Fastening device
First Claim
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1. A fastening device for anchoring a load to a threaded base, the fastening device comprising:
- (a) a stud including a head and a shank, said shank having a lower threaded portion adapted to be fastened to the base and an adjacent, upper threaded portion,(b) a retainer member including an inner surface having a threaded portion, adapted to be received by the stud upper threaded portion, and an outer surface having a bearing portion,(c) a bushing member including an inner surface having a bearing portion operatively engageable with the outer bearing portion of the retainer member and an end bearing portion operatively engageable with the base,(d) interengageable means on each of said members engageable to limit relative longitudinal movement between said members, and(e) load attaching means operatively connected to the bushing member in swivel relation for transferring applied load to the bushing member and the stud.
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Abstract
This fastening device provides a self-contained, tie-down unit by means of which load from a swivel eye is transferred to a base. The fastening device includes a stud, threadedly connectible to a base and mounting a collar and a retainer member. The retainer member supports a bushing member, and the bushing member and collar provide a swivel mount for the load ring. The bushing member and stud cooperate to transfer variable loadings into the base in a manner predictable from their size and configuration.
25 Citations
15 Claims
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1. A fastening device for anchoring a load to a threaded base, the fastening device comprising:
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(a) a stud including a head and a shank, said shank having a lower threaded portion adapted to be fastened to the base and an adjacent, upper threaded portion, (b) a retainer member including an inner surface having a threaded portion, adapted to be received by the stud upper threaded portion, and an outer surface having a bearing portion, (c) a bushing member including an inner surface having a bearing portion operatively engageable with the outer bearing portion of the retainer member and an end bearing portion operatively engageable with the base, (d) interengageable means on each of said members engageable to limit relative longitudinal movement between said members, and (e) load attaching means operatively connected to the bushing member in swivel relation for transferring applied load to the bushing member and the stud. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A fastening device for anchoring a load to a threaded base, the fastening device comprising:
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(a) a stud including a head and a shank, said shank having a lower threaded portion adapted to be fastened to the base and an adjacent, upper threaded portion, (b) a retainer member including an inner surface having a threaded portion, adapted to be received by the stud upper threaded portion, and an outer surface having a cylindrical bearing portion, (c) a bushing member including an inner surface having a cylindrical bearing portion operatively engageable with the outer bearing portion of the retainer member and an end bearing portion operatively engageable with the base, and (d) load attaching means operatively connected to the bushing member in swivel relation for transferring applied load to the bushing member and the stud.
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Specification