Dwight L Gatzemeyer

US Patent:

6892467, May 17, 2005

Filed:

Dec 20, 2002

Appl. No.:

10/327032

Inventors:

Dwight Gatzemeyer - Lincoln NE, US

International Classification:

G01D021/00
B43L013/00

US Classification:

33613, 33422, 33424, 33451, 33471, 33644

Abstract:

An improved tool is provided for locating the corner or edge of a workpiece while setting the workpiece at a desired angle with respect to a work surface. An elongated arm member slidably engages an elongated base member at one end, allowing for the measurement of the distance between the opposite end portions of the arm and base member and calculation of the angle at which the workpiece is disposed. The base member is provided with generally opposing first and second mating surfaces for locating the corner or edge of the workpiece. Different embodiments are provided for use in finding edges of workpieces having various angles. Different embodiments further provide for the use of multiple measuring instrumentalities and calculations.

US Patent:

50054490, Apr 9, 1991

Filed:

Feb 14, 1990

Appl. No.:

7/480098

Inventors:

Joseph A. Sorensen - Lincoln NE
Dwight L. Gatzemeyer - Lincoln NE

Assignee:

Peterson Manufacturing Co., Inc. - DeWitt NE

International Classification:

B25B 1312
B25B 502

US Classification:

81152

Abstract:

A hand tool or clamp, which is operable with one hand, includes a fixed jaw and a movable jaw. The movable jaw connects at one end to a movable slide bar. One way drive means, by operation of a trigger handle, releasably engages the slide bar with advances the movable jaw toward the fixed jaw or away from the fixed jaw. Disengagement of the one way drive means will allow for manual return movement of the movable jaw.

US Patent:

52224201, Jun 29, 1993

Filed:

Apr 19, 1991

Appl. No.:

7/687823

Inventors:

Joseph A. Sorensen - Lincoln NE
Dwight L. Gatzemeyer - Lincoln NE

Assignee:

Petersen Manufacturing Co., Inc. - DeWitt NE

International Classification:

B25B 502
B25B 1312

US Classification:

81487

Abstract:

A hand tool consists of a movable jaw, a slide bar wherein the movable jaw is mounted to the slide bar. A support assembly is provided for supporting the slide bar. A stationary jaw is spaced away from the support assembly and is provided with at least a front portion. A one-way drive arrangement is designed having at least a driving lever. A cam having a longitudinally extending handle is pivotally mounted at the support assembly and contacts the driving lever. The cam disengages the driving lever when the one-way drive arrangement is released from the slide bar, and the cam engages the driving lever when the one-way drive arrangement engages the slide bar.

US Patent:

D3336026, Mar 2, 1993

Filed:

Feb 5, 1990

Appl. No.:

7/475088

Inventors:

Dwight L. Gatzemeyer - Lincoln NE
Joseph A. Sorensen - Lincoln NE

Assignee:

Petersen Manufacturing Co., Inc. - DeWitt NE

US Classification:

D 8 72

US Patent:

49267221, May 22, 1990

Filed:

Aug 19, 1988

Appl. No.:

7/234173

Inventors:

Joseph A. Sorensen - Lincoln NE
Dwight L. Gatzemeyer - Lincoln NE

Assignee:

Petersen Manufacturing Co., Inc. - DeWitt NE

International Classification:

B25B 502

US Classification:

81487

Abstract:

A bar clamp, which is operable with one hand, includes a fixed jaw and a movable jaw. The movable jaw connects at one end to a movable slide bar. One-way drive means, by operation of a trigger handle grip, releasably engages the slide bar and advances the movable jaw toward the fixed jaw. Return motion of the movable jaw is accomplished manually when the one-way drive means is disengaged. A braking lever, biased to bind against the slide bar, prevents reverse motion of the movable jaw except when disengaged from the slide bar. The trigger handle advances the slide bar by driving a second lever which binds against a slide bar surface. The second lever returns by spring force to its original position after each stroke of the trigger handle.

US Patent:

50221370, Jun 11, 1991

Filed:

Dec 14, 1989

Appl. No.:

7/450837

Inventors:

Joseph A. Sorensen - Lincoln NE
Dwight L. Gatzemeyer - Lincoln NE

Assignee:

Petersen Manufacturing Co., Inc.

International Classification:

B23Q 534

US Classification:

29559

Abstract:

A bar clamp, which is operable with one hand, includes a fixed jaw and a movable jaw. The movable jaw connects at one end to a movable slide bar. One-way drive means, by operation of a trigger handle grip, releasably engages the slide bar and advances the movable jaw toward the fixed jaw. Return motion of the movable jaw is accomplished manually when the one-way drive means is disengaged. A braking lever, biased to bind against the slide bar, prevents reverse motion of the movable jaw except when disengaged from the slide bar. The trigger handle advances the slide bar by driving a second lever which binds against a slide bar surface. The second lever returns by spring force to its original position after each stroke of the trigger handle.

US Patent:

51706822, Dec 15, 1992

Filed:

Jan 31, 1991

Appl. No.:

7/646397

Inventors:

Joseph A. Sorensen - Lincoln NE
Dwight L. Gatzemeyer - Lincoln NE

Assignee:

Petersen Manufacturing Co., Inc. - DeWitt NE

International Classification:

B25B 502

US Classification:

81487

Abstract:

A bar clamp having a fixed jaw and a movable jaw which is radially movable over both short and long distances to clamp against a workpiece and is operable using one hand with complete control by the operator at all times. The jaws may either face one another while being mounted on the same side of a handle/grip assembly or face in opposite directions while being mounted on opposite sides of the handle/grip assembly whereby they may be incrementally advanced by the trigger handle/driving lever. The movable jaw may also be a clamp jaw affixed to a handle assembly which moves toward a substrate.

US Patent:

D3288463, Aug 25, 1992

Filed:

Feb 5, 1990

Appl. No.:

7/475089

Inventors:

Joseph A. Sorensen - Lincoln NE
Dwight L. Gatzemeyer - Lincoln NE

Assignee:

Petersen Manufacturing Co., Inc. - De Witt NE

US Classification:

D 8 72