Patent US3729913A successfully refreshed from Google Patents.
US3729913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for joining together two continuous strands
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1971-03-01
•
Granted: 1973-05-01
•
Expires: 1991-03-01
Abstract
Abstract Apparatus for wrapping a thread about the overlapping portion of two continuous strands, e.g. two macrofil tire yarns, to form a joint, wherein a thread supply means is movable in a rotary path about the overlapping portion of the strands by a first drive means, and a second drive means is operable to import relative movement between the overlapping portion of the strands and the thread supply means longitudinally of the strands.
Inventors
- 👤 R Wray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:37
CPC Classifications
B; B65; B65H; B65H69/00; B65H69/06; B65H69/068; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
Apparatus for wrapping a thread about the overlapping portion of two continuous strands arranged in overlapping engagement, comprising: a. means for securely holding the overlapping portion of the strands and maintaining the overlapping portion under tension; b. thread supply means, c. first drive means operable to effect a rotary motion to the means for securely holding the overlapping portion strands, whereby said overlapping portion is rotated about is axis, and the thread supply means being maintained in a stationary position, and d. second drive means operable to effect relative movement between the overlapping portion of the strands and the thread supply means in the direction of the axis of the overlapping portion of the strands.
Claim 2
Dependent Claim
115 words
Apparatus for wrapping a thread about the overlapping portion of two continuous strands arranged in overlapping engagement, comprising: a. means for securely holding the overlapping portion of the strands and maintaining the overlapping portion under tension; b. thread supply means, c. first drive means operable to effect a rotary motion to the means for securely holding the overlapping portion strands, whereby said overlapping portion is rotated about is axis, and the thread supply means being maintained in a stationary position, and d. second drive means operable to effect relative movement between the overlapping portion of the strands and the thread supply means in the direction of the axis of the overlapping portion of the strands.
Claim 3
Dependent Claim
32 words
Apparatus according to claim 1, wherein the thread supply means is a bobbin of thread which is freely rotatably mounted on the apparatus so that the thread may be readily unwound therefrom.
Claim 4
Dependent Claim
24 words
Apparatus according to claim 1, wherein a pair of spaced-apart, screw clamps constitute the means for securely holding the overlapping portion of the strands.
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |