US3176534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Worm and wheel unit
Assignee: Theta Instrument Corp
•
Filing: 1961-04-12
•
Granted: 1965-04-06
•
Expires: 1981-04-12
Abstract
No abstract record available.
Inventors
- 👤 Rice Edgar
- 👤 Handelman Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:25
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/06; H03J1/14; F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/16; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828; Y10T74/1987; Y10T74/19893; Y10T74/19898; Y10T74/19907; Y10T74/19949; Y10T74/19953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A WORM AND WHEEL UNIT COMPRISING, IN COMBINATION, A WORM OF HARD MATERIAL HAVING A THREAD SURFACE THEREON, MEANS FOR SUPPORTING SAID WORM FOR ROTATION ABOUT ITS AXIS, A WHEEL OF PLASTICALLY AND ELASTICALLY DEFORMABLE MATERIAL SUBSTANTIALLY SOFTER THAN SAID WORM, MEANS FOR SUPPORTING SAID WHEEL FOR ROTATION ABOUT ITS AXIS AND IN FORCEFUL ENGAGEMENT WITH SAID WORM, THE RIM OF SAID WHEEL HAVING EMBOSSED TEETH THEREON FORMED BY SAID FORCEFUL ENGAGEMENT WITH SAID WORM, WHEREBY THE RIM IS PLASTICALLY AND ELASTICALLY DEFORMED INITIALLY AND THEREAFTER HAS TEETH RESILIENTLY MESHING WITH THE THREAD OF SAID WORM BY REASON OF THE CIRCUMFERENTIALLY DIRECTED ELASTICITY REMAINING IN SAID PLASTIC MATERIAL AFTER EMBOSSING.
Claim 2
Dependent Claim
110 words
A WORM AND WHEEL UNIT COMPRISING, IN COMBINATION, A WORM OF HARD MATERIAL HAVING A THREAD SURFACE THEREON, MEANS FOR SUPPORTING SAID WORM FOR ROTATION ABOUT ITS AXIS, A WHEEL OF PLASTICALLY AND ELASTICALLY DEFORMABLE MATERIAL SUBSTANTIALLY SOFTER THAN SAID WORM, MEANS FOR SUPPORTING SAID WHEEL FOR ROTATION ABOUT ITS AXIS AND IN FORCEFUL ENGAGEMENT WITH SAID WORM, THE RIM OF SAID WHEEL HAVING EMBOSSED TEETH THEREON FORMED BY SAID FORCEFUL ENGAGEMENT WITH SAID WORM, WHEREBY THE RIM IS PLASTICALLY AND ELASTICALLY DEFORMED INITIALLY AND THEREAFTER HAS TEETH RESILIENTLY MESHING WITH THE THREAD OF SAID WORM BY REASON OF THE CIRCUMFERENTIALLY DIRECTED ELASTICITY REMAINING IN SAID PLASTIC MATERIAL AFTER EMBOSSING.
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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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |