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US3823504A Expired / Lapsed US ⏱️ 0.0 years remaining

Humane animal trap

Assignee: Individual
•
Filing: 1973-01-19
•
Granted: 1974-07-16
•
Expires: 1993-01-19
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Abstract

Abstract A humane animal trap comprises an elongate generally rectangular housing formed of impervious material and having a spring urged trap door closing the front end thereof. A releaseable latch retains the trap door in an open or set position and is released by operation of a cam trigger. The trigger is connected to and is operated by a treadle plate. The housing is provided with a valve which permits a user to introduce a predetermined amount of an anesthetizing fluid, such as chloroform or the like, into the housing for anesthetizing the trapped animal.

Inventors

  • 👤 M Dosch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 10:53
CPC Classifications
A; A01; A01M; A01M23/00; A01M23/16; A01M23/18

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 322 words
An animal trap comprising an elongate generally rectangular housing formed of air impervious material and having an open front end, said housing including substantially parallel side walls an upper wall and a top wall, a generally rectangular air impervious trap door, means hingedly connecting the trap door on said housing for vertical swinging movement of the door between opened and closed positions about a horizontal transverse axis located adjacent the upper portion of the housing, said trap door when in the closed position engaging the front end of said housing in sealing relation and when in the open position being disposed forwardly of the front end of said housing, resilient means engaging said housing and said Door to normally urge said door to the closed position, an elongate latch element having one end thereof pivotally connected to the inner surface of said door, a latch retaining member mounted in said housing and having a latch engaging element engaged by the other end of said latch element to releasably hold the door in an open position, a trigger cam shiftably mounted on said latch retaining member and underlying and engaging said latch element when the latch element is disposed in engaging relation with said latch engaging surface, a treadle plate pivotally mounted within said housing for pivotal movement about a horizontal transverse axis between release and set positions, an elongate actuating link having one end thereof pivotally connected with said treadle plate and having its other end pivotally connected with said trigger cam, for shifting the trigger cam to release said latch element from engaged relation with the engaging element when the treadle plate is depressed whereby said trap door will swing to the closed position, a valve on said housing intercommunicating the interior of the housing with the exterior, and an acutating handle for opening and closing said valve to permit introduction into the housing of an anesthetizing fluid such as chloroform.
Claim 2
Dependent Claim 322 words
An animal trap comprising an elongate generally rectangular housing formed of air impervious material and having an open front end, said housing including substantially parallel side walls an upper wall and a top wall, a generally rectangular air impervious trap door, means hingedly connecting the trap door on said housing for vertical swinging movement of the door between opened and closed positions about a horizontal transverse axis located adjacent the upper portion of the housing, said trap door when in the closed position engaging the front end of said housing in sealing relation and when in the open position being disposed forwardly of the front end of said housing, resilient means engaging said housing and said Door to normally urge said door to the closed position, an elongate latch element having one end thereof pivotally connected to the inner surface of said door, a latch retaining member mounted in said housing and having a latch engaging element engaged by the other end of said latch element to releasably hold the door in an open position, a trigger cam shiftably mounted on said latch retaining member and underlying and engaging said latch element when the latch element is disposed in engaging relation with said latch engaging surface, a treadle plate pivotally mounted within said housing for pivotal movement about a horizontal transverse axis between release and set positions, an elongate actuating link having one end thereof pivotally connected with said treadle plate and having its other end pivotally connected with said trigger cam, for shifting the trigger cam to release said latch element from engaged relation with the engaging element when the treadle plate is depressed whereby said trap door will swing to the closed position, a valve on said housing intercommunicating the interior of the housing with the exterior, and an acutating handle for opening and closing said valve to permit introduction into the housing of an anesthetizing fluid such as chloroform.
Claim 3
Dependent Claim 40 words
The trap as defined in claim 1 wherein said treadle plate is of generally rectangular configuration and is pivotally connected adjacent its front end to the sidewalls of said housing intermediate the front and the rear ends of the latter.
Claim 4
Dependent Claim 24 words
The trap as defined in claim 1, wherein said resilient means comprises a spring positioned externally of the door and exteriorly of the housing.
Claim 5
Dependent Claim 40 words
The trap as defined in claim 1 wherein said housing has an open rear end, a generally rectangular air impervious closure member engaging said rear end of the housing for closing the same in sealing relation and being removable therefrom.
Claim 6
Dependent Claim 77 words
The trap as defined in claim 4 wherein said trap door and said closure member each has a continuous flange on the front surface thereof which projects interiorly of the housing when the trap door and the closure member are in closing relation with said housing, said trap door and said closure member each having an annular sealing element on the side edges thereof and located exteriorly of the associated continuous flange for sealingly engaging the housing.
Claim 7
Dependent Claim 38 words
The trap door as defined in claim 1 wherein said latch retaining member is of elongate U-shaped construction and is secured to said top wall, said latch engaging element comprising a transverse wall on said latch retaining member.
Claim 8
Dependent Claim 15 words
The trap as defined in claim 6 wherein said trigger cam is of U-shaped construction.
Claim 9
Dependent Claim 314 words
An animal trap comprising an elongate housing formed of air impervious material and having an open front end, said housing including elongate opposed impervious wall portions, a generally flat air impervious trap door, means hingedly connecting the trap door on said housing for vertical swinging movement of the door between opened and closed positions about a horizontal transverse axis located adjacent the upper portion of the housing, said trap door when in the closed position engaging the front end of said housing in sealing relation and when in the open position being disposed forwardly of the front end of said housing resilient means engaging said housing and said door to normally urge said door to the closed position, an elongate latch element having one end thereof pivotally connected to the inner surface of said door, a latch retaining member mounted in said housing and having a latch engaging element engaged by the other end of said latch element to releasably hold the door in an open position, a trigger cam shiftably mounted on said latch retaining member and underlying and engaging said latch element when the latch element is disposed in engaging relation with said latch engaging surface, a treadle plate pivotally mounted within said housing For pivotal movement about a horizontal transverse axis between release and set positions, an elongate actuating link having one end thereof pivotally connected with said treadle plate and having its other end pivotally connected with said trigger cam, for shifting the trigger cam to release said latch element from engaged relation with the engaging element when the treadle plate is depressed whereby said trap door will swing to the closed position, a valve on said housing intercommunicating the interior of the housing with the exterior and an actuating handle for opening and closing said valve to permit introduction into the housing of an anesthetizing fluid such as chloroform.
Claim 10
Dependent Claim 314 words
An animal trap comprising an elongate housing formed of air impervious material and having an open front end, said housing including elongate opposed impervious wall portions, a generally flat air impervious trap door, means hingedly connecting the trap door on said housing for vertical swinging movement of the door between opened and closed positions about a horizontal transverse axis located adjacent the upper portion of the housing, said trap door when in the closed position engaging the front end of said housing in sealing relation and when in the open position being disposed forwardly of the front end of said housing resilient means engaging said housing and said door to normally urge said door to the closed position, an elongate latch element having one end thereof pivotally connected to the inner surface of said door, a latch retaining member mounted in said housing and having a latch engaging element engaged by the other end of said latch element to releasably hold the door in an open position, a trigger cam shiftably mounted on said latch retaining member and underlying and engaging said latch element when the latch element is disposed in engaging relation with said latch engaging surface, a treadle plate pivotally mounted within said housing For pivotal movement about a horizontal transverse axis between release and set positions, an elongate actuating link having one end thereof pivotally connected with said treadle plate and having its other end pivotally connected with said trigger cam, for shifting the trigger cam to release said latch element from engaged relation with the engaging element when the treadle plate is depressed whereby said trap door will swing to the closed position, a valve on said housing intercommunicating the interior of the housing with the exterior and an actuating handle for opening and closing said valve to permit introduction into the housing of an anesthetizing fluid such as chloroform.

References Cited (Backward Citations)

US1283232A Cited
US1858096A Cited
US2518819A Cited
US2793464A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-07-15 1978-01-14 1978-07-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-07-15 1982-01-14 1982-07-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-07-15 1986-01-14 1986-07-16 $7700.00 Window Closed / Lapsed

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