US3989232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air damped seating for devices and vehicles
Assignee: Jenoptik AG
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Filing: 1975-04-11
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Granted: 1976-11-02
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Expires: 1995-04-11
Abstract
Abstract An air damped seating particularly for devices and vehicles comprising a control chamber, an air chamber, both of variable volume, and a damping duct. The control chamber is provided with an air inlet flange and a valve, and is connected to the air chamber by a connection pipe. The damping duct is connected with one end portion to an air outlet opening of the air chamber and is tightly sealed on its other end portion. The length of the duct is defined by its radius, the excitation frequency of the oscillation to be damped, and by the mass to be damped, which is in connection with the chambers.
Inventors
- 👤 Manfred Steinbach
- 👤 Karl-Heinz Wesslau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:38
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/04; B60G17/052; B60G13/00; B60G13/02; B60G13/06; B60G13/10; F; F16; F16F; F16F15/00; F16F15/02; F16F15/023; F16F15/0232; F16F9/00; F16F9/02; F16F9/04; F16F9/0472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
An air damped seating particularly for devices and vehicles comprising a control chamber including an air inlet flange, a valve and an air outlet opening the volume of said chamber being variable, an air chamber having an air inlet opening and an air outlet flange, the volume of said air chamber being variable, a connection pipe being arranged between said air outlet opening and said air inlet opening, and a damping duct being connected with one end portion to said air outlet flange, the other end portion being sealed, the length of said damping duct being at least 10 3 times the diameter thereof, the volume of said damping duct being at least one tenth of the volume of said air chamber.
Claim 2
Dependent Claim
122 words
An air damped seating particularly for devices and vehicles comprising a control chamber including an air inlet flange, a valve and an air outlet opening the volume of said chamber being variable, an air chamber having an air inlet opening and an air outlet flange, the volume of said air chamber being variable, a connection pipe being arranged between said air outlet opening and said air inlet opening, and a damping duct being connected with one end portion to said air outlet flange, the other end portion being sealed, the length of said damping duct being at least 10 3 times the diameter thereof, the volume of said damping duct being at least one tenth of the volume of said air chamber.
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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |