US3170337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw and nut assembly
Assignee: MONTGOMERY AND CO Inc
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Filing: 1964-03-19
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Granted: 1965-02-23
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Expires: 1984-03-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Francis M Linley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:01
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/2003; F16H25/2009; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18728
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
THE COMBINATION OF A CONTINUOUS SCREW AND A NUT HAVING AN AXIAL OPENING WHICH A CONTINUOUS SCREW THREAD MATING WITH AND SCREWED ONTO SAID SCREW, SAID NUT BEING PROVIDED WITH A HOLE EXTENDING SUBSTANTIALLY RADIALLY THROUGH THE SIDE OF THE NUT AND INTO SAID SCREW-THREADED OPENING, A BLOCK OF MATERIAL SLIDABLY MOUNTED IN SAID HOLE WITH ITS INNER END FLAT AND PARALLEL TO THE AXIS OF SAID SCREW THREADED OPENING AND FRICTIONALLY ENGAGING THE CRESTS OF A PLURALITY OF CONVOLUTIONS OF SAID SCREW, AND SPRING MEANS ON SAID NUT NORMALLY BIASING SAID BLOCK TOWARD AND INTO CONTACT WITH SAID SCREW, SO THAT THE PITCH DIAMETER OF THE SCREW WILL BE HELD IN FIRM YIELDING CONTACT WITH THE PITCH DIAMETER OF THE THREADED PORTION OF THE NUT, THEREBY ENSURING ACCURATE LINEAR RELATIONSHIP OF THE MATED PARTS ON THE PITCH DIAMETERS OF THE RESPECTIVE THREADS.
References Cited (Backward Citations)
US2430458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |