Needle, particularly for embroidery machines
AssigneeTheodor Groz & Sohne & Ernst Beckert Nadelfabrik Commandit-Gesellschaft
InventorsHarry Vornholt, Thomas Schmid
Life of this patent
Estimating the term…
Abstract
A needle includes a shank and a blade adjoining the shank. The blade has a conical length portion tapering in a direction away from the shank, a cylindrical length portion adjoining the conical length portion and a pointed tapering end portion adjoining the cylindrical length portion. The conical length portion is situated between the shank and the cylindrical length portion. An eye and a longitudinally extending groove are provided in the blade. Further, a circumferential, rounded constriction is provided in the blade adjacent the shank. The constriction which forms a predetermined breaking location, adjoins the conical length portion and is located between the shank and the conical length portion.
Claims7
A needle comprising
- (a) a shank
- (b) a blade adjoining said shank;
- said blade including
- (1) a conical length portion tapering in an direction away from said shank;
- and
- (2) a cylindrical length portion adjoining said conical length portion;
- said conical length portion being situated between said shank and said cylindrical length portion;
- (c) a pointed tapering end portion adjoining said cylindrical length portion;
- (d) an eye provided in said blade;
- (e) a longitudinally extending groove provided in said blade;
- and
- (f) a circumferential, rounded constriction provided in said blade adjacent said shank;
- said constriction being located between said shank and said conical length portion and adjoining said conical length portion;
- the constriction constituting a predetermined breaking location.
Dependencies are inferred from the claim text.