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. 06, 1986
Filed:
Mar. 14, 1984
Applicant:
Inventor:
Hans Demuth, Winterthur, CH;
Assignee:
Sulzer Brothers Limited, Winterthur, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D03D / ;
U.S. Cl.
CPC ...
139439 ;
Abstract
The return device for the projectiles of a gripper projectile weaving machine has an end position brake employing an abutment in the form of a piston which is guided in the cylinder and which experiences the light pressure of a restoring spring. The ratio of the mass of the projectile to the mass of the piston at a given projectile speed is such that the projectile stops immediately upon striking the piston. The piston does not experience local wear over extended periods of time and obviates any need for a means to prevent a bounce-back of the projectile.