Swivel couplings for use in breathing or anaesthetic or other medical apparatus
Abstract
Abstract A SWIVEL COUPLING FOR COUPLING TUBULAR PARTS OF A BREATHING OR OTHER MEDICAL APPARATUS, COMPRISING COOPERATING TUBULAR COMPONENTS AT LEAST THE COUPLING END PORTIONS OF WHICH ARE OF A SEMI-RIGID RUBBER OR RUBBER-LIKE MATERIAL, ONE OF SAID COMPONENTS HAVING A MALE END PORTION AND THE OTHER HAVING A FEMALE END PORTION, A PROJECTING ANNULAR RIB OR BEAD ON ONE OF SAID PORTIONS PRODUCED BY INSETTING A SOLID OR RIGID RING INTO A PERIPHERAL SURFACE OR INTO A PERIPHERAL GROOVE OF SAID PORTION AND THE OTHER OF SAID PORTIONS HAVING A COOPERATING GROOVE, THE COMPONENTS HAVING BEEN SNAPPED TOGETHER AXIALLY TO ENGAGE THE RIB OR BEAD OF THE ONE COMPONENT INTO THE GROOVE OF THE OTHER COMPONENT AND AXIALLY RETAINED RELATIVELY TO ONE ANOTHER WITH THE FEMALE PORTION FORMING A BEARING ROTATABLY SUPPORTING THE MALE COMPONENT.
Inventors
- 👤 Robert Hans Muller
Bibliographic Details
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |