Title: Tightening system with quality control apparatus

Abstract: A tightening system for tightening a fastener is disclosed herein and includes a wrench for tightening the fastener, a control system for shutting off the wrench when the fastener has been tightened to a predetermined condition and a quality control system including apparatus for determining if tightening characteristics of the fastener at the predetermined condition lie within a range which would be expected for those tightening characteristics for fasteners tightened to the predetermined condition.

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Inventors: Smith, Stanley K. (Lansdale, PA, US)

Application Number: 507545
Filing Date: 1974-09-19
Publication_date: 1976-08-10
Assignee: Standard Pressed Steel Co. (Jenkintown, PA)
Primary Class(es): 73/862.24 73/761, 73/862.31, 81/470, 173/183, 700/32, 700/80, 702/41
Other Classes:
US Patent Ref:

3368396	Feb, 1968	VanBurkleo et al.	73/139.
3596718	Aug, 1971	Fish	173/12.
3643501	Feb, 1972	Pauley	73/139.
3693726	Sep, 1972	Hornig et al.	173/12.
3745820	Jul, 1973	Weiner	73/139.
3821991	Jul, 1974	Alexander	81/52.
3825912	Jul, 1974	Wiese	81/52.

Other Refs:
Primary Examiner: Ruehl, Charles A.
Assistant Examiner:
Attorney: Ney; Andrew L., Seitter; Robert P., Nerenberg; Aaron