US3636306A - Infrared heater and ventilator unit - Google Patents
Infrared heater and ventilator unit Download PDFInfo
- Publication number
- US3636306A US3636306A US31079A US3636306DA US3636306A US 3636306 A US3636306 A US 3636306A US 31079 A US31079 A US 31079A US 3636306D A US3636306D A US 3636306DA US 3636306 A US3636306 A US 3636306A
- Authority
- US
- United States
- Prior art keywords
- housing
- lamps
- fan
- blower
- room
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0033—Heating devices using lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
- F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
Definitions
- An infrared heater and ventilator unit comprises a rectangular, sheet metal housing adapted to-be mounted in the ceiling of a room with the lower end of the housing approximately flush with the ceiling.
- Two infrared lamps are mounted in sockets that are fastened to the underside of a narrow bar or strap that extends centrally across the housing.
- a small fan is mounted on the strap between the lamps to blow heat therefrom downwardly into the room; and a ventilator blower is mounted above the fan to draw air upwardly into the housing from the room, and to exhaust the air into the space above the ceiling.
- the fan motor is wired to operate whenever one or more of the lamps is energized; and the blower is operable independently of the lamps.
- the invention relates to combination heater-ventilators, and more particularly to an infraredheater-ventilator unit of the type adapted to be mounted in the ceiling or wall of a bathroom, or the like.
- a bathroom for example, is heated by a ceiling-mounted heater unit comprising an electric radiant heater, and a circulating fan for blowing warm air from the heater into the room.
- a ceiling-mounted heater unit comprising an electric radiant heater, and a circulating fan for blowing warm air from the heater into the room.
- a concomitant object of the invention is to provide a unit for heating and ventilating a room that will operate so as not to transmit excessive heat to the structure of the building and/or its electrical wiring.
- a further object of this invention is to provide an improved ceiling unit of the heater-ventilator type, which utilizes infrared lamps for heating purposes; and a centrifugal blower for ventilating purposes, and with which the infrared heating lamp or lamps and the ventilator blower of the unit can be operated in unison or independently of one another.
- FIG. 1 is a sectional view taken along the line 11 in FIG. 2 looking in the direction of the arrows, and illustrating in phantorn a pair of infrared lamps mounted in the unit;
- FIG. 2 is a bottom plan view of an infrared heater and ventilator unit made in accordance with one embodiment of this invention, a portion of the unit being cut away for purposes of illustration; and
- FIG. 3 is a wiring diagram illustrating one manner in which the unit may be wired for operation.
- FIG. 1 denotes generally an oblong, sheet metal housing open at its bottom and having spaced, parallel end walls 11 and 12, and spaced, parallel sidewalls 13 and 14. Secured at one end to the inside surfaces of the end walls 11 and 12, and projecting at their opposite ends centrally into housing 10 are two angle brackets 16. Removably secured at opposite ends by screws 17 to the inner ends of the brackets 16, and extending across the central opening in housing 10, is an elongate metal bar or strap 18. The strap 18 is bowed or bent slightly downwardly from both ends as shown more clearly in FIG. 1.
- a small, alternating current, single coil, C-frame motor 22 Suspended beneath the midpoint of strap 17 by bolts 21 is a small, alternating current, single coil, C-frame motor 22.
- Bolts 21 project upwardly from a pair of brackets 23, which project from diametrically opposite sides of the motor, and are fastened at their upper ends to the strap 18 by nuts 24.
- the armature or drive shaft 25 of motor 22 projects downwardly, and has fastened thereon a conventional fan 26. This fan is constructed so that when motor 22 is energized, the fan 26 drives air downwardly out of housing 10.
- a rectangular grille or faceplate 34 Removably secured, as for example by tension springs 32, over the lower, open end of housing 10 is a rectangular grille or faceplate 34.
- This plate which is generally oblong in configuration, is slightly larger than the housing 10, has an upturned marginal edge or flange portion 35. Intermediate its ends plate 34 is bent downwardly in parallelism with the lampsupporting strap 18. At opposite sides of its midpoint, plate 34 has therethrough larger, circular openings 36, which register with the infrared lamps L mounted in the receptacles 28.
- the plate 34 is formed with truncated conical flanges 37 around the openings 36.
- Each spring 32 is fastened at its upper end to the underside of the strap 18, and on its lower end has a hook 38 removably engaged in an opening in one of the flanges 37.
- Bracket 40 Immediately above the motor housing 20 is a bracket 40 having two legs bent laterally outwardly and awayfrom one another as at 42. Bolts 43 fasten bracket 40 to a conventional centrifugal blower 45 supported'thereby in the upper end of housing 10. Blower 45 is mounted so that its inlet 46 faces downwardly toward bracket 40, and its outlet 47 projects through an openingin the housing wall 14 to the exterior of housing 10.
- power is adapted to be supplied to the unit by main lines L1 and L2, which are connected to an alternating current (AC) power source.
- the motor 45' for the blower 45 is connected across lines L1 and L2 in series with a conventional ON-OFF switch 50.
- the lamps in these receptacles are energizable selectively by a three-position switch 54 having contacts 55, 5,6 and 57, respectively.
- Switch 54 is movable manually between OFF position in which both of the lamps L are off, WARM position in which one only of the lamps is on, and HOT position in which both of the lamps are energized.
- the upper end of the housing 10 is inserted into a registering opening in the ceiling C (FIG. 1), for instance, of a room, and is secured to the ceiling by screws or the like, and by right-angular mounting brackets 60, which are fastened to the outsides of the housing end walls 11 and 12.
- the outlet 47 of the blower 45 will then exhaust into the space above ceiling C.
- the switches 50 and 54 are mounted in any convenient spot on the wall of the room. By manipulation of the switches 50 and 54, then, the ventilator or blower 45 and the lamps L, can be energized when desired.
- the fan motor 22 Whenever oneof the lamps is energized, the fan motor 22 will also be energized so that the fan 26 will drive the heat from the lamps downwardly through the grille 34 and into the room, thereby not only heating the room but preventing undesirable concentration of the heat from the lamps around the wiring in the unit and the adjacent portions of the ceiling.
- the blower motor 45' Whenever the blower motor 45' is energized, air is drawn from the room upwardly through the openings 36 in the grille 34 and around the flanged edge of the grille, into the blower inlet 46, and is exhausted by the blower through its outlet 47 to the space above the ceiling.
- a duct (not illustrated) may be used to connect the exhaust 47 with the exterior of the building in which the unit is mounted.
- the infrared lamps L employed in the above-disclosed heater-ventilator unit may be of the R/40 variety, and should not exceed approximately 250 watts each. With this construction, the unit may be mounted in a ceiling having thermal insulation with an R-factor of 12 or more, and used without excessively heating the surrounding structure. This was not possible with prior units.
- the instant invention enables the use of infrared heating lamps in ceiling units without requiring any change in the specification of the insulation heretofore employed.
- the fan motor 22 connected to operate when either or both of the lamps L are energized, the heat from the lamp, or lamps, is blown downwardly into the room in which the unit is mounted, therefore preventing an excessive buildup of heat in the immediate area of the unit.
- the inlet for the ventilator is positioned above and in registry with the fan 26, so that when both the fan 26 and blower 45 are operating, the air withdrawn from the room enters the lower end of housing around the marginal edges of grille 34, while the hot air developed by the lamps L is blown down into the room through the large openings 36 in the grille.
- the lamp receptacles 28 and the registering openings 36 in the grill 34 are inclined slightly to the vertical, and away from one another, so that heat emanating therefrom is distributed more evenly to all parts of the associated room, than would be the case if the axes of the receptacles 28 and openings 36 were parallel to one another.
- a combination heater-ventilator unit comprising an open-ended housing adapted to be secured in an opening in the ceiling of a room with an open end facing downwardly,
- an electric fan mounted on the underside of said strap centrally thereof and above said open end to blow air downwardly through the open end of said housing
- centrifugal blower mounted in said housing above said strap and having its inlet facing said fan substantially centrally of said housing, and having an exhaust port communicating with an opening in one side of said housing
- said grille being bowed downwardly between its sides and having openings therein registering with said lamp sockets and the lamps mounted therein, through which air heated by said lamps is blown out into the room,
- said grille being spaced outwardly beyond said housing around the perimeter of said housing and being spaced downwardly from the ceiling to provide an opening between the housing and the grille through which air is drawn from the room into said housing when said blower is operating.
- blower-energizing means comprises a first switch connected to said blower and movable into and out of closed position selectively to energize and deenergize said blower, and
- said lamp-energizing means comprises a second switch movable independently of said first switch, and selectively between a first position in which it deenergizes said lamps and said fan, a second position in which it energizes said fan and one of said lamps, and a third position in which it energizes said fan and both of said lamps.
Abstract
Description
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3107970A | 1970-04-23 | 1970-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3636306A true US3636306A (en) | 1972-01-18 |
Family
ID=21857527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US31079A Expired - Lifetime US3636306A (en) | 1970-04-23 | 1970-04-23 | Infrared heater and ventilator unit |
Country Status (1)
Country | Link |
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US (1) | US3636306A (en) |
Cited By (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3786233A (en) * | 1972-08-18 | 1974-01-15 | Fasco Industries | Infrared heater and ventilator unit |
US4263500A (en) * | 1978-06-19 | 1981-04-21 | Clairol Incorporated | Infrared heating hair dryer |
US4714819A (en) * | 1985-07-17 | 1987-12-22 | Hitachi Metals, Ltd. | Directly heating fixing apparatus having current collecting bearings |
US20050111972A1 (en) * | 2003-11-21 | 2005-05-26 | Broan-Nutone Llc | Modular ventilating exhaust fan assembly and method |
US20050117341A1 (en) * | 2003-11-14 | 2005-06-02 | Craw Gary J. | Lighting and ventilating apparatus and method |
US20050218289A1 (en) * | 2004-04-02 | 2005-10-06 | Penlesky Robert G | Fan mounting spacer assembly and method |
US7203416B2 (en) | 2003-11-21 | 2007-04-10 | Broan-Nutone Llc | Ventilating and heating apparatus with heater shielded by tapered discharge duct |
USD618782S1 (en) | 2009-12-22 | 2010-06-29 | Broan-Nutone, Llc | Grille |
US20100197216A1 (en) * | 2007-04-24 | 2010-08-05 | Panasonic Corporation | Ventilator with illuminating unit and human sensor |
USD635238S1 (en) | 2009-07-14 | 2011-03-29 | Broan-Nutone Llc | Ventilation grille |
USD745652S1 (en) | 2014-01-28 | 2015-12-15 | Homewerks Worldwide, LLC | Fan grille |
USD752199S1 (en) | 2014-09-22 | 2016-03-22 | Homewerks Worldwide, LLC | Bath fan with speaker |
USD752202S1 (en) | 2013-08-08 | 2016-03-22 | Homewerks Worldwide, LLC | Fan grille |
US9344787B2 (en) | 2012-12-22 | 2016-05-17 | Homewerks Worldwide, LLC | Audio equipped fan |
US9398357B2 (en) | 2012-12-22 | 2016-07-19 | Homewerks Worldwide, LLC | Audio equipped fan |
WO2016168804A1 (en) * | 2015-04-17 | 2016-10-20 | Hubbell Incorporated | Light fixture bracket and light fixture assembly |
US20160381733A1 (en) * | 2014-02-10 | 2016-12-29 | Myoung Hee PARK | Combined lighting and heating device |
US9609407B2 (en) | 2012-12-22 | 2017-03-28 | Homewerks Worldwide, LLC | Method of manufacturing an audio equipped fan assembly |
USD804627S1 (en) | 2015-05-19 | 2017-12-05 | Broan-Nutone Llc | Vent hood |
USD808001S1 (en) | 2016-03-14 | 2018-01-16 | Homewerks Worldwide, LLC | Square fan grille |
USD814009S1 (en) | 2015-05-19 | 2018-03-27 | Broan-Nutone, Llc | Vent hood |
USD815724S1 (en) | 2015-09-14 | 2018-04-17 | Broan-Nutone Llc | Ventilation grill |
USD816206S1 (en) | 2015-09-14 | 2018-04-24 | Broan-Nutone Llc | Ventilation grill |
USD820428S1 (en) | 2013-06-20 | 2018-06-12 | Broan-Nutone Llc | Range hood |
USD822821S1 (en) | 2015-09-14 | 2018-07-10 | Broan-Nutone, Llc | Ventilation grill |
USD826391S1 (en) | 2015-05-19 | 2018-08-21 | Broan-Nutone Llc | Vent hood |
USD836765S1 (en) | 2015-08-31 | 2018-12-25 | Broan-Nutone Llc | Vent hood |
USD837966S1 (en) | 2008-01-02 | 2019-01-08 | Broan-Nutone Llc | Grille |
USD850601S1 (en) | 2014-05-01 | 2019-06-04 | Broan-Nutone Llc | Grill element |
USD858734S1 (en) | 2015-05-19 | 2019-09-03 | Broan-Nutone Llc | Vent hood |
USD861639S1 (en) | 2015-10-06 | 2019-10-01 | Broan-Nutone Llc | Wireless speaker |
USD881375S1 (en) | 2018-05-22 | 2020-04-14 | Broan-Nutone Llc | Grille assembly for a bathroom ventilation fan |
USD883467S1 (en) | 2015-09-14 | 2020-05-05 | Broan-Nutone Llc | Ventilation grill |
USD884869S1 (en) | 2015-09-14 | 2020-05-19 | Broan-Nutone Llc | Ventilation grill |
USD886983S1 (en) | 2015-09-14 | 2020-06-09 | Broan-Nutone Llc | Ventilation grill |
USD897521S1 (en) | 2016-10-14 | 2020-09-29 | Broan-Nutone Llc | Vent hood |
USD898896S1 (en) | 2019-01-22 | 2020-10-13 | Broan-Nutone Llc | Ventilation grille |
USD899582S1 (en) | 2019-01-22 | 2020-10-20 | Broan-Nutone Llc | Ventilation grille |
USD902372S1 (en) | 2018-11-28 | 2020-11-17 | Broan-Nutone Llc | Ventilation grille |
USD904594S1 (en) | 2015-09-14 | 2020-12-08 | Broan-Nutone Llc | Ventilation grill |
USD908200S1 (en) | 2015-09-14 | 2021-01-19 | Broan-Nutone Llc | Ventilation grill |
USD908861S1 (en) | 2018-11-28 | 2021-01-26 | Broan-Nutone Llc | Ventilation grille |
USD909560S1 (en) | 2018-11-28 | 2021-02-02 | Broan-Nutone Llc | Ventilation grille |
USD932612S1 (en) | 2019-11-26 | 2021-10-05 | Homewerks Worldwide, LLC | Fan grille |
USD932611S1 (en) | 2019-06-24 | 2021-10-05 | Homewerks Worldwide, LLC | Fan grille |
USD933194S1 (en) | 2019-06-24 | 2021-10-12 | Homewerks Worldwide, LLC | Fan grille |
USD933195S1 (en) | 2019-11-26 | 2021-10-12 | Homewerks Worldwide, LLC | Fan grille |
USD933809S1 (en) | 2019-11-26 | 2021-10-19 | Homewerks Worldwide, LLC | Fan grille |
USD943730S1 (en) | 2018-11-28 | 2022-02-15 | Broan-Nutone Llc | Ventilation grille |
USD946137S1 (en) | 2019-05-01 | 2022-03-15 | Broan-Nutone Llc | Ventilation grille |
USD946136S1 (en) | 2018-11-28 | 2022-03-15 | Broan-Nutone Llc | Ventilation grille |
USD948025S1 (en) | 2019-11-26 | 2022-04-05 | Homewerks Worldwide, LLC | Fan grille |
US11300305B2 (en) | 2019-02-15 | 2022-04-12 | Broan-Nutone Llc | Grille attachment feature for a ventilation system |
US11326792B2 (en) | 2019-02-15 | 2022-05-10 | Broan-Nutone Llc | Grille attachment system for a ventilation system |
-
1970
- 1970-04-23 US US31079A patent/US3636306A/en not_active Expired - Lifetime
Cited By (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3786233A (en) * | 1972-08-18 | 1974-01-15 | Fasco Industries | Infrared heater and ventilator unit |
US4263500A (en) * | 1978-06-19 | 1981-04-21 | Clairol Incorporated | Infrared heating hair dryer |
US4714819A (en) * | 1985-07-17 | 1987-12-22 | Hitachi Metals, Ltd. | Directly heating fixing apparatus having current collecting bearings |
US20090073702A1 (en) * | 2003-11-14 | 2009-03-19 | Craw Gary J | Lighting and ventilating apparatus and method |
US20050117341A1 (en) * | 2003-11-14 | 2005-06-02 | Craw Gary J. | Lighting and ventilating apparatus and method |
US9022622B2 (en) | 2003-11-14 | 2015-05-05 | Broan-Nutone Llc | Lighting and ventilating apparatus and method |
US7455432B2 (en) | 2003-11-14 | 2008-11-25 | Broan-Nutone Llc | Lighting and ventilating apparatus and method |
US20070201236A1 (en) * | 2003-11-14 | 2007-08-30 | Broan-Nutone Llc. | Lighting and ventilating apparatus and method |
US8434916B2 (en) | 2003-11-14 | 2013-05-07 | Broan NuTone, LLC | Lighting and ventilating apparatus and method |
US7175309B2 (en) | 2003-11-14 | 2007-02-13 | Broan-Nutone Llc | Lighting and ventilating apparatus and method |
US20050111972A1 (en) * | 2003-11-21 | 2005-05-26 | Broan-Nutone Llc | Modular ventilating exhaust fan assembly and method |
US7203416B2 (en) | 2003-11-21 | 2007-04-10 | Broan-Nutone Llc | Ventilating and heating apparatus with heater shielded by tapered discharge duct |
US20060073008A1 (en) * | 2003-11-21 | 2006-04-06 | Broan-Nutone Llc | Modular ventilating exhaust fan assembly and method |
US6979169B2 (en) | 2003-11-21 | 2005-12-27 | Broan-Nutone Llc | Modular ventilating exhaust fan assembly and method |
US7455500B2 (en) | 2003-11-21 | 2008-11-25 | Broan-Nu Tone Llc | Modular ventilating exhaust fan assembly and method |
US20050218289A1 (en) * | 2004-04-02 | 2005-10-06 | Penlesky Robert G | Fan mounting spacer assembly and method |
US20070040091A1 (en) * | 2004-04-02 | 2007-02-22 | Broan-Nutone Llc. | Fan mounting spacer assembly and method |
US7128303B2 (en) | 2004-04-02 | 2006-10-31 | Broan-Nu Tone Llc | Fan mounting spacer assembly |
US20100197216A1 (en) * | 2007-04-24 | 2010-08-05 | Panasonic Corporation | Ventilator with illuminating unit and human sensor |
USD837966S1 (en) | 2008-01-02 | 2019-01-08 | Broan-Nutone Llc | Grille |
USD635238S1 (en) | 2009-07-14 | 2011-03-29 | Broan-Nutone Llc | Ventilation grille |
USD618782S1 (en) | 2009-12-22 | 2010-06-29 | Broan-Nutone, Llc | Grille |
US9398357B2 (en) | 2012-12-22 | 2016-07-19 | Homewerks Worldwide, LLC | Audio equipped fan |
US9609407B2 (en) | 2012-12-22 | 2017-03-28 | Homewerks Worldwide, LLC | Method of manufacturing an audio equipped fan assembly |
US9344787B2 (en) | 2012-12-22 | 2016-05-17 | Homewerks Worldwide, LLC | Audio equipped fan |
USD820428S1 (en) | 2013-06-20 | 2018-06-12 | Broan-Nutone Llc | Range hood |
USD752202S1 (en) | 2013-08-08 | 2016-03-22 | Homewerks Worldwide, LLC | Fan grille |
USD745652S1 (en) | 2014-01-28 | 2015-12-15 | Homewerks Worldwide, LLC | Fan grille |
US20160381733A1 (en) * | 2014-02-10 | 2016-12-29 | Myoung Hee PARK | Combined lighting and heating device |
USD850601S1 (en) | 2014-05-01 | 2019-06-04 | Broan-Nutone Llc | Grill element |
USD752199S1 (en) | 2014-09-22 | 2016-03-22 | Homewerks Worldwide, LLC | Bath fan with speaker |
WO2016168804A1 (en) * | 2015-04-17 | 2016-10-20 | Hubbell Incorporated | Light fixture bracket and light fixture assembly |
US10184644B2 (en) | 2015-04-17 | 2019-01-22 | Hubbell Incorporated | Light fixture bracket and light fixture assembly |
USD814009S1 (en) | 2015-05-19 | 2018-03-27 | Broan-Nutone, Llc | Vent hood |
USD804627S1 (en) | 2015-05-19 | 2017-12-05 | Broan-Nutone Llc | Vent hood |
USD858734S1 (en) | 2015-05-19 | 2019-09-03 | Broan-Nutone Llc | Vent hood |
USD826391S1 (en) | 2015-05-19 | 2018-08-21 | Broan-Nutone Llc | Vent hood |
USD836765S1 (en) | 2015-08-31 | 2018-12-25 | Broan-Nutone Llc | Vent hood |
USD816206S1 (en) | 2015-09-14 | 2018-04-24 | Broan-Nutone Llc | Ventilation grill |
USD908200S1 (en) | 2015-09-14 | 2021-01-19 | Broan-Nutone Llc | Ventilation grill |
USD815724S1 (en) | 2015-09-14 | 2018-04-17 | Broan-Nutone Llc | Ventilation grill |
USD822821S1 (en) | 2015-09-14 | 2018-07-10 | Broan-Nutone, Llc | Ventilation grill |
USD904594S1 (en) | 2015-09-14 | 2020-12-08 | Broan-Nutone Llc | Ventilation grill |
USD886983S1 (en) | 2015-09-14 | 2020-06-09 | Broan-Nutone Llc | Ventilation grill |
USD883467S1 (en) | 2015-09-14 | 2020-05-05 | Broan-Nutone Llc | Ventilation grill |
USD884869S1 (en) | 2015-09-14 | 2020-05-19 | Broan-Nutone Llc | Ventilation grill |
USD861639S1 (en) | 2015-10-06 | 2019-10-01 | Broan-Nutone Llc | Wireless speaker |
USD808001S1 (en) | 2016-03-14 | 2018-01-16 | Homewerks Worldwide, LLC | Square fan grille |
USD897521S1 (en) | 2016-10-14 | 2020-09-29 | Broan-Nutone Llc | Vent hood |
USD895783S1 (en) | 2018-05-22 | 2020-09-08 | Broan-Nutone Llc | Grille assembly for a bathroom ventilation fan |
USD881375S1 (en) | 2018-05-22 | 2020-04-14 | Broan-Nutone Llc | Grille assembly for a bathroom ventilation fan |
USD943730S1 (en) | 2018-11-28 | 2022-02-15 | Broan-Nutone Llc | Ventilation grille |
USD908861S1 (en) | 2018-11-28 | 2021-01-26 | Broan-Nutone Llc | Ventilation grille |
USD909560S1 (en) | 2018-11-28 | 2021-02-02 | Broan-Nutone Llc | Ventilation grille |
USD902372S1 (en) | 2018-11-28 | 2020-11-17 | Broan-Nutone Llc | Ventilation grille |
USD946136S1 (en) | 2018-11-28 | 2022-03-15 | Broan-Nutone Llc | Ventilation grille |
USD899582S1 (en) | 2019-01-22 | 2020-10-20 | Broan-Nutone Llc | Ventilation grille |
USD898896S1 (en) | 2019-01-22 | 2020-10-13 | Broan-Nutone Llc | Ventilation grille |
US11300305B2 (en) | 2019-02-15 | 2022-04-12 | Broan-Nutone Llc | Grille attachment feature for a ventilation system |
US11732914B2 (en) | 2019-02-15 | 2023-08-22 | Broan-Nutone Llc | Grille attachment feature for a ventilation system |
US11326792B2 (en) | 2019-02-15 | 2022-05-10 | Broan-Nutone Llc | Grille attachment system for a ventilation system |
USD946137S1 (en) | 2019-05-01 | 2022-03-15 | Broan-Nutone Llc | Ventilation grille |
USD932611S1 (en) | 2019-06-24 | 2021-10-05 | Homewerks Worldwide, LLC | Fan grille |
USD933194S1 (en) | 2019-06-24 | 2021-10-12 | Homewerks Worldwide, LLC | Fan grille |
USD933809S1 (en) | 2019-11-26 | 2021-10-19 | Homewerks Worldwide, LLC | Fan grille |
USD948025S1 (en) | 2019-11-26 | 2022-04-05 | Homewerks Worldwide, LLC | Fan grille |
USD933195S1 (en) | 2019-11-26 | 2021-10-12 | Homewerks Worldwide, LLC | Fan grille |
USD932612S1 (en) | 2019-11-26 | 2021-10-05 | Homewerks Worldwide, LLC | Fan grille |
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