Swivel hooks and method for making the same
AssigneeCoats & Clarks, Inc.
InventorsRuediger Einhorn, Lee Richard Chasen
Life of this patent
Estimating the term…
Abstract
A swivel hook has a hook member with a frustoconical projection terminating in a cylindrical extension of diameter less than the smaller diameter end of the frustoconical portion. The mounting member for the swivel hook has a frustoconical hole into which the frustoconical projection is fitted. The elements of the swivel hook are adapted to be cast of a metal or molded of a plastic, in such a manner that the bearing surfaces of one of the elements forms a part of the die for the bearing surfaces of the other element. During the casting or molding process, the cylindrical extension is beyond the frustoconical hole, and the elements are moved relative to each other following casting or molding to move the cylindrical extension into alignment with the frustoconical hole.
Claims15
In an articulated article of the type comprising a first element having a frustoconical projection and a second element having a frustoconical aperture fitted on said projection to form an articulated joint, said frustoconical projection having an axial length substantially equal to the axial length of said aperture, the improvement wherein said first element further has an extension on the smaller diameter end thereof and axially aligned with said projection, said extension having a lesser maximum transverse dimension than the minimum diameter of said frustoconical projection and a substantially lesser axial length than said frustoconical projection.
A swivel hook comprising a hook having a frustoconical projection with the smaller diameter end thereof away from said hook, an extension on said smaller diameter end having lesser maximum transverse dimension than the lesser diameter end of said frustoconical projection and an axial length substantially smaller than the axial length of said frustoconical projection, and an enlarged end on said extension, and mounting means for said hook comprising an element having a frustoconical hole extending therethrough having a length substantially equal to the length of said frustoconical projection of said hook and larger and lesser diameters substantially equal to the lesser and larger diameters of said frustoconical projection, said projection being fitted into said hole with said extension extending into the lesser diameter end of said hole.
A swivel hook comprising first and second U-shaped elements pivoted together at a pair of aligned pivot joints at the ends of said first and second U-shaped elements, a mounting hole in the center of said first U-shaped element and normal to the pivotal axis between said first and second U-shaped elements, whereby said second U-shaped element intercepts the axis of said mounting hole in one relative position of said first and second U-shaped element and is clear of said axis of said mounting hole in another relative position of said first and second U-shaped elements, and a hook element pivotally mounted to the center of said second U-shaped member.
A swivel hook comprising a U-shaped mounting element, a bridge element extending between the ends of the U-shaped element and pivoted thereto, a mounting screw permanently affixed in said U-shaped element at the center thereof and extending away from the pivotal axis between said U-shaped element and said bridge element, the axis of said screw being normal to and intersecting said pivotal axis, and a hook portion pivoted to the center of said bridge element for rotation about an axis intersecting the axis of said screw and the pivotal axis of said bridge element, the ends of said U-shaped element being wing-shaped to enable manual rotation of said U-shaped element and hence said screw.
A hook comprising a first element having a wall mounting surface, a mounting element, means removably mounting said mounting element to said first element on the side thereof away from said mounting surface, and a hook depending from said mounting element, said mounting means comprising a first pair of opposite guide surfaces on said first element on the side thereof away from said mounting surface, said first surfaces lying in planes that converge toward one side of said first element and diverge toward said mounting surface, and a second pair of opposed guide surfaces on said mounting element, one of said pairs of surfaces defining the sides of a guide channel and the other of said pairs of guide surfaces defining the sides of a guide projection and being in engagement with said first guide surfaces.
Dependencies are inferred from the claim text.