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:
Aug. 13, 1985
Filed:
Aug. 26, 1983
James E Davis, Lake Park, FL (US);
Lenzar Optics Corporation, Riviera Beach, FL (US);
Abstract
A boresighting instrument which comprises a muzzle end adapter having a frustro conical outer periphery adapted to be inserted into the muzzle end of a barrel threadably receiving a central shaft, a sleeve is coaxially coupled to the muzzle end adapter and extends to a radially extending member, the central shaft extends to the radially extending plate and has coupled thereto an expandable member comprising a plurality of rigid finger members equiangularly disposed about the axis of the central shaft and secured together by an elastomeric material, the fingers of the expandable member have frustro conical inner edges, an expander member is secured to the central shaft and has a frustro conical surface adapted to engage the inner edges of the fingers whereby when the central shaft is rotated in one direction on the threaded connection with the muzzle end adapter, the expander member forces the fingers radially outwardly into engagement with the inner periphery of the barrel.