Continuously rotating fluid-operated spanner

Application Number: 00108745
Application Date: 2000.05.31
Publication Number: 1287043
Publication Date: 2001.03.14
Priority Information: 1999/6/25 US 09/344,893
International: B23P19/06;B25B13/46;B25B21/00
Applicant(s) Name: John.K. Junks
Inventor(s) Name: John.K. Junks
Patent Agency Code: 11038
Patent Agent: liu zhibeng
Abstract A fluid operated wrench has a fluid-operated drive including a cylinder , a piston reciprocatingly movable in the cylinder and having a piston rod with a piston rod end , a ratchet mechanism having a ratchet provided with a plurality of teeth, and at least two pawls operatively connectable with the piston rod end .