Patent US3823768A successfully refreshed from Google Patents.
US3823768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning apparatus
Assignee: Sioux Steam Cleaner Corp
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Filing: 1973-01-31
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Granted: 1974-07-16
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Expires: 1993-01-31
Abstract
Abstract An elongated generally rectangular housing having air inlet and discharge openings in its opposite ends, a cooling element and a heating element being mounted within the housing in spaced relationship longitudinally of the housing. A blower is mounted in the housing for receiving air from the interior of the housing and delivering conditioned air outwardly through the discharge opening. A damper arrangement provides for heat directing air selectively through or past the cooling element for controlling the temperature of air being delivered to the discharge opening of the housing.
Inventors
- 👤 J Finger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:57
CPC Classifications
F; F24; F24F; F24F1/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
289 words
Air conditioning apparatus comprising: a. an elongated generally rectangular housing having a pair of vertically spaced top and bottom longitudinal walls and laterally spaced longitudinal side walls, and opposite ends defining an air inlet opening at one end and an air discharge opening at the other end; b. air filter means in said housing adjacent said inlet opening; c. blower means in said housing adjacent said discharge opening and disposed to receive air from said outlet opening and deliver air outwardly through said discharge opening; d. air heating means in said housing between the ends thereof; e. air cooling evaporator radiator means in said housing between said heating means and one of said blower means and filter means and adaptEd to be connected to a source of cooling fluid; f. said radiator means extending transversely between one pair of said longitudinal walls in spaced relation to the other pair of said longitudinal walls and cooperating therewith to define a pair of longitudinal air passageways each having an inlet end toward said inlet opening and an outlet end toward said discharge opening, one of said longitudinal walls defining an auxiliary opening in spaced relation to said inlet opening and communicating with one of said longitudinal passageways; g. said radiator means having transverse passageways therethrough interconnecting said longitudinal passageways; h. and damper means at the inlet end of one of said passageways and the outlet end of the other of said passageways for controlling flow of air through said longitudinal and transverse passageways selectively, said damper means including a damper element pivotally movable between a first position covering said auxiliary opening and opening its respective longitudinal passageway, and a second position closing said respective longitudinal passageway and uncovering said auxiliary opening.
Claim 2
Dependent Claim
289 words
Air conditioning apparatus comprising: a. an elongated generally rectangular housing having a pair of vertically spaced top and bottom longitudinal walls and laterally spaced longitudinal side walls, and opposite ends defining an air inlet opening at one end and an air discharge opening at the other end; b. air filter means in said housing adjacent said inlet opening; c. blower means in said housing adjacent said discharge opening and disposed to receive air from said outlet opening and deliver air outwardly through said discharge opening; d. air heating means in said housing between the ends thereof; e. air cooling evaporator radiator means in said housing between said heating means and one of said blower means and filter means and adaptEd to be connected to a source of cooling fluid; f. said radiator means extending transversely between one pair of said longitudinal walls in spaced relation to the other pair of said longitudinal walls and cooperating therewith to define a pair of longitudinal air passageways each having an inlet end toward said inlet opening and an outlet end toward said discharge opening, one of said longitudinal walls defining an auxiliary opening in spaced relation to said inlet opening and communicating with one of said longitudinal passageways; g. said radiator means having transverse passageways therethrough interconnecting said longitudinal passageways; h. and damper means at the inlet end of one of said passageways and the outlet end of the other of said passageways for controlling flow of air through said longitudinal and transverse passageways selectively, said damper means including a damper element pivotally movable between a first position covering said auxiliary opening and opening its respective longitudinal passageway, and a second position closing said respective longitudinal passageway and uncovering said auxiliary opening.
Claim 3
Dependent Claim
47 words
The air conditioning apparatus defined in claim 1 in which said damper element is disposed to close the outlet end of said other one of the longitudinal passageways, said damper means including a second damper element disposed adjacent the inlet end of said one of the passageways.
Claim 4
Dependent Claim
66 words
The air conditioning apparatus defined in claim 1 in which said air heating means is disposed between said evaporator radiator means and said blower, said air heating means comprising a burner element extending transversely between said one pair of longitudinal walls, and a pair of panel-like heat radiating members extending longitudinally of said burner and diverging in the direction of the discharge end of the housing.
Claim 5
Dependent Claim
129 words
The air conditioning apparatus defined in claim 1 in which said evaporator radiator means is disposed in a horizontal plane intermediate said top and bottom longitudinal walls and extends to said opposite side walls to dispose said longitudinal air passageways above and below said evaporator radiator means, said bottom wall defining said auxiliary opening underlying the evaporator radiator means adjacent the delivery end of the lower one of said longitudinal passageways, said damper element being pivotally mounted to said bottom wall at the delivery end of said lower longitudinal passageway for swinging movements between a lowered position covering said auxiliary opening and permitting free flow of air through said lower longitudinal passageway and a raised position blocking the delivery end of said lower passageway and uncovering said auxiliary opening.
Claim 6
Dependent Claim
67 words
The air conditioning apparatus defined in claim 4 in which said damper means includes a second damper element pivotally secured to said housing adjacent the inlet end of the upper one of said longitudinal passageways for movements between a first position generally parallel to said top wall to permit free flow of air through said upper longitudinal passageway, and a second position blocking said upper longitudinal passageway.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |