Patent US4945590A successfully refreshed from Google Patents.
US4945590A
Expired / Lapsed
US
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Valve for fluid mat and apparatus for controlling an attitude assumed by fluid mat
Assignee: Ogura Jewel Ind Co Ltd
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Filing: 1989-04-06
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Granted: 1990-08-07
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Expires: 2009-04-06
Abstract
Abstract A valve in the form of a solenoid valve includes a valve seat made of magnetic material in which a solenoid is received, and an inner diameter part of the value seat serves as a passage through which fluid flows. The valve is used for controlling an attitude assumed by an air mat. A valve assembly comprising the first-mentioned valve and an auxiliary valve may be used for the air mat.
Inventors
- 👤 Junshiro Ogura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:14
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F16K31/0651
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
An apparatus for controlling an attitude assumed by an air mat having a plurality of bags comprising: a first air discharging chamber and a first air feeding chamber both of which are communicated with a pump, a plurality of secondary air discharging and feeding chambers communicating with said first air discharging chamber and said first air feeding chamber, respectively, via valves, each of said secondary air discharging and feeding chambers being formed with a port which is communicated with one of said bags, said secondary air discharging and feeding chambers being arranged between said first air discharging chamber and said first air feeding chamber, said secondary air discharging and feeding chambers being connected to one another in a side-by-side relationship with a partition interposed between the adjacent secondary air discharging and feeding chambers, and a plurality of valves, each in the form of a solenoid valve disposed on said first air discharge chamber and said first air feeding chamber.
Claim 2
Independent Claim
159 words
An apparatus for controlling an attitude assumed by an air mat having a plurality of bags comprising: a first air discharging chamber and a first air feeding chamber both of which are communicated with a pump, a plurality of secondary air discharging and feeding chambers communicating with said first air discharging chamber and said first air feeding chamber, respectively, via valves, each of said secondary air discharging and feeding chambers being formed with a port which is communicated with one of said bags, said secondary air discharging and feeding chambers being arranged between said first air discharging chamber and said first air feeding chamber, said secondary air discharging and feeding chambers being connected to one another in a side-by-side relationship with a partition interposed between the adjacent secondary air discharging and feeding chambers, and a plurality of valves, each in the form of a solenoid valve disposed on said first air discharge chamber and said first air feeding chamber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |