US3854525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning plant, particularly for motor vehicles
Assignee: Mahle Behr GmbH and Co KG
•
Filing: 1973-03-07
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Granted: 1974-12-17
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Expires: 1993-03-07
Abstract
Abstract Air conditioning plant for motor vehicles comprising a heating plant with a heat exchanger, a cooling plant with a condenser, vaporizer and blower, where the blower is a double radial blower, the blower motor is arranged between the two radial blowers and that the suction chamber between the two blowers can be optionally connected by means of a slidable cover with fresh air and/or a channel for surrounding or ambient air.
Inventors
- 👤 M Illg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:59
CPC Classifications
B; B60; B60H; B60H3/00; B60H1/00; B60H1/00007
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
In an air conditioning plant for motor vehicles comprising, a housing having an air suction chamber, a heat exchanger, a refrigerating plant having a condenser, an evaporator, a blower motor and blower means, the improvement where said blower means is a double radial blower disposed in a housing, said blower motor is disposed between said radial blowers, said air suction chamber is disposed between said two blowers and a fresh air and an ambient air channel are provided in said housing on opposite sides thereof in proximity to said blower means, a slidable closure movable relative to said fresh air and said ambient air channels, said slidable closure being a flexible band disposed along the outer edges of said suction chamber, and means operative to slide said closure into different positions to admit fresh air, ambient air or a mixture of both.
Claim 2
Dependent Claim
142 words
In an air conditioning plant for motor vehicles comprising, a housing having an air suction chamber, a heat exchanger, a refrigerating plant having a condenser, an evaporator, a blower motor and blower means, the improvement where said blower means is a double radial blower disposed in a housing, said blower motor is disposed between said radial blowers, said air suction chamber is disposed between said two blowers and a fresh air and an ambient air channel are provided in said housing on opposite sides thereof in proximity to said blower means, a slidable closure movable relative to said fresh air and said ambient air channels, said slidable closure being a flexible band disposed along the outer edges of said suction chamber, and means operative to slide said closure into different positions to admit fresh air, ambient air or a mixture of both.
Claim 3
Dependent Claim
21 words
Improvement in air conditioning plant in accordance with claim 1, where the radial blowers are single flue inwardly drawing radial rotors.
Claim 4
Dependent Claim
36 words
Improvement in air conditioning plant in accordance with claim 1, where the length of the slidable closure is substantially equal to the distance between the coordinated edges of the ambient air and the fresh air channels.
Claim 5
Dependent Claim
20 words
Improvement in air conditioning plant in accordance with claim 1, including a Bowden cable mechanism for displacing the slidable covering.
References Cited (Backward Citations)
US3139020A
Cited
US3315730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |