Safety hoist ring

Handling: hand and hoist-line implements – Contact lens applicator

Patent

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Details

294 89, 403 78, 403164, B66C 166

Patent

active

058488154

ABSTRACT:
For lifting loads there is provided an eyebolt with an annular ring swivelly mounted on a stud so as to freely rotate in a horizontal plane through a full 360 degrees. A lifting loop has oppositely disposed pivot pins in swivel engagement with the annular ring to allow the loop to pivot in a vertical arc as well as to rotate about the stud. The stud in turn is adapted to be anchored in fixed position to the load, whatever the load may be. Circumferential grooves are cut in the solid pivot pins adjacent the ends thereof. The pivot pins are received in a diametric bore in the retention ring. Bores in the body of the retention ring are positioned to align with the circumferential grooves. Solid dowel elements inserted in these bores engage with the circumferential grooves and retain the pivot pins assembled with the retention ring.

REFERENCES:
patent: 3962755 (1976-06-01), Buschini et al.
patent: 4429526 (1984-02-01), Rehbein
patent: 4431352 (1984-02-01), Andrews
patent: 4705422 (1987-11-01), Tsui et al.
patent: 4863205 (1989-09-01), Schron et al.
patent: 5352056 (1994-10-01), Chandler

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