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:
Dec. 31, 1985
Filed:
Feb. 13, 1984
Franklin P Orlando, Morgan Hill, CA (US);
Joseph S Goulart, Santa Clara, CA (US);
Rangasami S Chandra, Walnut Creek, CA (US);
FMC Corporation, Chicago, IL (US);
Abstract
Apparatus for detecting changes in inclination or acceleration is disclosed. In its preferred environment the apparatus is used to determine the position of the sucker-rod of a sucker-rod pump. The preferred embodiment of the apparatus includes a magnetic-field sensor such as a linear output transducer which provides a linear output signal, and a cantilever spring having a counterweight and magnet on its free end disposed adjacent the linear transducer. Oscillation of the walking beam of the pump causes the spring supported magnet to move relative to the sensor producing linear output signals which are processed by other means to determine the position of the sucker-rod at all times. The apparatus may be used in other environments to determine either changes in inclination or changes in acceleration.