Heavy duty polymeric spring member and combination of spring and

Details Heavy duty polymeric spring member and combination of spring and Heavy duty polymeric spring member and combination of spring and

1981-11-09

1984-08-28

Silverberg, Fred Andrew

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

Casters

16 44, 16DIG36, B60B 3300

Patent

active

044674961

ABSTRACT:
A spring member comprises an annular polymeric structure 1 interrupted by gap 3 to define annular structure ends 4 provided with attachment adaptions, external at 8 and internal at 6. Thus wheel 12 journalled at 7 in extension 6 is resiliently mounted by virtue of the elasticity of the annular structure material. Proportions, dimensions and materials can be varied over a wide range of applications. A particularly valuable application of such a C-shape spring is in the provision of a resiliently mounted castor wheel with a resiliently mounted pilot wheel giving easy passage up over a door sill or the like.

REFERENCES:
patent: 1105379 (1914-07-01), Schulze
patent: 2123707 (1938-07-01), Bloch
patent: 2453916 (1948-11-01), Inskeep
patent: 2914340 (1959-11-01), Black
patent: 2923961 (1960-02-01), Black
patent: 2942698 (1960-06-01), Bolinger
patent: 2980944 (1961-04-01), Bolinger
patent: 2987752 (1961-06-01), Black

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