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:
Jun. 08, 2021
Filed:
Jun. 03, 2016
Drillform Technical Services Ltd., Calgary, CA;
Vladimir Scekic, New Westminster, CA;
Radu Gnasienco, Coquitlam, CA;
Russell Turnbull, Burnaby, CA;
Kevin Batalha, Vancouver, CA;
DRILLFORM TECHNICAL SERVICES LTD., Calgary, CA;
Abstract
A self-amplifying safety brake for a disc is provided. The brake includes: a housing; a spring assembly oriented perpendicular to an axis of rotation of the disc, the spring assembly including a first spring end and a second spring end; a sleeve assembly co-axially housing the spring assembly, wherein movement of the sleeve assembly in a first co-axial direction compresses the spring assembly at the first spring end and movement of the sleeve assembly in a second co-axial direction decompresses the spring assembly at the first spring end; a spring compressor configured to move the sleeve assembly in the first and second co-axial directions; a brake plate for frictionally engaging the disc; a lever-cam assembly associated with the sleeve assembly and the brake plate, the lever-cam assembly configured to translate movement of the sleeve assembly in the first coaxial direction into movement of the brake plate away from the disc.