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:
Apr. 21, 2026
Filed:
Mar. 25, 2025
Flowserve Pte. Ltd., Singapore, SG;
William C. Hooss, Rustburg, VA (US);
Daniel J. Morris, Forest, VA (US);
Flowserve Pte. Ltd., Singapore, SG;
Abstract
A rotational indicator comprises a mechanical reducer having a reduction factor that is variable without exchanging components. A plurality of identical double gears rotate about a pair of parallel fixed shafts, a large gear of each double gear being intermeshed with a small gear of a preceding double gear on the opposing shaft. An axially moveable pinion gear is rotationally fixed to a rotatable pinion shaft, and is engageable with any of the large gears of the double gears according to its axial location, whereby a reduction factor between a rotational input and the pinion gear is variable. The pinion shaft is coupled to an indicating mechanism, which can be a pointer of a dial assembly and/or a rotary electrical component. The rotational input can be bounded, and the reduction factor can be adjusted to provide a bounded output range that is compatible with the indicating mechanism.