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.
Patent No.:
Date of Patent:
May. 28, 1991
Filed:
Apr. 28, 1988
David H Biggs, Gardnerville, NV (US);
John K Little, Tucson, AZ (US);
Philip C Hanifan, Gardnerville, NV (US);
Bently Nevada Corp., Minden, NV (US);
Abstract
A wireless data coupling system for transmitting data such as torque from a rotating shaft to a stationary receiver includes at least one photocell on the shaft along with a corresponding stationary light source for illuminating the photocells. This powers the rotating components. From a data standpoint an analog signal from a strain gauge is converted to a digital signal which is transmitted bit by bit by a pair of light emitting diodes one of which acts as a data sync. The stationary receiver contains columns of phototransistors to receive both the data and data sync pulses. Initiation of the transmission of data is started by a start pulse which occurs first in time and thereafter send pulses from the stationary system actuate the data and data sync pulses from the rotating system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile