Springbeard needle
AssigneeTheodor Groz & Sohne & Ernst Beckert
InventorsWolfgang Schmoll, Siegfried Wissmann
Life of this patent
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Abstract
A springbeard needle includes a shank having opposite ends, an upper edge, a lower edge and two opposite side faces; a head formed at one of the shank ends; a springbeard extending from the head and being oriented towards the upper shank edge; and a groove provided in the shank. The groove extends from the upper shank edge and is open at one of the side faces. An end portion of the springbeard projects into the groove from the upper shank edge. The groove has a longitudinal axis which forms an acute angle with the lower shank edge and which is oriented towards the head as viewed in a direction from the lower shank edge to the upper shank edge.
Claims11
A springbeard needle comprising
- (a) a shank having opposite ends, an upper edge, a lower edge and two opposite side faces;
- (b) a head formed at one of said ends;
- (c) a springbeard extending from said head and being oriented towards said upper edge;
- said springbeard having a free end portion;
- and
- (d) a groove provided in said shank;
- said groove extending from said upper edge and being open at one of said side faces;
- said end portion of said springbeard projecting into said groove from said upper edge of said shank;
- said groove having a longitudinal axis forming an acute angle with said lower edge of said shank and being oriented towards said head as viewed in a direction from said lower edge to said upper edge.
Dependencies are inferred from the claim text.