1
Stanley E Staffeld: Connector and insertion tool. Krass & Young, April 2, 1985: US04507817 (42 worldwide citation)

A unique connector and insertion tool are disclosed. The connector is hollow with screw-type threads on its outer surface, an enlarged head at one end and a non-sharp configuration at the other end. The insertion tool has a non-sharp elongated shaft or piercer attached to a handle; the end of the pi ...


2
Stanley E Staffeld: Insertion tool. Krass and Young, May 20, 1986: US04589178 (6 worldwide citation)

A unique connector and insertion tool are disclosed. The connector is hollow with screw-type threads on its outer surface, an enlarged head at one end and a non-sharp configuration at the other end. The insertion tool has a non-sharp elongated shaft or piercer attached to a handle; the end of the pi ...


3
Stanley E Staffeld: Creaser tool. Krass and Young, May 13, 1986: US04587736 (1 worldwide citation)

A creasing tool for relatively soft material such as corrugated board including a generally cylindrical roller mounted for rotation upon an axle which is journaled on a retaining yoke. The roller includes an annular ridge projecting from its surface about substantially the entire circumference there ...