US3324812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shearing mechanism for tufting machines
Assignee: Callaway Mills Co
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Filing: 1965-02-05
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Granted: 1967-06-13
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Expires: 1985-02-05
Abstract
No abstract record available.
Inventors
- 👤 James M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:27
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A TUFTING MACHINE OF THE TYPE HAVING NEEDLES WHICH INSERT YARNS CARRIED THEREBY THROUGH A BACKING MATERIAL FOR FORMING LOOPS IN THE BACKING MATERIAL AND HAVING A SHEAR PLATE PROVIDED WITH APERTURES THROUGH WHICH THE LOOPS PROJECT, THE COMBINATION THEREWITH OF A PLURALITY OF BLADES, EACH OF SAID BLADES HAVING A CUTTING EDGE AT ONE END THEREOF AND LATERAL SIDES EXTENDING AWAY FROM SAID CUTTING EDGE, MEANS SUPPORTING SAID BLADES ADJACENT SAID SHEAR PLATE WITH THE CUTTING EDGES OF SAID BLADES FACING IN A COMMON DIRECTION TOWARD SAID APERTURES AND THE SIDES OF SAID BLADES IN MUTUALLY OVERLAPPING RELATION, AND MEANS FOR MOVING SAID BLADES ENDWISE IN SAID COMMON DIRECTION ACROSS SAID APERTURES IN CONTACT WITH SAID SHEAR PLATE FOR SEVERING A PORTION OF SAID LOOPS.
Claim 2
Dependent Claim
127 words
IN A TUFTING MACHINE OF THE TYPE HAVING NEEDLES WHICH INSERT YARNS CARRIED THEREBY THROUGH A BACKING MATERIAL FOR FORMING LOOPS IN THE BACKING MATERIAL AND HAVING A SHEAR PLATE PROVIDED WITH APERTURES THROUGH WHICH THE LOOPS PROJECT, THE COMBINATION THEREWITH OF A PLURALITY OF BLADES, EACH OF SAID BLADES HAVING A CUTTING EDGE AT ONE END THEREOF AND LATERAL SIDES EXTENDING AWAY FROM SAID CUTTING EDGE, MEANS SUPPORTING SAID BLADES ADJACENT SAID SHEAR PLATE WITH THE CUTTING EDGES OF SAID BLADES FACING IN A COMMON DIRECTION TOWARD SAID APERTURES AND THE SIDES OF SAID BLADES IN MUTUALLY OVERLAPPING RELATION, AND MEANS FOR MOVING SAID BLADES ENDWISE IN SAID COMMON DIRECTION ACROSS SAID APERTURES IN CONTACT WITH SAID SHEAR PLATE FOR SEVERING A PORTION OF SAID 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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |