Portable mailing scale

Details Portable mailing scale Portable mailing scale

1987-09-14

1989-01-24

Miller, Jr., George H.

Weighing scales

With weigher loading or unloading means

Hand manipulatable weigher

177224, G01G 1956, G01G 102

Patent

active

047995602

ABSTRACT:
This portable mailing scale is a small, economical, and accurate balance-type weight-scale, especially suitable for measuring light weight, such as letters, to determine correct postage. Because the scale is of the balance-type, its accuracy is far better than those of the spring-type, especially under light load. Although scales of the balance-type usually require a trial and error leveling or balancing operation and thus are less convenient to use than those of the spring-type, this invention does not require such cumbersome leveling operation.
Therefore, this invention combines both the accuracy of balance-type scales and the ease of use of spring-type scales.

REFERENCES:
patent: 388138 (1888-08-01), Knight
patent: 822804 (1906-06-01), Willis
patent: 2646979 (1953-07-01), Weber
patent: 3599738 (1971-08-01), Wickenberg
patent: 4624332 (1986-11-01), Mills

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