Patent US3578031A successfully refreshed from Google Patents.
US3578031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hook-shaped gripper point
Assignee: FIRM OF JEAN GUSKEN
•
Filing: 1969-09-29
•
Granted: 1971-05-11
•
Expires: 1989-09-29
Abstract
Abstract A hook-shaped yarn takeup gripper point having a protuberance formed on a first side of the free leg of the hook, the end of the protuberance away from the tip of the gripper point forming a trailing edge which extends substantially perpendicular to a central plane passing through both the main leg and the free leg of the gripper point. A spring operated flap in the main leg holds a yarn against the free leg, and hence against the said edge.
Inventors
- 👤 Heinz Maassen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:20
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/12; D03D47/20; D03D47/23; D03D47/236
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
In a hook-shaped yarn takeup gripper point for tucking in weft yarn ends in gripper looms, the hook including a main leg and a free leg, and said gripper point including means for clamping the yarn end against the inside of the free leg of the hook, the improvement comprising a protuberance on a first side of the said free leg, said protuberance having an edge on the side thereof away from the tip of the gripper point, said edge extending outwardly from the first side of the gripper point, whereby yarn drawn through the hook passes along said first side, around said edge and across the inside of the free leg to a second side of the free leg.
Claim 2
Dependent Claim
120 words
In a hook-shaped yarn takeup gripper point for tucking in weft yarn ends in gripper looms, the hook including a main leg and a free leg, and said gripper point including means for clamping the yarn end against the inside of the free leg of the hook, the improvement comprising a protuberance on a first side of the said free leg, said protuberance having an edge on the side thereof away from the tip of the gripper point, said edge extending outwardly from the first side of the gripper point, whereby yarn drawn through the hook passes along said first side, around said edge and across the inside of the free leg to a second side of the free leg.
Claim 3
Dependent Claim
24 words
The invention of claim 1, wherein said edge is substantially perpendicular to a central plane of the hook passing through both of said legs.
Claim 4
Dependent Claim
39 words
The invention of claim 2, wherein said clamping means comprises a flap located in the main leg and urged by resilient means against the free leg to hold the yarn against said free leg and hence against said edge.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |