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US 4,306,369 AGranted
Animal traps
AssigneeSterling Drug Inc.
InventorHerman Margulies
Life of this patent
Estimating the term…
Abstract
Readily assembled animal trap comprising a one-piece spring-actuated jaw/torsion spring and a one-piece molded plastic base with projections for receiving the jaw/spring unit.
Claims12
An animal trap comprising a substantially rectangular base of thermoformed plastic having at least two vertical projections at about the mid-portion thereof and integral with said base;
- a one-piece spring-actuated striker jaw mounted on said base which consists of a wire bent into a right angle U-shape with a straight portion and a coil spring across the mouth of the U-shape, the terminal portion of said wire extending from the end of said spring, said terminal portion being straight and generally normal to the axes of said coil spring and said straight portion;
- the first of said vertical projections on said base having a horizontal projection on the upper portion thereof extending toward the second vertical projection and projecting into the end portion of said coil spring, the second of said vertical projections having an arch portion thereon under which said straight portion of said wire is engaged, the terminal portion of said wire being forced parallel to the plane of said striker jaw when said coil spring is held by said horizontal projection and said second vertical projection, with said coil spring being urged against said arch portion and said horizontal projection under relatively low or no tension;
- a hold-down bar means pivotally mounted on said base for holding down said jaw when said jaw is swung 180.degree. from said low or no tension position into a relatively high tension position, said bar having a projection on the free end portion thereof;
- and a feed plate, pivotally mounted on and movable through the plane of said base, said feed plate having a recess therein in proximity to the pivotal mounting point in which said bar projection is engagable to lock said spring-actuated striker jaw in place under relatively high tension, said feed plate having means thereon for affixing an animal bait material thereto.
1 more element
The trap according to claim 19 wherein said first vertical projection is held in said recess by providing two horizontally protruding lugs from the bottom of the side portion of said vertical projection, said lugs nesting in two slots adjacent to said recess, the forward portion of the top surface of said slots being defined by two downwardly protruding projections which snappingly engage said lugs when said first vertical projection is swung from a position parallel to the plane of said base to a position perpendicular to the plane of said base.
A method of assembling an animal trap comprising a substantially rectangular base of thermoformed plastic having at least two vertical projections at about the midportion thereof and integral with said base;
- a one-piece spring-actuated striker jaw mounted on said base which consists of a wire bent into a right angle U-shape with a straight portion and a coil spring across the mouth of the U-shape, the terminal portion of said wire extending from the end of said spring, said terminal portion being straight and generally normal to the axes of said coil spring and said straight portion;
- the first of said vertical projections on said base having a horizontal projection on the upper portion thereof extending toward the second vertical projections and projecting into the end portion of said coil spring, the second of said vertical projections having an arch portion thereof under which said straight portion of said wire is engaged, the terminal portion of said wire being forced parallel to the plane of said striker jaw when said coil spring is held by said horizontal projection and said second vertical projection with said coil spring being urged against said arch portion and said horizontal projection under relatively low or no tension;
- a hold-down bar means pivotally mounted on said base for holding down said jaw when said jaw is swung 180.degree. from said low or no tension position into a relatively high tension position, said bar having a projection on the free end portion thereof;
- and a feed plate, pivotally mounted on and movable through the plane of said base, said feed plate having a recess therein in proximity to the pivotal mounting point in which said bar projection is engagable to lock said spring-actuated striker jaw in place under relatively high tension, said feed plate having means thereon for affixing an animal bait material thereto,
- which method comprises the steps of forcing the terminal portion of said wire parallel to the plane of said jaw, placing the end portion of said coil spring over said horizontal projection on said first vertical projection and engaging the straight portion of said wire with said arch portion of said second vertical projection by maneuvering said straight portion under the arch of said second vertical projection.
2 more elements
A method of assembling an animal trap comprising a substantially rectangular base of thermoformed plastic having at least two vertical projections at about the mid-portion thereof and integral with said base;
- a one-piece spring-actuated striker jaw mounted on said base constituted by a wire bent into a right angle U-shape with a straight portion and a coil spring across the mouth of the U-shape, the terminal portion of said wire extending from the end of said spring, said terminal portion being straight and generally normal to the axes of said coil spring and said straight portion;
- the first of said vertical projections on said base being swingably mounted thereon by a live hinge permitting deflection of said first vertical projection outward from its position perpendicular to the plane of said base, and having a horizontal projection on the upper portion thereof extending toward the second vertical projection and projecting into the end portion of said coil spring when said first vertical projection is perpendicular to the plane of said base, the second of said vertical projections having an arch portion thereon under which said straight portion of said wire is engaged, the terminal portion of said wire being forced parallel to the plane of said striker jaw when said coil spring is held by said horizontal and said second vertical projections with said coil spring being urged against said arch portion and said horizontal projection under relatively low or no tension;
- a hold-down bar means pivotally mounted on said base for holding down said jaw when said jaw is swung 180.degree. from said low or no tension position into a relatively high tension position, said bar having a projection on the free end portion thereof;
- and a feed plate, pivotally mounted on and movable through the plane of said base, said feed plate having a recess therein in proximity to the pivotal mounting point in which said bar projection is engagable to lock said spring-actuated striker jaw in place under relatively high tension, said feed plate having means thereon for affixing an animal bait material thereto,
- which method comprises the steps of forcing the terminal portion of said wire parallel to the plane of said jaw, urging said first vertical projection outwardly and out of perpendicular with said base, placing the said straight wire portion under said arch portion of said second vertical projection, and returning the said first vertical projection to a position perpendicular to the plane of said base while inserting said horizontal projection into the said end portion of said coil.
2 more elements
Dependencies are inferred from the claim text.