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:
Sep. 21, 1976
Filed:
Jul. 14, 1975
Philippe Rauch, Bosdarros, FR;
Jacques Tinchon, Lescar, FR;
Teleco Inc., Middletown, CT (US);
Abstract
This invention concerns a device to block at a given torque a rotating machine driven by a hydraulic or gas turbine. The device comprises means of separating a driven disc from a driving disc, consisting of the insertion between the two discs of at least three balls or the like, which roll along three inclined cavities sloping in opposite directions when the longitudinal reaction resulting from the driven-shaft torque exceeds the force of a calibrated spring; these means co-operate with a disc brake fixed to the driven shaft, and which increases the driven-shaft torque. This device is used in particular to block, outside operating periods, driven appliances connected with a hydraulic turbine operated by drilling mud in equipment at the bottom of wells to measure and transmit drilling parameters and characteristics.