Patent US3272250A successfully refreshed from Google Patents.
US3272250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking nut
Assignee: Individual
•
Filing: 1965-06-15
•
Granted: 1966-09-13
•
Expires: 1985-06-15
Abstract
No abstract record available.
Inventors
- 👤 Hattan Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:59
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B37/00; F16B37/12; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/937; Y10S411/955; Y10S411/965; Y10S411/967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A LOCK NUT COMPRISING A CASE, AN ELONGATED THREAD ELEMENT OF RESILIENT SPRING MATERIAL LOCATED AT LEAST PARTIALLY WITHIN SAID CASE, SAID ELEMENT BEING COILED GENERALLY HELICALLY AND HAVING A RADIALLY INNER PORTION FORMING AN INTERNAL THREAD FOR ENGAGEMENT WITH A MATING SCREW, MEANS FORMING AN ESSENTIALLY HELICAL RAMP CARRIED BY SAID CASE AXIALLY INWARDLY OF SAID THREAD ELEMENT FOR TAKING AXIALLY INWARD FORCES THEREFROM AND HAVING A SHOULDER PREVENTING RELATIVE ROTATION OF SAID ELEMENT, A PLURALITY OF PRIMARY TURNS OF SAID THREAD ELEMENT BEING PERMANENTLY BONDED ESSENTIALLY RIGIDLY TO SAID CASE, AND TO ONE ANOTHER AD TO SAID RAMP, SAID THREAD ELEMENT HAVING A LOCKING PORTION AXIALLY OUTWARDLY BEYOND SAID PRIMARY TURNS IN A DIRECTION AWAY FROM SAID RAMP WHICH IS DEFORMED TO, AND NORMALLY RETURNS BY ITS OWN RESILIENCE
Claim 2
Dependent Claim
131 words
A LOCK NUT COMPRISING A CASE, AN ELONGATED THREAD ELEMENT OF RESILIENT SPRING MATERIAL LOCATED AT LEAST PARTIALLY WITHIN SAID CASE, SAID ELEMENT BEING COILED GENERALLY HELICALLY AND HAVING A RADIALLY INNER PORTION FORMING AN INTERNAL THREAD FOR ENGAGEMENT WITH A MATING SCREW, MEANS FORMING AN ESSENTIALLY HELICAL RAMP CARRIED BY SAID CASE AXIALLY INWARDLY OF SAID THREAD ELEMENT FOR TAKING AXIALLY INWARD FORCES THEREFROM AND HAVING A SHOULDER PREVENTING RELATIVE ROTATION OF SAID ELEMENT, A PLURALITY OF PRIMARY TURNS OF SAID THREAD ELEMENT BEING PERMANENTLY BONDED ESSENTIALLY RIGIDLY TO SAID CASE, AND TO ONE ANOTHER AD TO SAID RAMP, SAID THREAD ELEMENT HAVING A LOCKING PORTION AXIALLY OUTWARDLY BEYOND SAID PRIMARY TURNS IN A DIRECTION AWAY FROM SAID RAMP WHICH IS DEFORMED TO, AND NORMALLY RETURNS BY ITS OWN RESILIENCE
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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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |