Mechanical torque wrench with an electronic sensor and...

Details Mechanical torque wrench with an electronic sensor and... Mechanical torque wrench with an electronic sensor and...

2008-02-18

2009-02-24

Patel, Harshad (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

Reexamination Certificate

active

07493830

ABSTRACT:
A mechanical torque wrench including a wrench body defining an elongated interior compartment and a wrench head including a bar extending therefrom being pivotally secured to a first end of the wrench body. A hand grip located on a second end of the wrench body, the hand grip being non-rotationally fixed to the second end of wrench body, and a set spring is disposed within the wrench body. A pawl is disposed between the bar and the set spring. Rotation of a dial screw in a first direction compresses the set spring and rotation in a second direction allows expansion of the set spring. A set ring is operatively connected to the dial screw and rotatable relative to the wrench body. A resistive element produces an output signal that depends on a position of the dial screw relative to the resistive element. A processor converts the output signal into an equivalent torque value in a selected system of units for display on a user interface. Application of a torque greater than the equivalent torque value to a workpiece causes the wrench head to pivot relative to the wrench body about the pivot joint and the selected system of units is one of a metric system of units and a standard system of units.

REFERENCES:
patent: 2063622 (1936-12-01), Pfeiffer
patent: 2614418 (1952-10-01), Shaff
patent: 2830450 (1958-04-01), Knudsen
patent: 4091664 (1978-05-01), Zerver
patent: 4257263 (1981-03-01), Herrgen
patent: 4300413 (1981-11-01), Garofalo
patent: 4397196 (1983-08-01), Lemelson
patent: 4488442 (1984-12-01), Pacinelli
patent: 4558601 (1985-12-01), Stasiek et al.
patent: 4641538 (1987-02-01), Heyraud
patent: 4643030 (1987-02-01), Becker et al.
patent: 5315501 (1994-05-01), Whitehouse
patent: 5537877 (1996-07-01), Hsu
patent: 5589644 (1996-12-01), Becker et al.
patent: 6070506 (2000-06-01), Becker
patent: 6119562 (2000-09-01), Jenkins
patent: 6167788 (2001-01-01), Schonberger et al.
patent: 6276243 (2001-08-01), Jenkins
patent: 6345436 (2002-02-01), Codrington
patent: 6463834 (2002-10-01), Kemp et al.
patent: 6526853 (2003-03-01), Jenkins
patent: 6698298 (2004-03-01), Tsuji et al.
patent: 6968759 (2005-11-01), Becker et al.
patent: 6981436 (2006-01-01), Becker et al.
patent: 7000508 (2006-02-01), Li et al.
patent: 7047849 (2006-05-01), Lai
patent: 7082865 (2006-08-01), Reynertson, Jr.
patent: 7082886 (2006-08-01), Becker
patent: 7089834 (2006-08-01), Reynertson et al.
patent: 7107884 (2006-09-01), Cutler et al.
patent: 7168349 (2007-01-01), Hsieh
patent: 7168350 (2007-01-01), Hsieh
patent: 7174817 (2007-02-01), Hsieh
patent: 7182005 (2007-02-01), Hsieh
patent: 7185571 (2007-03-01), Hsieh
patent: 2002/0170395 (2002-11-01), Wang et al.
patent: 2002/0178876 (2002-12-01), Wang et al.
patent: 2005/0092143 (2005-05-01), Lehnert et al.
patent: 2005/0223856 (2005-10-01), Reynertson et al.
patent: 2006/0027049 (2006-02-01), Arnold

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