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. 01, 1987
Filed:
Mar. 06, 1986
Paul V Choate, Milton, MA (US);
Robert W Woodburn, Middleboro, MA (US);
N I Industries, Los Angeles, CA (US);
Abstract
Launchers of the type that are extensible when readied for use contain projectiles the efficiency of the propellants of which varies directly with their temperature. Prior to the extension of such launchers, they are water resistant and their interiors are thermally insulated and when extended, the rear and front sights become erected. The front sight, prior to launcher extension includes a sight housing in support of a sighting member having a central sighting post. One end of the sight housing is pivotally connected to the interior of the launcher housing and is under the influence of an erecting spring. The sight housing has a slideway extending to an opening through its free end and intersecting a lengthwise chamber in the sight housing. The slideway accommodates the sighting member and laterally of the chamber, the sighting member and the sight housing are interconnected in a manner enabling the sighting member to move lengthwise of the sight housing to a predetermined extent while preventing its lateral movement. A thermally responsive element within the chamber has one end connected to the sight housing below the chamber and its other end connected to the sighting member within the chamber so that when the launcher is readied for use, the front sight compensates for the existing efficiency of the propellant.