US3237232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for restraining critical bending of a resilient sweeper element
Assignee: Kershaw Manufacturing Co Inc
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Filing: 1964-05-11
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Granted: 1966-03-01
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 John D Holley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:41
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4041; A46; A46B; A46B13/00; A46B13/001; A46B3/00; A46B3/22; A46B9/00; A46B9/08; A46B9/12; A47L11/02; A47L11/10; A47L11/14; A47L11/18; E; E01; E01B; E01B27/00; E01B27/02; E01B27/023; E01B27/026; E01H; E01H5/00; E01H5/04; E01H5/08; E01H5/09; E01H5/092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN APPARATUS FOR RESTRAINING CRITICAL BENDING OF A RESILIENT TUBE-LIKE SWEEPER ELEMENT MOUNTED ADJACENT ONE END THEREOF TO A ROTATABLE CORE, (A) A FIRST NIPPLE MEMBER SECURED AT ONE END OF SAID ROTATABLE CORE WITH THE OTHER END THEREOF EXTENDING INWARDLY OF AND SECURED TO SAID ONE END OF THE SWEEPER ELEMENT, TO DEFINE A CRITICAL BEND POINT ON SAID SWEEPER ELEMENT ADJACENT THE OUTER END OF SAID FIRST NIPPLE MEMBER, (B) AN INNER RESILIENT TUBE-LIKE MEMBER OF A SIZE TO TELESCOPE INWARDLY OF SAID ONE END OF THE TUBE-LIKE SWEEPER ELEMENT AND EXTEND ACROSS THE CRITICAL BEND POINT OF SAID SWEEPER ELEMENT AND A SUBSTANTIAL DISTANCE BEYOND SAID CRITICAL BEND POINT, (C) A SECOND NIPPLE MEMBER EXTENDING INWARDLY OF AND SECURED TO SAID INNER RESILIENT TUBE-LIKE MEMBER ADJACENT SAID ONE END OF THE SWEEPER ELEMENT, TO (D) MEANS CONNECTING SAID SECOND NIPPLE MEMBER TO SAID FIRST NIPPLE MEMBER TO HOLD SAID INNER RESILIENT BEND POINT OF SAID SWEEPER ELEMENT AND EXTEND A SUBSTANTIAL DISTANCE BEYOND SAID CRITICAL BEND POINT.
Claim 2
Dependent Claim
170 words
IN APPARATUS FOR RESTRAINING CRITICAL BENDING OF A RESILIENT TUBE-LIKE SWEEPER ELEMENT MOUNTED ADJACENT ONE END THEREOF TO A ROTATABLE CORE, (A) A FIRST NIPPLE MEMBER SECURED AT ONE END OF SAID ROTATABLE CORE WITH THE OTHER END THEREOF EXTENDING INWARDLY OF AND SECURED TO SAID ONE END OF THE SWEEPER ELEMENT, TO DEFINE A CRITICAL BEND POINT ON SAID SWEEPER ELEMENT ADJACENT THE OUTER END OF SAID FIRST NIPPLE MEMBER, (B) AN INNER RESILIENT TUBE-LIKE MEMBER OF A SIZE TO TELESCOPE INWARDLY OF SAID ONE END OF THE TUBE-LIKE SWEEPER ELEMENT AND EXTEND ACROSS THE CRITICAL BEND POINT OF SAID SWEEPER ELEMENT AND A SUBSTANTIAL DISTANCE BEYOND SAID CRITICAL BEND POINT, (C) A SECOND NIPPLE MEMBER EXTENDING INWARDLY OF AND SECURED TO SAID INNER RESILIENT TUBE-LIKE MEMBER ADJACENT SAID ONE END OF THE SWEEPER ELEMENT, TO (D) MEANS CONNECTING SAID SECOND NIPPLE MEMBER TO SAID FIRST NIPPLE MEMBER TO HOLD SAID INNER RESILIENT BEND POINT OF SAID SWEEPER ELEMENT AND EXTEND A SUBSTANTIAL DISTANCE BEYOND SAID CRITICAL BEND POINT.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |