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:
May. 31, 1977
Filed:
Dec. 05, 1975
Gunter Backstein, Meerbusch, DT;
Rheinmetall G.m.b.H., Dusseldorf, DT;
Abstract
A fuze for an artillery shell to be spun about an axis generally parallel to the direction in which it is fired comprises a housing formed with a central axially extending sleeve and with a chamber surrounding the sleeve. A pin is axially slidable in the sleeve and is retained in position by at least one ball. A spiral spring wound in the chamber around the sleeve normally holds the balls in position to lock the sleeve in place and maintain the fuze in an unarmed condition. This spring comprises a steel inner section lying against the sleeve and normally pressing the balls together against the pin, an outer section having a high coefficient of friction and engageable with the inner surface of the spring-containing chamber, and an intermediate section between the inner and outer sections and having substantially more turns than both of these sections.