Patent US3273596A successfully refreshed from Google Patents.
US3273596A
Expired / Lapsed
US
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Hydraulic pulsation absorber
Assignee: —
•
Filing: —
•
Granted: 1966-09-20
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:10
CPC Classifications
F; F23; F23K; F23K5/00; F23K5/02; F23K5/04; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A HYDRAULIC SYSTEM HAVING A CONDUIT HAVING A DIAMETER OF THE ORDER OF 3/8 TO 1/2 INCH AND A PUMP CONNECTED TO THE CONDUIT, OPERATING OF THE PUMP PRODUCING SONIC VIBRATIONS IN THE AUDIBLE FREQUENCY RANGE IN THE LIQUID AND THE CONDUIT, A DEVICE FOR DAMPENING SAID VIBRATIONS AND RENDERING THEM SUBSTANTIALLY INAUDIBLE COMPRISING A CUSHION MEMBER IN THE FORM OF AN ELONGATED TUBE COMPOSED OF A RESILIENT DEFORMABLE ELASTOMERIC MATERIAL SEALED AT SPACED POINTS TO PROVIDE A CLOSED ELONGATED CUSHIONING CHAMBER, SAID CUSHIONING CHAMBER CONTAINING A GAS AT APPROXIMATELY ATMOSPHERIC PRESSURE, THE OUTER DIAMETER OF THE TUBE BEING SUCH AS TO PROVIDE A CLEARANCE BETWEEN THE EXTERIOR OF THE TUBULAR CUSHION MEMBER AND THE INTERIOR OF THE CONDUIT, AND MEANS FOR RESILIENTLY MOUNTING THE CUSHION MEMBER IN THE CONDUIT ADJACENT THE POINT OF ATTACHMENT OF THE CONDUIT TO THE PUMP.
Claim 2
Dependent Claim
142 words
IN A HYDRAULIC SYSTEM HAVING A CONDUIT HAVING A DIAMETER OF THE ORDER OF 3/8 TO 1/2 INCH AND A PUMP CONNECTED TO THE CONDUIT, OPERATING OF THE PUMP PRODUCING SONIC VIBRATIONS IN THE AUDIBLE FREQUENCY RANGE IN THE LIQUID AND THE CONDUIT, A DEVICE FOR DAMPENING SAID VIBRATIONS AND RENDERING THEM SUBSTANTIALLY INAUDIBLE COMPRISING A CUSHION MEMBER IN THE FORM OF AN ELONGATED TUBE COMPOSED OF A RESILIENT DEFORMABLE ELASTOMERIC MATERIAL SEALED AT SPACED POINTS TO PROVIDE A CLOSED ELONGATED CUSHIONING CHAMBER, SAID CUSHIONING CHAMBER CONTAINING A GAS AT APPROXIMATELY ATMOSPHERIC PRESSURE, THE OUTER DIAMETER OF THE TUBE BEING SUCH AS TO PROVIDE A CLEARANCE BETWEEN THE EXTERIOR OF THE TUBULAR CUSHION MEMBER AND THE INTERIOR OF THE CONDUIT, AND MEANS FOR RESILIENTLY MOUNTING THE CUSHION MEMBER IN THE CONDUIT ADJACENT THE POINT OF ATTACHMENT OF THE CONDUIT TO THE PUMP.
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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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |