Back to results
US 5,669,147 AGranted
Tilt sensor
AssigneeNikon Corporation
InventorsNoriaki Nakajima, Hiroshi Hasegawa, Tetsuro Goto
Life of this patent
Estimating the term…
Abstract
A tilt sensor comprises at least two elastically deformable electrodes, a ball having conductivity on at least a surface thereof, and a case which is non-conductive on at least an inner surface thereof for sealing therein the electrodes and the ball.
Claims7
A tilt sensor for detecting an inclination, comprising:
- a case having a non-conductive inner surface;
- a plurality of electrodes having respective contact portions enclosed within said cases;
- and
- a ball having a conductive outer surface and enclosed within said case, said ball being movable within said case by gravity and having a diameter greater than a distance between said contact portions of said electrodes such that said contact portions are electrically connectable through said ball,
- said contact portions of said electrodes being constituted as elastically deformable coils which are elastically deformable by contact of said ball with intermediate lengthwise portions of said coils, irrespective of directions of contact by said ball.
2 more elements
Dependencies are inferred from the claim text.