Portable mailing scale
OwnerYukoh Kobayashiinventor
Life of this patent
Estimating the term…
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.
Claims20
A balanced weight-scale, comprising:
- a body;
- means for supporting said body in the air, while providing a fulcrum around which said body can rotate freely according to the gravitational force;
- means for holding an object to weigh at one side of said body;
- a legend whereon the weight of said object can be read;
- and
- a pointer for pointing the weight of said object on said legend;
- wherein said pointer is loosely fixed to said means for supporting the body of the scale when in use, whereby the zero-position of said pointer relative to said legend can be adjusted by changing the pointing direction of said pointer at the fixed point.
A balanced weight-scale, comprising:
- a body;
- means for holding an object to weigh at one side of said body;
- a legend whereon the weight of said object can be read;
- and
- means for supporting said body in the air with one or more joints, while providing means for pointing the weight of said object on said legend as well as a fulcrum around which said body can rotate freely according to the gravitational force;
- wherein the zero-position of said means for supporting said body in the air relative to said legend can be adjusted by changing the direction of said means for supporting said body in the air at said one or more joints.
A balanced weight-scale, comprising:
- a body;
- means for supporting said body in the air, while providing a fulcrum around which said body can rotate freely according to the gravitational force;
- means for holding an object to weigh at one side of said body;
- a legend whereon the weight of said object can be read;
- and
- a pointer for pointing the weight of said object on said legend;
- wherein said pointer is located directly beneath said means for supporting said body of the scale in the air and the zero-position of said pointer relative to said legend can be adjusted easily by bending the body of said pointer.
A balanced weight-scale, comprising:
- a body;
- means for holding an object to weigh at one side of said body;
- a legend whereon the weight of said object can be read;
- and
- means for supporting said body in the air, while providing means for pointing the weight of said object on said legend as well as a fulcrum around which said body can rotate freely according to the gravitational force;
- wherein the zero-position of said means for supporting said body in the air relative to said legend can be adjusted easily by bending the body of said means for supporting said body in the air.
Dependencies are inferred from the claim text.