Portable mailing scale
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United States of America Patent
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Jan 24, 1989
Grant Date -
N/A
app pub date -
Sep 14, 1987
filing date -
Sep 14, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Family
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