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. 13, 2017
Filed:
Apr. 09, 2014
Reeves Wireline Technologies Limited, Leicestershire, GB;
Simon Christopher Ash, Nottingham, GB;
Neill Gilhooley, Nottingham, GB;
Neil John Banton, Nottinghamshire, GB;
Reeves Wireline Technologies Limited, Leicestershire, GB;
Abstract
A shock absorber () for downhole use comprises an elongate, hollow member defined by a series of mutually aligned, plastically deformable perforated members () having aligned perforations that define the hollowness of the elongate, hollow member that are spaced from one another in the direction of elongation by respective relatively rigid spacer members () that are secured to the perforated members. The elements of each pair of perforated members () of the series are so spaced from one another by one or more of the spacer members () such that on compression of the shock absorber () the perforated members () deform plastically to a lesser extent in regions at which the spacer members () are secured than at other regions. The arrangement of the perforated members () and the spacer members () causes compression to occur substantially parallel to the length of the shock absorber ().