US3861282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating and ventilating installation for a motor vehicle
Assignee: Daimler Benz AG
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Filing: 1974-04-10
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Granted: 1975-01-21
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Expires: 1994-04-10
Abstract
Abstract A heating and ventilating installation for a motor vehicle, with a blower consisting of an electric motor and a fan wheel, which can be selectively turned on and off by means of a manually actuatable switch; an additional switch is thereby provided in series with the manually actuatable switch, which at low driving velocities or during standstill of the vehicle turns off the engaged blower and with increasing velocity or when overcoming the standstill, again turns on the blower.
Inventors
- 👤 Hans O Scherenberg
- 👤 Rudolf Andres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00642; B60H1/00814; B60H1/00821; B60H1/00828
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
92 words
A heating and ventilating installation for a motor vehicle which comprises a blower means including an electric motor and a fan wheel, a manually actuatable switch means for selectively turning on and off the blower means, characterized by an additional switch means in series with the manually actuatable switch means, said additional switch means being operable to turn off the engaged blower means at low driving velocities or during standstill of the motor vehicle and being operable to turn on again the blower means with increasing velocity or upon overcoming the standstill.
Claim 2
Dependent Claim
92 words
A heating and ventilating installation for a motor vehicle which comprises a blower means including an electric motor and a fan wheel, a manually actuatable switch means for selectively turning on and off the blower means, characterized by an additional switch means in series with the manually actuatable switch means, said additional switch means being operable to turn off the engaged blower means at low driving velocities or during standstill of the motor vehicle and being operable to turn on again the blower means with increasing velocity or upon overcoming the standstill.
Claim 3
Dependent Claim
19 words
An installation according to claim 1, characterized in that the additional switch means consists of a centrifugal switch means.
Claim 4
Dependent Claim
19 words
An installation according to claim 1, characterized in that the additional switch means consists of a standstill switch means.
Claim 5
Dependent Claim
53 words
An installation according to claim 1, characterized in that a further switch means is provided in parallel to the additional switch means, said further switch means being operable to turn off the engaged blower means in dependence on a selected actuation of an actuating member carried out during stoppage of the motor vehicle.
Claim 6
Dependent Claim
21 words
An installation according to claim 4, characterized in that the further switch means is operatively connected with a foot brake means.
Claim 7
Dependent Claim
26 words
An installation according to claim 5, characterized in that the further switch means is operatively connected with a foot brake pedal of the foot brake means.
Claim 8
Dependent Claim
25 words
An installation according to claim 5, characterized in that the further switch means is operatively connected with a linkage of the foot brake pedal means.
Claim 9
Dependent Claim
36 words
An installation according to claim 5, characterized in that the manually actuatable switch means includes two engaging positions and in that the additional and further switch means are coordinated to only one of said engaging positions.
Claim 10
Dependent Claim
49 words
An installation according to claim 5, in which at least two different rotational speed ranges for the blower means are engageable by the manually actuatable switch means, characterized in that one of these rotational speed ranges remains uninfluenced by the additional switch means and by the further switch means.
Claim 11
Dependent Claim
20 words
An installation according to claim 9, characterized in that said one rotational speed range is the upper rotational speed range.
Claim 12
Dependent Claim
19 words
An installation according to claim 9, characterized in that the additional switch means consists of a centrifugal switch means.
Claim 13
Dependent Claim
19 words
An installation according to claim 1, characterized in that the additional switch means consists of a standstill switch means.
Claim 14
Dependent Claim
36 words
An installation according to claim 1, characterized in that the manually actuatable switch means includes two engaging positions and in that the additional and further switch means are coordinated to only one of said engaging positions.
Claim 15
Dependent Claim
49 words
An installation according to claim 1, in which at least two different rotational speed ranges for the blower means are engageable by the manually actuatable switch means, characterized in that one of these rotational speed ranges remains uninfluenced by the additional switch means and by the further switch means.
Claim 16
Dependent Claim
53 words
An installation according to claim 14, characterized in that a further switch means is provided in parallel to the additional switch means, said further switch means being operable to turn off the engaged blower means in dependence on a selected actuation of an actuating member carried out during stoppage of the motor vehicle.
Claim 17
Dependent Claim
53 words
An installation according to claim 13, characterized in that a further switch means is provided in parallel to the additional switch means, said further switch means being operable to turn off the engaged blower means in dependence on a selected actuation of an actuatIng member carried out during stoppage of the motor vehicle.
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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |