Back to results
US 6,314,653 B1Granted
Ruler device
OwnerNobuaki Isoinventor
Life of this patent
Estimating the term…
Abstract
A ruler device is disclosed. It comprises a ruler body, a spring member disposed on an upper surface of the ruler body such that the spring member is warped upwardly, and a slip-preventive member disposed on a lower surface of the ruler body, the slip-preventive member being caused to project downwardly when the spring member is depressed.
Claims23
A ruler device comprising:
- a ruler body;
- a spring member disposed on an upper surface of said ruler body such that said spring member is warped upwardly;
- and
- a slip-preventive member disposed on a lower surface of said ruler body;
- wherein said slip preventive member comprises a balloon which is inflated and projected downwardly when said spring member is depressed.
2 more elements
A ruler device comprising:
- a ruler body;
- a spring member disposed on an upper surface of said ruler body such that said spring member is warped upwardly;
- and
- a slip-preventive member disposed on a lower surface of said ruler body;
- wherein said slip-preventive member is caused to project downwardly when said spring member is depressed;
- and
- wherein said spring member is connected to a wire.
4 more elements
A ruler device comprising:
- a ruler body;
- a spring member disposed on an upper surface of said ruler body such that said spring member is warped upwardly;
- and
- a slip-preventive member disposed on a lower surface of said ruler body;
- wherein said slip-preventive member is caused to project downwardly when said spring member is depressed;
- and
- wherein said spring member is connected to a link and a cam mechanism.
4 more elements
Dependencies are inferred from the claim text.