US3714982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clean-operating baseboard heater
Assignee: Orbit Manufacturing Co
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Filing: 1971-03-01
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Granted: 1973-02-06
•
Expires: 1991-03-01
Abstract
Abstract A baseboard heater is provided with diffuser means having a series of apertures for causing heated air to the exit therefrom in a series of discrete upwardly flowing columns spaced from the wall against which the heater is mounted to reduce the tendency for the heated air to deposit entrained foreign matter on the wall. Preferred dimensional relations are disclosed for the apertures in the diffuser means to ensure satisfactory performance of the heater.
Inventors
- 👤 C Shriver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:11
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/002
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
200 words
In a baseboard heater having a housing with heat-producing means mounted therein, said housing having an upstanding rear wall for mounting against a partition in an area to be heated and a front wall spaced from said rear wall to form an air flow passage across said heat-producing means in said housing, the improvement comprising: a diffuser plate mounted in said flow passage above said heat-producing means, said diffuser plate having a deflector flange extending forwardly from the rear wall of said housing and a flange depending from said deflector flange and spanning toward said front wall with a series of apertures therein spaced predetermined distances from one another and from said rear wall, each aperture in said series having a lengthwise dimension measured in a horizontal direction ranging substantially between one-third and two-thirds of the center to center spacing of said apertures with the ratio of length to width of each aperture being in a range of substantially 1/1 to 4/1, whereby air heated by the heat-producing means exits from said housing in a series of discrete columns to reduce the tendency for foreign matter carried by the heated air to become deposited on the wall above the heater.
Claim 2
Dependent Claim
200 words
In a baseboard heater having a housing with heat-producing means mounted therein, said housing having an upstanding rear wall for mounting against a partition in an area to be heated and a front wall spaced from said rear wall to form an air flow passage across said heat-producing means in said housing, the improvement comprising: a diffuser plate mounted in said flow passage above said heat-producing means, said diffuser plate having a deflector flange extending forwardly from the rear wall of said housing and a flange depending from said deflector flange and spanning toward said front wall with a series of apertures therein spaced predetermined distances from one another and from said rear wall, each aperture in said series having a lengthwise dimension measured in a horizontal direction ranging substantially between one-third and two-thirds of the center to center spacing of said apertures with the ratio of length to width of each aperture being in a range of substantially 1/1 to 4/1, whereby air heated by the heat-producing means exits from said housing in a series of discrete columns to reduce the tendency for foreign matter carried by the heated air to become deposited on the wall above the heater.
Claim 3
Dependent Claim
200 words
In a baseboard heater having a housing with heat-producing means mounted therein, said housing having an upstanding rear wall for mounting against a partition in an area to be heated and a front wall spaced from said rear wall to form an air flow passage across said heat-producing means in said housing, the improvement comprising: a diffuser plate mounted in said flow passage above said heat-producing means, said diffuser plate having a deflector flange extending forwardly from the rear wall of said housing and a flange depending from said deflector flange and spanning toward said front wall with a series of apertures therein spaced predetermined distances from one another and from said rear wall, each aperture in said series having a lengthwise dimension measured in a horizontal direction ranging substantially between one-third and two-thirds of the center to center spacing of said apertures with the ratio of length to width of each aperture being in a range of substantially 1/1 to 4/1, whereby air heated by the heat-producing means exits from said housing in a series of discrete columns to reduce the tendency for foreign matter carried by the heated air to become deposited on the wall above the heater.
Claim 4
Dependent Claim
200 words
In a baseboard heater having a housing with heat-producing means mounted therein, said housing having an upstanding rear wall for mounting against a partition in an area to be heated and a front wall spaced from said rear wall to form an air flow passage across said heat-producing means in said housing, the improvement comprising: a diffuser plate mounted in said flow passage above said heat-producing means, said diffuser plate having a deflector flange extending forwardly from the rear wall of said housing and a flange depending from said deflector flange and spanning toward said front wall with a series of apertures therein spaced predetermined distances from one another and from said rear wall, each aperture in said series having a lengthwise dimension measured in a horizontal direction ranging substantially between one-third and two-thirds of the center to center spacing of said apertures with the ratio of length to width of each aperture being in a range of substantially 1/1 to 4/1, whereby air heated by the heat-producing means exits from said housing in a series of discrete columns to reduce the tendency for foreign matter carried by the heated air to become deposited on the wall above the heater.
Claim 5
Dependent Claim
121 words
Apparatus according to clAim 1 wherein said front wall has a rearwardly downturned lip extending along its uppermost edge and said diffuser plate has an inverted substantially L-shaped transverse cross-section with a forwardly upturned lip extending along the lower margin of its apertured flange and projecting into the space defined by said front wall lip, sealing means carried on said upturned lip to engage against said front wall and prevent heated air from flowing upwardly through said space, and including an end member disposed adjacent each end of said heat-producing means and transverse to said plate for cooperating therewith to define a heated-air plenum above the heat-producing means so that heated air exists only through the apertures in the diffuser plate.
Claim 6
Dependent Claim
50 words
Apparatus according to claim 1 wherein said housing has a top shelf extending forwardly from said rear wall and terminating rearwardly adjacent said apertures, said top shelf being spaced upwardly from said deflector flange so that said deflector flange prevents heated air from impinging on the underside of said shelf.
Claim 7
Dependent Claim
49 words
Apparatus according to claim 1 wherein said heater has elongated temperature-sensing means disposed above said heat-producing means and extending along at least a portion of its length and including tab means integral with said deflector flange and located at spaced intervals for engaging and supporting said temperature sensing means.
Claim 8
Dependent Claim
79 words
Apparatus according to claim 1 including means mounting said diffuser plate to the rear wall of said housing, said mounting means including an integral downturned extension on said deflector flange disposed along the rear wall of said housing, insulating means disposed between the rear wall of said housing and said extension, and means extending at spaced intervals through said extension, said insulating means, and housing rear wall for fastening said extension and hence said diffuser plate to the housing.
Claim 9
Dependent Claim
101 words
Apparatus according to claim 1 wherein said apertured flange has a predetermined widthwise dimension between said deflector flange and said front wall and each of said apertures has a widthwise dimension corresponding substantially to said dimension and a lengthwise dimension preselected to provide said apertured flange with a total area open to air flow in a range of substantially one-third to substantially two-thirds of its total area per unit length of said heat-producing means, the spacing between edges of adjacent apertures in said series being in a range of substantially one-half to substantially twice the lengthwise dimension of the adjacent apertures.
Claim 10
Dependent Claim
51 words
Apparatus according to claim 1 wherein each apertures has an upper lengthwise edge extending on the line of juncture of the plate-flanges and wherein the distance between widthwise edges of said apertures corresponds substantially to the spacing between said upper edge of the apertures and said rear wall of the housing.
Claim 11
Dependent Claim
52 words
Apparatus according to claim 7 wherein said heat-producing means has a capacity in a range of substantially 150 to substantially 375 watts per lineal foot and said apertures are spaced apart on substantially 4 inch centers with each aperture having an area in a range of substantially 2 in.2 to 2.5 in.2
Claim 12
Dependent Claim
31 words
Apparatus according to claim 7 wherein the capacity of said heat-producing means is substantially 300 watts per lineal foot and each of said apertures has an area of substantially 2 in.2
Claim 13
Dependent Claim
31 words
Apparatus according to claim 7 wherein the capacity of said heat-producing means is substantially 150 watts per lineal foot and each said apertures has an area of substantially 2 1/2 in2.
References Cited (Backward Citations)
US3310652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |