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US4146990A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety catch

Assignee: Woodstream Corp
•
Filing: 1977-02-02
•
Granted: 1979-04-03
•
Expires: 1997-02-02
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Abstract

Abstract A safety catch for a rotating frame animal trap of round wire stock. The trap has two similar frames each frame having jaw forming sides and ends extending between the sides to support the jaws. The catch comprises a helix of an internal diameter about equal to the external diameter of the round wire stock of the frame so that the helix can fit around a first frame of the trap. The spacing of the coils of the helix is at least equal to the diameter of the wire stock. A hook extending outwardly from the helix to be able to engage, when the catch is in its useful position on a set trap, the second frame of the trap to prevent rotation of the frames. The catch is easy to install, even in a manufactured trap, unlike prior art safety catches.

Inventors

  • 👤 Frank Conibear

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 04:01
CPC Classifications
A; A01; A01M; A01M23/00; A01M23/24; A01M23/26

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 109 words
In combination, a rotating frame animal trap of round wire stock, the trap having two similar frames each frame having jaw forming sides and ends extending between the sides to support the jaws, and a safety catch comprising: a helix of an internal diameter about equal to the external diameter of the round wire stock of the frame, the helix fitting around a first frame of the trap, the spacing of the coils of the helix being at least equal to the diameter of the wire stock; and a hook extending outwardly from the helix for engaging the second frame of the trap to prevent rotation of the frames.
Claim 2
Dependent Claim 109 words
In combination, a rotating frame animal trap of round wire stock, the trap having two similar frames each frame having jaw forming sides and ends extending between the sides to support the jaws, and a safety catch comprising: a helix of an internal diameter about equal to the external diameter of the round wire stock of the frame, the helix fitting around a first frame of the trap, the spacing of the coils of the helix being at least equal to the diameter of the wire stock; and a hook extending outwardly from the helix for engaging the second frame of the trap to prevent rotation of the frames.
Claim 3
Dependent Claim 45 words
A combination as claimed in claim 1 in which the internal diameter of said helix is only slightly greater than the external diameter of the round wire stock so that the safety catch can be frictionally retained in any desired position on the first frame.
Claim 4
Dependent Claim 27 words
A combination as claimed in claim 1 wherein said safety catch is formed from one piece, with the hook extending outwardly from one end of the helix.

References Cited (Backward Citations)

NL12694C Cited
US750782A Cited
GB189812954A Cited
US873027A Cited
US1633792A Cited
US1711419A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-04-02 1982-10-02 1983-04-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-04-02 1986-10-02 1987-04-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-04-02 1990-10-02 1991-04-03 $7700.00 Window Closed / Lapsed

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