US3581379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic o-ring applicator and method
Assignee: Individual
•
Filing: 1967-12-05
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Granted: 1971-06-01
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Expires: 1987-12-05
Abstract
Abstract A DEVICE ADAPTED FOR SEMI OR FULL AUTOMATIC OPERATION FOR THE POSITIONING OF O OR RETAINING RINGS UPON GROOVED SHAFTS, PINS AND THE LIKE, WHEREIN THE SAID RINGS ARE FED TO A RECIPROCATING SHUTTLE WHICH SUCCESSIVELY FEEDS THE SAME OVER A CONICAL, CONTINUOUSLY EXPANDING PASSAGEWAY, AND PNEUMATIC PRESSURE APPLIED THROUGH SAID PASSAGEWAY CAUSES THE RINGS TO EXPAND TO THE REQUIRED DISTANCE TO SNAP INTO THE GROOVES OF THE RECEIVING OBJECTS, THE LATTER BEING SEQUENTIALLY FED IN TIMED SEQUENCE TO THE LARGEST AND EGREES END OF THE PASSAGEWAY.
Inventors
- 👤 Martin E Drobilits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:03
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/08; B23P19/084; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/53; Y10T29/53613; Y10T29/5363; Y10T29/53657
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |