Dielectric D-ring
AssigneeHaun Drop Forge Co. Ltd.
InventorsKeith A. Smith, Steve B. Levay
Life of this patent
Estimating the term…
Abstract
A dielectric D-ring of the type having a hook receiving opening at one end and a strap or cable receiving opening at the other. The dielectric D-ring comprises a D-ring blank encased within a dielectric injection molded plastic shell. The blank has a plurality of plastic receiving holes therethrough that receive plastic when the dielectric plastic shell is injection molded about the blank. The plastic filled holes assist in holding together the portions of the plastic shell situated on opposite sides of the blank.
Claims14
A dielectric D-ring of the type having a hook receiving opening at one end and a strap or cable receiving opening at the other, the dielectric D-ring comprising:
- a D-ring blank encased within a dielectric injection molded plastic shell, said blank having a plurality of plastic receiving holes therethrough that receive plastic when said dielectric plastic shell is injection molded about said blank to thereby assist in holding together the portions of said plastic shell situated on opposite sides of said blank, said dielectric plastic shell having an increased thickness about at least a portion of said hook receiving opening, said increased thickness of said dielectric plastic shell about said hook receiving opening radiused to reduce wedging of said D-ring when received within the bowl of a hook, said increased thickness of said dielectric plastic shell increasing the wear surface area of said dielectric plastic shell about said hook receiving opening in said blank.
The device as claimed in 3 wherein the surface of said blank is roughened to increase the surface adhesion between said dielectric plastic shell and said blank.
A method of producing a dielectric D-ring of a type having a hook receiving opening at one end and a strap or a cable receiving opening at the other, the method comprising the steps of:
- (i) forming a D-ring blank of a general size, shape, and configuration as that desired for the finished D-ring product;
- (ii) forming a plurality of plastic receiving holes that extend through said blank;
- and, thereafter,
- (iii) encasing the entire surface area of said blank in a dielectric plastic shell through injection molding dielectric plastic about said blank without the formation of hang points, said injection molding of said dielectric plastic about said blank including filling said plurality of plastic receiving holes with said dielectric plastic thereby forming a bond of said dielectric plastic through said blank to assist in holding together the portions of said dielectric plastic shell situated on opposite sides of said blank.
Dependencies are inferred from the claim text.