Compact portable weighing scale

Details Compact portable weighing scale Compact portable weighing scale

1975-09-05

1976-10-12

Hartary, Joseph W.

Weighing scales

Self-positioning

Fluid transmission to pressure gauge

73410, 116129G, G01G 504

Patent

active

039851915

ABSTRACT:
A compact, portable weighing scale comprising a weight-bearing treadle connected to a cylindrical housing, or wand, by means of a flexible conduit. The treadle contains a sealed collapsible chamber communicating with one end of the conduit. The housing, or wand contains a collapsed bellows communicating with the second end of the conduit. When the chamber is caused to collapse, due to the weight of an object, or human upon the treadle, the bellows within the housing expands to a degree proportional to that to which the chamber has collapsed. The bellows, in turn, actuates a weight-dimensioned rotor, or scale which travels along a helically-shaped rod a distance proportional to the weight upon the treadle. The treadle is adapted to receive and store the housing and the conduit, and the thus-compacted scale is of a size convenient for carrying in a pocket, or small handbag.

REFERENCES:
patent: 1458920 (1923-06-01), Troll
patent: 3055219 (1962-09-01), Wilson et al.
patent: 3433316 (1969-03-01), Newman
patent: 3842667 (1974-10-01), Alexander et al.

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