The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 16, 2017

Filed:

Apr. 29, 2016
Applicants:

Don Carpenter, Urbana, OH (US);

Don David Carpenter, Urbana, OH (US);

Kirk Knoblauch, Wilmington, OH (US);

Caleb Lusk, St. Paris, OH (US);

Matthew Keller, Urbana, OH (US);

Inventors:

Don Carpenter, Urbana, OH (US);

Don David Carpenter, Urbana, OH (US);

Kirk Knoblauch, Wilmington, OH (US);

Caleb Lusk, St. Paris, OH (US);

Matthew Keller, Urbana, OH (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); G01C 9/32 (2006.01); G01C 9/34 (2006.01); G08B 5/36 (2006.01);
U.S. Cl.
CPC ...
G01C 9/32 (2013.01); G01C 9/34 (2013.01); G08B 5/36 (2013.01);
Abstract

A gravity-based angle sensor apparatus includes an outer housing (which may be incorporated into a carpenter's level or other reference frame) that contacts or is fastened to a workpiece, and a sensor assembly rotatably mounted within the outer housing. The sensor assembly includes a frame having internal cavities for supporting a LED light module and a sensor responsive to the orientation of the sensor assembly. The sensor electrically bridges two terminals of the LED light module to activate an LED indicator lamp when the sensor assembly has a reference horizontal orientation.


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