Tilt sensor and method of making same

Details Tilt sensor and method of making same Tilt sensor and method of making same

2005-09-13

2005-09-13

Porta, David (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S239000, C356S147000, C356S139030

Reexamination Certificate

active

06943339

ABSTRACT:
An apparatus and method of making the same for sensing inclination. The apparatus includes a member moveably positioned in a body, the member moves in response to gravity between two positions if the body is rotated relative to an axis exceeding a certain amount. A detector can be used to detect when the member moves and can automatically report rotation. A method of making an inclinometer includes creating the body by laminating layers, where a layer is prefabricated to include an appropriate cut-out to guide the member between the two positions. Another layer or layers can include the detector. An aspect of the invention comprises having each layer include prefabricated features for multiple inclinometers, and then superposing the prefabricated layers, activating adhesive between them to form a lamination defining a plurality of inclinometers, and then separating the lamination into individual inclinometers.

REFERENCES:
patent: 4972595 (1990-11-01), Shimamura et al.
patent: 5373153 (1994-12-01), Cumberledge et al.
patent: 5410113 (1995-04-01), Mielke
patent: 6011254 (2000-01-01), Sano et al.
patent: 6392223 (2002-05-01), Hjertman et al.
patent: 6559396 (2003-05-01), Chou
patent: 06074766 (1994-03-01), None
patent: 11014350 (1999-01-01), None
06074766 Japanese Abstract, copyrighted 1994.
11014350 Japanese Abstract, copyrighted 1999.

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