Set point postal scale

Details Set point postal scale Set point postal scale

1992-05-18

1994-11-01

Miller, Jr., George H.

Weighing scales

Self-positioning

Spring

177263, G01G 302

Patent

active

053609506

ABSTRACT:
A set point postal scale comprises in a first embodiment thereof a transparent tubular holder having a lower base, a weighing pan having a plunger depending therefrom, a compression spring disposed within the holder, and a set of annular rings. The plunger is slidingly engaged within the holder and is in abutment with the spring which resists downward displacements of the weighing pan. The differently colored rings are slid along the holder to selected positions thereon corresponding to given weights as determined by a set of calibration weights provided with the scale. In a second embodiment thereof, the holder is suspended by a hooked appendage on an upper portion thereof and the weighing pan is replaced by a angled tray depending from a lower end of the spring which now acts in tension within the transparent holder.

REFERENCES:
patent: 3319730 (1967-05-01), Cuddon-Fletcher
patent: 3583505 (1971-06-01), Valkinburgh et al.
patent: 3718198 (1973-02-01), Hach

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