Patent US2884339A successfully refreshed from Google Patents.
Patent US1948946A successfully refreshed from Google Patents.
Patent US4462610A successfully refreshed from Google Patents.
US4462610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle height adjusting apparatus
Assignee: Tokico Ltd
•
Filing: 1982-06-17
•
Granted: 1984-07-31
•
Expires: 2002-06-17
Abstract
Abstract A vehicle height adjusting apparatus includes a height adjustor receiving therein or exhausting therefrom pressurized air to adjust the height of a vehicle, an air compressor for supplying pressurized air to the height adjustor, a temperature detector for detecting the temperature of the air compressor, and a control device including an actuating circuit for operating the air compressor and a memory circuit receiving a signal from the temperature detector to stop the operation of the actuating circuit when the temperature detected by the temperature detector exceeds a predetermined level.
Inventors
- 👤 Tetsuo Saito
- 👤 Sumio Ema
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:19
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/015; B60G17/0152; B60G17/0155; B60G17/02; B60G17/04; B60G17/0408; B60G2400/00; B60G2400/70; B60G2400/71; B60G2400/712; B60G2400/7122; B60G2500/00; B60G2500/20; B60G2500/205; Y; Y10; Y10S; Y10S280/00; Y10S280/01
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
286 words
An apparatus for adjusting the height of a vehicle, said apparatus comprising: height adjustor means, adapted to be connected between sprung and unsprung masses of the vehicle, for receiving therein pressurized air to increase the height of the vehicle and for having exhausted therefrom pressurized air to decrease the height of the vehicle; air compressor means connected to said height adjustor means and operable for supplying thereto pressurized air to increase the height of the vehicle; control means for controlling the operation of said air compressor means and for preventing the overheating of said air compressor means, said control means comprising actuating circuit means connected to said air compressor means for operating said air compressor means, temperature detector means for detecting the temperature of said air compressor means and for generating a signal representative thereof, and memory circuit means connected to said actuating circuit means and to said temperature detector means for receiving said signal from said temperature detector means, for, upon the temperature detected by said temperature detector means exceeding a predetermined level, deactivating said actuating circuit means and thereby stopping operation of said air compressor means, and for, upon the temperature detected by said temperature detector means dropping below said predetermined level, preventing automatic reactivation of said actuating circuit means and restarting of operation of said air compressor means; and means for selectively setting said memory circuit means in a normal condition thereof to reactivate said actuating circuit means to restart operation of said air compressor means upon said detected temperature being below said predetermined level, said setting means comprising a vehicle main switch connected to said memory circuit means and selectively manually operable to set said memory circuit means in said normal condition.
Claim 2
Independent Claim
286 words
An apparatus for adjusting the height of a vehicle, said apparatus comprising: height adjustor means, adapted to be connected between sprung and unsprung masses of the vehicle, for receiving therein pressurized air to increase the height of the vehicle and for having exhausted therefrom pressurized air to decrease the height of the vehicle; air compressor means connected to said height adjustor means and operable for supplying thereto pressurized air to increase the height of the vehicle; control means for controlling the operation of said air compressor means and for preventing the overheating of said air compressor means, said control means comprising actuating circuit means connected to said air compressor means for operating said air compressor means, temperature detector means for detecting the temperature of said air compressor means and for generating a signal representative thereof, and memory circuit means connected to said actuating circuit means and to said temperature detector means for receiving said signal from said temperature detector means, for, upon the temperature detected by said temperature detector means exceeding a predetermined level, deactivating said actuating circuit means and thereby stopping operation of said air compressor means, and for, upon the temperature detected by said temperature detector means dropping below said predetermined level, preventing automatic reactivation of said actuating circuit means and restarting of operation of said air compressor means; and means for selectively setting said memory circuit means in a normal condition thereof to reactivate said actuating circuit means to restart operation of said air compressor means upon said detected temperature being below said predetermined level, said setting means comprising a vehicle main switch connected to said memory circuit means and selectively manually operable to set said memory circuit means in said normal condition.
Claim 3
Dependent Claim
229 words
An apparatus as claimed in claim 1, further comprising an air tank for receiving and storing pressurized air, piping interconnecting said height adjustor means, said air compressor means and said air tank, first normally closed valve means in said piping for normally isolating said height adjustor means from said air compressor means and said air tank, second normally closed valve means in said piping for normally isolating said air tank from said height adjustor means and said air compressor means, third normally closed valve means in said piping for selectively being opened to the exterior atmosphere, said first, second and third valve means being connected to said actuatng circuit means to be opened thereby, height detector means for detecting the height of the vehicle and for supplying a signal representative thereof to said memory circuit means, whereby said memory circuit means activates said actuating circuit means to open selected of said first, second and third valve means to adjust the height of the vehicle, and pressure detector means for detecting the pressure within said air tank and for supplying a signal representative thereof to said memory circuit means, whereby, upon the detected pressure dropping below a predetermined value, said memory circuit means activates said actuating circuit means to open said second valve means and to operate said air compressor means, thereby to supply pressurized air to said air tank.
References Cited (Backward Citations)
US3602207A
Cited
US4266790A
Cited
JPS566022A
Cited
US4354693A
Cited
JPS5631907A
Cited
JPS5631906A
Cited
US4364574A
Cited
US4396202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |