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:
Nov. 15, 2016
Filed:
Oct. 15, 2015
Applicant:
Avdel Uk Limited, Hertfordshire, GB;
Inventor:
Richard King, Hertfordshire, GB;
Assignee:
Avdel UK Limited, Hertfordshire, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B21J 15/20 (2006.01); B21J 15/18 (2006.01); B21J 15/30 (2006.01); B21J 15/04 (2006.01); B21J 15/22 (2006.01); B21J 15/10 (2006.01); B21J 15/32 (2006.01);
U.S. Cl.
CPC ...
B21J 15/18 (2013.01); B21J 15/043 (2013.01); B21J 15/105 (2013.01); B21J 15/22 (2013.01); B21J 15/30 (2013.01); B21J 15/326 (2013.01);
Abstract
A fastener installation tool for installing a fastener by gripping and drawing back a stem of the fastener comprises a hydraulic cylinder, and a hydraulic piston assembly located in the hydraulic cylinder for use in drawing back the stem of a fastener. The hydraulic piston assembly comprises an elongate draw part and a separate hollow piston part mounted on the elongate draw part such that the elongate draw part extends at least partly through the hollow piston part. The elongate draw part and the hollow piston part are formed from different materials.