Caster with D-shaped stem

Details Caster with D-shaped stem Caster with D-shaped stem

1997-01-22

1998-09-29

Mah, Chuck

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Pintles

16 20, 16 38, 16 43, B60B 3300

Patent

active

058130900

ABSTRACT:
A caster with a stem generally cylindrical over most of its external circumference, but provided with at least one flat face cut through the cylinder external circumference so as to provide the cylinder with a slight "D" shaped cross section. The stem is designed to seat in a corresponding "D" shaped bore hole of a mobile platform, the shapes cooperating to secure the stem against rotation. The stem is internally threaded, and can fit into either cylindrical or "D" shaped bore holes.

REFERENCES:
patent: 314962 (1885-03-01), Mendenhall
patent: 1036726 (1912-08-01), Salisbury
patent: 2253824 (1941-08-01), Townsend et al.
patent: 3022535 (1962-02-01), Black
patent: 4543685 (1985-10-01), Kassai
patent: 4649596 (1987-03-01), Kassai
patent: 4788741 (1988-12-01), Hilborn
patent: 5527051 (1996-06-01), Plaza
patent: 5527285 (1996-06-01), Goman

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