Patent US3335844A successfully refreshed from Google Patents.
US3335844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge seams for dryer felts and the like
Assignee: Scapa Blackburn Ltd
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Filing: 1966-07-05
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Granted: 1967-08-15
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Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Hindle Thomas
- 👤 John R Hindle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:42
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/08; D21F7/10; D03; D03D; D03D3/00; D03D3/04; F; F16; F16G; F16G3/00; F16G3/02; Y; Y10; Y10T; Y10T24/00; Y10T24/16; Y10T24/1668
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A CLIPPER SEAM FOR AN ENDLESS FELT COMPRISING A PLURALITY OF SIDE-BY-SIDE WIRE LOOPS EXTENDING FROM THE EDGES TO BE JOINED, THE LOOPS ON ONE EDGE BEING STAGGERED AND INTERLEAVED WITH RESPECT TO THOSE ON THE OTHER, AND TWO PINTLE WIRES THROUGH THE INTERLEAVED SETS OF LOOPS, THE SAID WIRES BEING MAINTAINED IN ROLLING CONTACT WITH EACH OTHER UNDER THE TENSION IN THE FELT, CHARACTERIZED IN THAT THE SHAPE OF THE LOOPS IN SIDE ELEVATION AND THE CROSSSECTION OF THE PINTLE WIRES ARE SUCH THAT THERE IS A WEDGING ACTION BETWEEN EACH WIRE AND THE RESPECTIVE SET OF LOOPS THEREBY TO HOLD THE WIRE NON-ROTATABLY IN SUCH LOOPS.
Claim 2
Dependent Claim
108 words
A CLIPPER SEAM FOR AN ENDLESS FELT COMPRISING A PLURALITY OF SIDE-BY-SIDE WIRE LOOPS EXTENDING FROM THE EDGES TO BE JOINED, THE LOOPS ON ONE EDGE BEING STAGGERED AND INTERLEAVED WITH RESPECT TO THOSE ON THE OTHER, AND TWO PINTLE WIRES THROUGH THE INTERLEAVED SETS OF LOOPS, THE SAID WIRES BEING MAINTAINED IN ROLLING CONTACT WITH EACH OTHER UNDER THE TENSION IN THE FELT, CHARACTERIZED IN THAT THE SHAPE OF THE LOOPS IN SIDE ELEVATION AND THE CROSSSECTION OF THE PINTLE WIRES ARE SUCH THAT THERE IS A WEDGING ACTION BETWEEN EACH WIRE AND THE RESPECTIVE SET OF LOOPS THEREBY TO HOLD THE WIRE NON-ROTATABLY IN SUCH LOOPS.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |