US4249434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hackle clamp
Assignee: Individual
•
Filing: 1979-06-07
•
Granted: 1981-02-10
•
Expires: 1999-06-07
Abstract
Abstract An effective and inexpensive hackle clamp comprising a loop of flat spring wire having free ends extending from the loop, the free ends being flatly fastened together inwardly from the terminal ends thereof forming a clamp which is easily opened by squeezing the sides of the flat wire in the loop area.
Inventors
- 👤 Joseph Doiron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:01
CPC Classifications
B; B25; B25B; B25B9/00; B25B9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A fly tyer's hackle clamp comprising a length of spring wire in the form of a simple loop having the ends thereof in close juxtaposition and flatly contacting each other in clamping relationship, a rivet holding the wire in the form of a loop and also holding the clamping ends generally flatwise together in clamping relation, said rivet being located inwardly of the terminal ends of the clamping ends, the rivet having an unimpeded shank longer than the combined thicknesses of the two clamping ends and a head at each end of the shank holding the spring wire material out of contacting relation at said rivet, the spring wire material being in contacting relation at the side of the rivet opposite the clamping ends when lateral inward pressure is applied to the loop, the point of contact forming a fulcrum to force the clamping ends apart.
Claim 2
Dependent Claim
146 words
A fly tyer's hackle clamp comprising a length of spring wire in the form of a simple loop having the ends thereof in close juxtaposition and flatly contacting each other in clamping relationship, a rivet holding the wire in the form of a loop and also holding the clamping ends generally flatwise together in clamping relation, said rivet being located inwardly of the terminal ends of the clamping ends, the rivet having an unimpeded shank longer than the combined thicknesses of the two clamping ends and a head at each end of the shank holding the spring wire material out of contacting relation at said rivet, the spring wire material being in contacting relation at the side of the rivet opposite the clamping ends when lateral inward pressure is applied to the loop, the point of contact forming a fulcrum to force the clamping ends apart.
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) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |