US3086518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic intermittent traction device
Assignee: Individual
•
Filing: 1960-07-11
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Granted: 1963-04-23
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Norman L Barlow
- 👤 Carash William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:15
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0218; A61H2001/0233
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
181 words
A TRACTION DEVICE COMPRISING: A FRAME ADAPTED TO REST ON A FLOOR SURFACE; A TRACTION CYLINDER MOUNTED ON SAID FRAME, A PISTON DISPOSED IN SAID CYLINDER FOR RECIPROCATING MOVEMENT THEREIN, A PISTON ROD SECURED TO SAID PISTON FOR MOVEMENT THEREWITH, MEANS ON SAID PISTON ROD FOR SECURING A TRACTION HARNESS THERETO; A FLUID PUMP; MEANS FLUIDLY CONNECTING THE DISCHARGE OF SAID PUMP TO ONE END OF SAID CYLINDER AND FLUIDLY CONNECTING THE OTHER END OF SAID CYLINDER TO THE INTAKE SIDE OF SAID PUMP WHEREBY PUMP PRESSURE WILL CAUSE MOVEMENT OF SAID PISTON AND ROD; MEANS RESPONSIVE TO A PREDETERMINED AMOUNT OF SAID PISTON AND ROD MOVEMENT FOR REVERSING THE FLUID CONNECTION OF SAID CYLINDER TO SAID PUMP TO REVERSE THE DIRECTION OF MOVEMENT OF SAID PISTON AND ROD; BUMPER MEANS MOUNTED ON SAID FRAME FOR ENGAGING A TRACTION TABLE TO HOLD SAID FRAME A DESIRED DISTANCE FROM SAID TABLE, SAID BUMPER MEANS COMPRISING A CYLINDER SAID TABLE, SAID BUMPER MEANS COMPRISING A CYLINDER MOUNTED ON SAID FRAME, A PISTON MOUNTED IN SAID BUMPER CYLINDER FOR RECIPROCATING MOVEMENT THEREIN; A BUMPER
References Cited (Backward Citations)
US2910061A
Cited
US2773499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |