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US 5,784,794 AGranted
Sensing device
OwnerDonald Fredrick Nelsoninventor
Life of this patent
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Abstract
A computer input device. The device is a body containing at least one tube. There is a first conductor in the tube able to move along the tube. Spaced contacts are formed within the tube and conductors extend from the spaced contacts. First interfaces receive information from the conductors as to the position of the first conductor in the tube and input information to the computer based on the position of the first conductor. Second interfaces input information to the computer.
Claims7
A computer input device comprising:
- a body containing a tube comprising opposed cones, joined at the cone bases;
- a first conductor in the tube able to move along the tube;
- a plurality of spaced contacts within the tube;
- conductors extending from the spaced contacts;
- first interface means to receive information from said conductors as to the position of the first conductor in the tube and input information to the computer based on the position of the first conductor;
- and
- second interface means to input information to the computer.
4 more elements
Dependencies are inferred from the claim text.