US3237644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valving mechanism
Assignee: Robertshaw Controls Co
•
Filing: 1962-09-07
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Granted: 1966-03-01
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Expires: 1982-09-07
Abstract
No abstract record available.
Inventors
- 👤 Roland D Beck
- 👤 Watari Hideo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:47
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/48; F15; F15B; F15B13/00; F15B13/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN COMBINATION, A READING HEAD HAVING A READING SURFACE INTERRUPTED BY A PLURALITY OF PASSAGE MEANS, A READING MEMBER HAVING ONE OPPOSED SIDE THEREOF DISPOSED AGAINST SAID READING SURFACE AND HAVING A CHANNEL MEANS ADAPTED TO INTERCONNECT TWO OF SAID PASSAGE MEANS TOGETHER, A COMPRESSIBLE MATERIAL HAVING ONE OPPOSED SIDE THEREOF DISPOSED AGAINST THE OTHER SIDE OF SAID READING MEMBER, A BACKING MEMBER DISPOSED AGAINST THE OTHER SIDE OF SAID COMPRESSIBLE MATERIAL AND HAVING SLOT MEANS, A DRIVE SHAFT PASSING THROUGH SAID READING HEAD, SAID READING MEMBER, SAID COMPRESSIBLE MATERIAL AND SAID BACKING MEMBER, AND A PIN CARRIED BY SAID DRIVE SHAFT AND DISPOSED IN SAID SLOT MEANS TO CAUSE ROTATION OF SAID READING MEMBER RELATIVE TO SAID READING SURFACE UPON ROTATION OF SAID DRIVE SHAFT, SAID PIN PRESSING SAID COMPRESSIBLE MATERIAL BETWEEN SAID BACKING MEMBER AND SAID READING MEMBER WHEREBY SAID COMPRESSED COMPRESSIBLE MATERIAL URGES SAID READING MEMBER INTO SEALING ENGAGEMENT WITH SAID READING SURFACE.
Claim 2
Dependent Claim
156 words
IN COMBINATION, A READING HEAD HAVING A READING SURFACE INTERRUPTED BY A PLURALITY OF PASSAGE MEANS, A READING MEMBER HAVING ONE OPPOSED SIDE THEREOF DISPOSED AGAINST SAID READING SURFACE AND HAVING A CHANNEL MEANS ADAPTED TO INTERCONNECT TWO OF SAID PASSAGE MEANS TOGETHER, A COMPRESSIBLE MATERIAL HAVING ONE OPPOSED SIDE THEREOF DISPOSED AGAINST THE OTHER SIDE OF SAID READING MEMBER, A BACKING MEMBER DISPOSED AGAINST THE OTHER SIDE OF SAID COMPRESSIBLE MATERIAL AND HAVING SLOT MEANS, A DRIVE SHAFT PASSING THROUGH SAID READING HEAD, SAID READING MEMBER, SAID COMPRESSIBLE MATERIAL AND SAID BACKING MEMBER, AND A PIN CARRIED BY SAID DRIVE SHAFT AND DISPOSED IN SAID SLOT MEANS TO CAUSE ROTATION OF SAID READING MEMBER RELATIVE TO SAID READING SURFACE UPON ROTATION OF SAID DRIVE SHAFT, SAID PIN PRESSING SAID COMPRESSIBLE MATERIAL BETWEEN SAID BACKING MEMBER AND SAID READING MEMBER WHEREBY SAID COMPRESSED COMPRESSIBLE MATERIAL URGES SAID READING MEMBER INTO SEALING ENGAGEMENT WITH SAID READING SURFACE.
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |