US3256594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring compressing tool
Assignee: Individual
•
Filing: 1964-07-10
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Granted: 1966-06-21
•
Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Eugene C Howard
- 👤 Dennis H Holbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:58
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/12; F16F1/122; B; B25; B25B; B25B27/00; B25B27/14; B25B27/30; B25B27/302; B25B27/304; B60; B60G; B60G2206/00; B60G2206/01; B60G2206/90; B60G2206/92; B60G2206/921; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53613; Y10T29/53622
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
A COMPRESSION TOOL FOR A HELICAL COMPRESSION SPRING MOUNTED BETWEEN END SUPPORTS AT LEAST ONE OF WHICH HAS AN APERTURE THEREIN PROVIDING AXIAL ACCESS TO THE INTERIOR OF SAID SPRING, SAID TOOL COMPRISING: (A) A PAIR OF PRESSURE PLATES ADAPTED TO BE INSERTED TRANSVERSELY INTO SAID SPRING BETWEEN THE CONVOLUTIONS THEREOF SO AS TO BE SPACED APART LONTIDUTINALLY OF SAID SPRING, EACH OF SAID PRESSURE PLATES INCLUDING A DISC OF SMALLER DIAMETER THAN THE INTERNAL DIAMETER OF SAID SPRING, A FLANGE AFFIXED PERIPHERALLY TO SAID DISC AND HAVING AN OUTER DIAMETER GREATER THAN THE INTERNAL DIAMETER OF SAID SPRING, SAID FLANGE BEING HELICALLY FORMED ABOUT THE AXIS OF SAID DISC AND BEING OF LESS THAN 360 BUT MORE THAN 180 DEGREES IN ANGULAR EXTENT, AND A LIP EXTENDING AROUND THE ENTIRE ANGULAR EXTENT OF SAID FLANGE AND PROJECTING TOWARD THE OTHER OF SAID PRESSURE PLATES IN A DIRECTION PARALLEL TO THE DISC AXIS, SAID LIP HAVING A DIAMETER LESS THAN THE INTERNAL DIAMETER OF SAID SPRING, AND (B) AN ELONGATED NUT AND SCREW ASSEMBLY ADAPTED TO BE INSERTED AXIALLY INTO SAID SPRING THROUGH SAID APERTURE, THE NUT AND SCREW OF SAID ASSEMBLY BEING DETACHABLY INTERCONNECTED RESPECTIVELY WITH SAID TWO PRESSURE PLATES AND SECURED AGAINST AXIAL MOVEMENT RELATIVE THERETO IN A DIRECTION TOWARD THE OTHER OF SAID PRESSURE PLATES, SAID NUT AND SCREW BEING ONE RO-
Claim 2
Dependent Claim
225 words
A COMPRESSION TOOL FOR A HELICAL COMPRESSION SPRING MOUNTED BETWEEN END SUPPORTS AT LEAST ONE OF WHICH HAS AN APERTURE THEREIN PROVIDING AXIAL ACCESS TO THE INTERIOR OF SAID SPRING, SAID TOOL COMPRISING: (A) A PAIR OF PRESSURE PLATES ADAPTED TO BE INSERTED TRANSVERSELY INTO SAID SPRING BETWEEN THE CONVOLUTIONS THEREOF SO AS TO BE SPACED APART LONTIDUTINALLY OF SAID SPRING, EACH OF SAID PRESSURE PLATES INCLUDING A DISC OF SMALLER DIAMETER THAN THE INTERNAL DIAMETER OF SAID SPRING, A FLANGE AFFIXED PERIPHERALLY TO SAID DISC AND HAVING AN OUTER DIAMETER GREATER THAN THE INTERNAL DIAMETER OF SAID SPRING, SAID FLANGE BEING HELICALLY FORMED ABOUT THE AXIS OF SAID DISC AND BEING OF LESS THAN 360 BUT MORE THAN 180 DEGREES IN ANGULAR EXTENT, AND A LIP EXTENDING AROUND THE ENTIRE ANGULAR EXTENT OF SAID FLANGE AND PROJECTING TOWARD THE OTHER OF SAID PRESSURE PLATES IN A DIRECTION PARALLEL TO THE DISC AXIS, SAID LIP HAVING A DIAMETER LESS THAN THE INTERNAL DIAMETER OF SAID SPRING, AND (B) AN ELONGATED NUT AND SCREW ASSEMBLY ADAPTED TO BE INSERTED AXIALLY INTO SAID SPRING THROUGH SAID APERTURE, THE NUT AND SCREW OF SAID ASSEMBLY BEING DETACHABLY INTERCONNECTED RESPECTIVELY WITH SAID TWO PRESSURE PLATES AND SECURED AGAINST AXIAL MOVEMENT RELATIVE THERETO IN A DIRECTION TOWARD THE OTHER OF SAID PRESSURE PLATES, SAID NUT AND SCREW BEING ONE RO-
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |