US3106103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Worm
Assignee: Keystone Industries Inc
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Filing: 1961-07-03
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Granted: 1963-10-08
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 James T Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:11
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/22; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19823; Y10T74/1987; Y10T74/19893; Y10T74/19949; Y10T74/19953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A WORM, COMPRISING IN COMBINATION, A PLURALITY OF IDENTICAL UNITS, EACH UNIT CONSISTING OF A HUB HAVING A DIAMETER EQUAL TO THE DIAMETER OF THE WORM LESS TWICE THE DEPTH OF THE THREAD AND AN AXIAL LENGTH EQUAL TO THE PITCH OF THE THREAD TIMES A MULTIPLYING FACTOR OF A REGULAR FRACTION OR A WHOLE NUMBER PLUS A REGULAR FRACTION, EACH UNIT HAVING A THREAD THE AXIAL EXTENT OF THE PITCH LINE OF WHICH IS EQUAL TO THE LENGTH OF SAID HUB, SAID THREAD HAVING CIRCUMFERENTIALLY SPACED ENDS WITH RADIAL FACES, SAID THREAD FACES AT OPPOSITE ENDS OF SAID HUB HAVING ONE-HALF THEIR SURFACES OVERHANGING THE RESPECITVE ENDS OF HUB, AND A NONCIRCULAR APERTURE OF REGULAR GEOMETRIC SHAPE THROUGH SAID HUB AND ORIENTED WITH RESPECT TO SAID THREAD ENDS IN SUCH MANNER THAT WHEN A NUMBER OF SAID UNITS ARE ARRANGED WITH FACING THREAD ENDS IN ABUTTING RELATION SAID APERTURES WILL BE ALIGNED, THE GEOMETRIC SHAPE OF SAID APERTURE BEING SUCH THAT THE PRODUCT OF THE NUMBER OF FACES OF THE SHAPE AND THE MULTIPLYING FACTOR IS A WHOLE NUMBER, AN AXLE HAVING AN EXTERIOR SURFACE SHAPED COMPLEMENTARY TO SAID HUB APERTURES EXTENDING THROUGH SAID APERTURES, AND MEANS RESTRAINING SAID UNITS AGAINST AXIAL MOVEMENT ON SAID AXLE.
Claim 2
Dependent Claim
207 words
A WORM, COMPRISING IN COMBINATION, A PLURALITY OF IDENTICAL UNITS, EACH UNIT CONSISTING OF A HUB HAVING A DIAMETER EQUAL TO THE DIAMETER OF THE WORM LESS TWICE THE DEPTH OF THE THREAD AND AN AXIAL LENGTH EQUAL TO THE PITCH OF THE THREAD TIMES A MULTIPLYING FACTOR OF A REGULAR FRACTION OR A WHOLE NUMBER PLUS A REGULAR FRACTION, EACH UNIT HAVING A THREAD THE AXIAL EXTENT OF THE PITCH LINE OF WHICH IS EQUAL TO THE LENGTH OF SAID HUB, SAID THREAD HAVING CIRCUMFERENTIALLY SPACED ENDS WITH RADIAL FACES, SAID THREAD FACES AT OPPOSITE ENDS OF SAID HUB HAVING ONE-HALF THEIR SURFACES OVERHANGING THE RESPECITVE ENDS OF HUB, AND A NONCIRCULAR APERTURE OF REGULAR GEOMETRIC SHAPE THROUGH SAID HUB AND ORIENTED WITH RESPECT TO SAID THREAD ENDS IN SUCH MANNER THAT WHEN A NUMBER OF SAID UNITS ARE ARRANGED WITH FACING THREAD ENDS IN ABUTTING RELATION SAID APERTURES WILL BE ALIGNED, THE GEOMETRIC SHAPE OF SAID APERTURE BEING SUCH THAT THE PRODUCT OF THE NUMBER OF FACES OF THE SHAPE AND THE MULTIPLYING FACTOR IS A WHOLE NUMBER, AN AXLE HAVING AN EXTERIOR SURFACE SHAPED COMPLEMENTARY TO SAID HUB APERTURES EXTENDING THROUGH SAID APERTURES, AND MEANS RESTRAINING SAID UNITS AGAINST AXIAL MOVEMENT ON SAID AXLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |