Plastic screw grommet

Details Plastic screw grommet Plastic screw grommet

1977-03-25

1978-04-04

Britts, Ramon S.

F16B 1304

Patent

active

040820300

ABSTRACT:
A one-piece plastic screw grommet for use in a polygonally apertured panel. The shank of the grommet is complimentary to the aperture with which it is used and includes a plurality of posts positioned in the corners of the aperture with the posts carrying web-like spring members that support and co-act with legs positioned medially between adjacent posts. Each leg includes a transversely concave inner surface forming a segment of the bore with the concave surface falling substantially on the pitch diameter of the screw with which it is associated. The posts, legs, and spring members are supported at opposite ends by the head and a free end element, with the end element closing the bore and the head sealing against the panel.

REFERENCES:
patent: 2573498 (1951-10-01), Scott
patent: 3469493 (1969-09-01), Fisher
patent: 3476008 (1969-11-01), Pearson et al.
patent: 3593612 (1971-07-01), Schulze
patent: 3703120 (1972-11-01), Van Buren
patent: 3756116 (1973-09-01), Schuplin

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