Inventors:
John Fridolph - Berlin NJ
Robert Wilson - Dresher PA
Rodney Kulp - Harleysville PA
Assignee:
Pilling Co. - Fort Washington PA
International Classification:
A61B 1728
B21K 1106
B25B 706
Abstract:
By electrically fusing a pin between the outer elements of a box hinge, and thereafter performing the hardening step, stresses which tend to cause instrument failures after a period of use are eliminated. Even if the pin fractures during use, the fact that it is fused to the outer elements of the box hinge prevents broken-off parts of the pin from falling out of the instrument.