Joseph E Groshans

US Patent:

39733629, Aug 10, 1976

Filed:

Jun 6, 1975

Appl. No.:

5/584577

Inventors:

Joseph R. Groshans - Clinton NY

Assignee:

Chicago Pneumatic Tool Company - New York NY

International Classification:

B24D 1700

US Classification:

51386

Abstract:

A sanding shoe attachable to a reciprocable carrier in a hand-held portable sanding machine, the shoe having bulbous ends over which ends of sandpaper applied to a cushioned bottom of the shoe are extended and clamped between a pair of jaws in over-center lever operable clamping mechanisms, the latter having projections for centralizing the lever in its support and abutments cooperable with the lever to restrain it in its actuated condition against vibratory release.

US Patent:

50836196, Jan 28, 1992

Filed:

Sep 25, 1989

Appl. No.:

7/411715

Inventors:

David A. Giardino - Utica NY
William K. Wallace - Barneveld NY
Joseph R. Groshans - Clinton NY

Assignee:

Chicago Pneumatic Tool Company - Utica NY

International Classification:

B23B 4516

US Classification:

173 93

Abstract:

A reversible powered impact wrench is provided wherein improvements are incorporated in the detenting of the reverse direction valve, venting of excessive air pressure within the impact wrench motor housing which may use light weight material due to improved clutch and camming means and wherein an improved one piece anvil-timing shaft is designed to be supported by the impact wrench hammer and rotor.

US Patent:

44971974, Feb 5, 1985

Filed:

Feb 18, 1983

Appl. No.:

6/467652

Inventors:

David A. Giardino - Deerfield NY
Joseph R. Groshans - Clinton NY
Kenneth A. McHenry - Clinton NY

Assignee:

Chicago Pneumatic Tool Company - New York NY

International Classification:

B21J 1534

US Classification:

7245317

Abstract:

A pneumatic hydraulic hand-held riveting tool having a pneumatic operative means arranged to generate pressure upon a hydraulic fluid whereby a rivet set plunger is brought into contact with a rivet to be set without deformation of the rivet, and being further arranged to generate hydraulic pressure on the rivet set plunger effective to set the rivet, as well as to provide rapid hydraulic pressure relief.

US Patent:

D3773027, Jan 14, 1997

Filed:

May 11, 1995

Appl. No.:

D/038653

Inventors:

Yutaka Kazamaki - New Hartford NY
Joseph Groshans - Clinton NY
Robert Sienkiewycz - Hamilton NY

Assignee:

Chicago Pneumatic Tool Company - Utica NY

US Classification:

D 8 61

US Patent:

44133960, Nov 8, 1983

Filed:

Sep 2, 1980

Appl. No.:

6/183424

Inventors:

William K. Wallace - Barneveld NY
David A. Giardino - New York NY
Joseph R. Groshans - Deerfield NY

Assignee:

Chicago Pneumatic Tool Company - New York NY

International Classification:

B23P 1906
G01L 524

US Classification:

29407

Abstract:

A method for tightening a fastener to yield point wherein areas under a torque-angle curve--each of said areas including a constant abscissa--are successively measured. A decrease of area in a subsequently measured area, indicates that yield point of the fastener has occured. Upon attainment of yield point, the final torque and angular rotation parameters are checked to determine if pre-set values have been realized. The method includes a preliminary torque-angle curve measurement to determine if certain conditions are satisfied; failure to satisfy such conditions, aborts the tightening operation.

US Patent:

55447104, Aug 13, 1996

Filed:

Jun 20, 1994

Appl. No.:

8/262638

Inventors:

Joseph R. Groshans - Clinton NY
Jeffrey Spooner - West Winfield NY
Seth A. Jones - Camden NY

Assignee:

Chicago Pneumatic Tool Company - Utica NY

International Classification:

B25B 2100

US Classification:

173176

Abstract:

The invention is an impulse wrench that employs a fluid coupling between its anvil and hammer members. The tool includes a pulse cylinder that forms the tool's hammer and has a shaped inner surface that defines a side wall of a fluid-filled chamber. An end portion of the anvil is received within the chamber and includes two retractable vanes that sweep the pulse cylinder's inner surface when the pulse cylinder is rotating about the anvil. To achieve only a single impact per revolution of the pulse cylinder, fluid bypass channels are employed to intermittently allow fluid to pass around the vanes. In addition, the tool includes a unique torque-sensing shut-off mechanism that is engaged to the tool's motor and makes use of inertia force to actuate a power shut-off device.

US Patent:

44675658, Aug 28, 1984

Filed:

Aug 2, 1982

Appl. No.:

6/404642

Inventors:

William K. Wallace - Barneveld NY
David A. Giardino - Deerfield NY
Joseph R. Groshans - Clinton NY

Assignee:

Chicago Pneumatic Tool Company - New York NY

International Classification:

B24B 2304

US Classification:

51170MT

Abstract:

A rotary orbital sander including a motor housing enclosing a motor, a drive shaft rotatable by the motor, which drive shaft has an off-set projecting portion, a pinion gear housing affixed to the motor housing, a carrier supported upon the shaft off-set projecting portion by two parallel arranged ball bearings, a sanding pad assemblage removably attached to the carrier, intermeshing spur gears arranged on the pinion gear housing and the carrier, a handle arranged for conduction of pressurized pneumatic medium to the motor, a throttle valve for regulation of pneumatic medium flow to the motor, a valve in the handle for cut-off of pneumatic medium to the throttle value, and a counter-balance weight affixed to the shaft off-set projecting portion, said weight being positioned so that its center of gravity of rotation is in the same plane as the center of gravity of rotation of--the carrier, the carrier supporting bearings and a sanding pad assembly attached to the carrier--said pinion gear housing having a circular cavity surrounding the carrier which is engageable by the carrier as it revolves, to provide rotational support for the carrier.

US Patent:

D3769690, Dec 31, 1996

Filed:

May 11, 1995

Appl. No.:

D/038654

Inventors:

Yutaka Kazamaki - New Hartford NY
Joseph Groshans - Clinton NY
Jeffrey Spooner - West Winfield NY
Seth Jones - Camden NY
Mark Tinklepaugh - Canastota NY

Assignee:

Chicago Pneumatic Tool Company - Utica NY

US Classification:

D 8 68