US4240223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal trap
Assignee: MEDVETZ EDWARD J
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Filing: 1979-11-15
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Granted: 1980-12-23
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Expires: 1999-11-15
Abstract
Abstract A pan-type animal trap having a frame, a pair of jaws pivotally mounted on the frame and spring loaded arms pivotally mounted on the frame in cooperating relationship with the jaws to close the jaws. A pan pivotally mounted on the frame and located between the jaws when the jaws are open. A dog pivotally mounted on the frame overlying one of the jaws when the jaws are open and having a free end located under an end of the pan adjacent to the pivotal mounting of the pan. The free end of the dog and the end of the pan under which the free end of the dog is located having openings which are aligned when the free end of the dog is located below the end of the pan, and a frangible shear pin extending through the aligned openings to hold the pan and the dog together and provide the desired pan tension when the jaws are open.
Inventors
- 👤 Edward J. Medvetz
- 👤 Rudolph M. Yandrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:25
CPC Classifications
A; A01; A01M; A01M23/00; A01M23/24; A01M23/26
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
152 words
In an animal trap having a frame, a pair of jaws rotatably mounted on said frame, spring means on said frame to urge said jaws toward each other from the set position, a pan located between said jaws when said jaws are in the set position, means pivotally mounting said pan on said frame, a dog adapted to contact said pan and hold said jaws in the set position and means pivotally mounting said dog on said frame, the improvement comprising an opening formed in said pan and a corresponding opening formed in said dog aligned with said opening in said pan when said pan and said dog are in contact when the trap is in the set position and a frangible shear pin extending through said openings in said pan and said dog to maintain contact between said pan and said dog, whereby a controlled and adjustable trigger arrangement is provided.
Claim 2
Dependent Claim
152 words
In an animal trap having a frame, a pair of jaws rotatably mounted on said frame, spring means on said frame to urge said jaws toward each other from the set position, a pan located between said jaws when said jaws are in the set position, means pivotally mounting said pan on said frame, a dog adapted to contact said pan and hold said jaws in the set position and means pivotally mounting said dog on said frame, the improvement comprising an opening formed in said pan and a corresponding opening formed in said dog aligned with said opening in said pan when said pan and said dog are in contact when the trap is in the set position and a frangible shear pin extending through said openings in said pan and said dog to maintain contact between said pan and said dog, whereby a controlled and adjustable trigger arrangement is provided.
Claim 3
Dependent Claim
25 words
The improvement set forth in claim 1 wherein at least one of said openings in said pan and in said dog is an elongated slot.
Claim 4
Dependent Claim
30 words
The improvement set forth in claim 1 wherein said pan has a contact portion and a neck portion and said opening in said pan is formed in said neck portion.
Claim 5
Dependent Claim
57 words
The improvement set forth in claim 3 wherein the opening in said neck portion is an elongated slot and wherein said dog has a free end spaced from said means pivotally mounting said dog on said frame, said free end of said dog being located below said elongated slot when the trap is in the set position.
Claim 6
Dependent Claim
88 words
The improvement as set forth in claim 1 wherein said pan has a neck portion adjacent to said means pivotally mounting said pan on said frame, said dog having a free end spaced from said means pivotally mounting said dog on said frame, said neck portion of said pan overlying said free end of said dog when said jaws are open in the set position, said opening in said pan being formed in said neck portion and said opening in said dog being formed in said free end.
Claim 7
Dependent Claim
24 words
The improvement set forth in claim 5 wherein at least one of said openings in said pan and said dog is an elongated slot.
Claim 8
Dependent Claim
113 words
A trap having at least one member adapted to contact and hold an animal, operative means to move said member from a set position to a closed position, a trigger arrangement for holding said operative means when said member is in a set position, said trigger arrangement including restraining means to restrain movement of said operative means when said member is in a set position, and frangible shear pin cooperating with said restraining means when said restraining means restrains movement of said operative member, whereby application of force to said restraining means breaks said shear pin to permit said operative means to move said member from a set position to a closed position.
Claim 9
Dependent Claim
113 words
A trap having at least one member adapted to contact and hold an animal, operative means to move said member from a set position to a closed position, a trigger arrangement for holding said operative means when said member is in a set position, said trigger arrangement including restraining means to restrain movement of said operative means when said member is in a set position, and frangible shear pin cooperating with said restraining means when said restraining means restrains movement of said operative member, whereby application of force to said restraining means breaks said shear pin to permit said operative means to move said member from a set position to a closed position.
Claim 10
Dependent Claim
196 words
A trap having a frame, means mounted on said frame to firmly grasp and hold an animal, spring means on said frame to move said means for grasping an animal from a set position to a closed position, a pan, means pivotally mounting said pan on said frame, a dog adapted to contact said pan and hold said means for grasping an animal in a set position and means pivotally mounting said dog on said frame, an opening formed in a portion of said pan and a corresponding opening formed in a portion of said dog and aligned with said opening in said pan when said pan and said dog are in contact when the trap is in a set position, and a frangible shear pin extending through said opening in said pan and said opening in said dog when the trap is in a set position to maintain contact between said pan and said dog, whereby a controlled and adjustable trigger mechanism is provided to permit movement of said means for grasping an animal from an open position to a closed position when sufficient force is applied to said pan to break said shear pin.
Claim 11
Dependent Claim
196 words
A trap having a frame, means mounted on said frame to firmly grasp and hold an animal, spring means on said frame to move said means for grasping an animal from a set position to a closed position, a pan, means pivotally mounting said pan on said frame, a dog adapted to contact said pan and hold said means for grasping an animal in a set position and means pivotally mounting said dog on said frame, an opening formed in a portion of said pan and a corresponding opening formed in a portion of said dog and aligned with said opening in said pan when said pan and said dog are in contact when the trap is in a set position, and a frangible shear pin extending through said opening in said pan and said opening in said dog when the trap is in a set position to maintain contact between said pan and said dog, whereby a controlled and adjustable trigger mechanism is provided to permit movement of said means for grasping an animal from an open position to a closed position when sufficient force is applied to said pan to break said shear pin.
Claim 12
Dependent Claim
80 words
A trigger arrangement for use in a trap, said trigger arrangement including a first member with an opening formed the rein and having a contact surface, a restraining member in cooperative relationship with said first member and a frangible shear pin extending through said opening in said first member, whereby application of a predetermined force to said contact surface of said first member breaks said shear pin and terminates the cooperative relationship between said first member and said restraining member.
Claim 13
Dependent Claim
80 words
A trigger arrangement for use in a trap, said trigger arrangement including a first member with an opening formed the rein and having a contact surface, a restraining member in cooperative relationship with said first member and a frangible shear pin extending through said opening in said first member, whereby application of a predetermined force to said contact surface of said first member breaks said shear pin and terminates the cooperative relationship between said first member and said restraining member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |