Patent US4754949A successfully refreshed from Google Patents.
US4754949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuator for valve
Assignee: Individual
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Filing: 1987-09-08
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Granted: 1988-07-05
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Expires: 2007-09-08
Abstract
Abstract The present invention relates to an actuator for valve capable of controlling the opening and closing of a valve by rotating the valve body, as well as the flow amount of a fluid passing through the valve by adjusting the opening degree of the valve body.
Inventors
- 👤 Rikuo Fukamachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:17
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/53; F16K31/535; F16K31/02; F16K31/04; F16K31/041; F16K31/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
In an actuator for valve (1) for opening and closing a valve (A) by rotating an output shaft (2) connected to a rotary shaft of the body of said valve (A) by 90° in forward and reverse directions by a reversible rotary motor (3), said actuator for valve (1) comprising: a rotary shaft (4) pivoted thereto on the extension line of the axis of said output shaft (2), said rotary shaft (4) adapted to be rotated by said motor (3); gears (6) meshed with a gear (5) integrally secured to said rotary shaft (4); plates (7) pivoted to said rotary shaft (4) for pivotally supporting said gears (6) at the shafts (6 1 ) thereof; an internal gear (8) having inner peripheral teeth (8 1 ) meshed with said gear (6), and integrally secured to said output shaft (2); an internal gear (9) having inner peripheral teeth (9 1 ) commonly meshed with said gear (6), and pivoted to said rotary shaft (4), the number of said inner peripheral teeth (9 1 ) being different from the number of said inner peripheral teeth (8 1 ); and a regulating member (10) for preventing said internal gear (9) from being rotated.
Claim 2
Dependent Claim
200 words
In an actuator for valve (1) for opening and closing a valve (A) by rotating an output shaft (2) connected to a rotary shaft of the body of said valve (A) by 90° in forward and reverse directions by a reversible rotary motor (3), said actuator for valve (1) comprising: a rotary shaft (4) pivoted thereto on the extension line of the axis of said output shaft (2), said rotary shaft (4) adapted to be rotated by said motor (3); gears (6) meshed with a gear (5) integrally secured to said rotary shaft (4); plates (7) pivoted to said rotary shaft (4) for pivotally supporting said gears (6) at the shafts (6 1 ) thereof; an internal gear (8) having inner peripheral teeth (8 1 ) meshed with said gear (6), and integrally secured to said output shaft (2); an internal gear (9) having inner peripheral teeth (9 1 ) commonly meshed with said gear (6), and pivoted to said rotary shaft (4), the number of said inner peripheral teeth (9 1 ) being different from the number of said inner peripheral teeth (8 1 ); and a regulating member (10) for preventing said internal gear (9) from being rotated.
References Cited (Backward Citations)
US4526060A
Cited
US4621789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |