Dietrich E Wienss

US Patent:

51311607, Jul 21, 1992

Filed:

Aug 6, 1991

Appl. No.:

7/740897

Inventors:

Heinz Proell - Brookfield WI
Dietrich Wienss - Pewaukee WI
John Fischer - Wauwatosa WI

Assignee:

Dreier Corporation - Brookfield WI

International Classification:

G01B 500

US Classification:

33519

Abstract:

The invention is directed to an adaptor device suitable for use with a measuring apparatus to determine the centrality to the centerline of a Woodruff keyway in a shaft. The adaptor allows the measuring apparatus to rest on the top surface or outside diameter of the shaft so that the measuring apparatus can be used to measure the centrality of the side walls to the centerline of the keyway. Accordingly, the measuring apparatus can operate without reference to the bottom of the keyway due to the use of the adaptor of the present invention which is connected to the measuring apparatus. The adaptor can be structured so that it is usable with a measuring apparatus to measure keyways of varying sizes in shafts of varying sizes.

US Patent:

49707990, Nov 20, 1990

Filed:

Apr 23, 1990

Appl. No.:

7/513062

Inventors:

Heinz Proell - Brookfield WI
Dietrich Wienss - Pewaukee WI
John Fischer - Wauwatosa WI

Assignee:

Dreier Corporation - Brookfield WI

International Classification:

G01B 500

US Classification:

33519

Abstract:

A device for measuring the centering, parallelism, and perpendicularity of the side walls of a keyway to the centerline of the keyway in a shaft is described. The preferred embodiment of the device includes a micrometer slidingly attached to the device, a horizontal indicator dial slidingly attached to the device and connected to a horizontally extending probe which is positionable in a shaft keyway, a vertical indicator dial slidingly attached to the device and connected to a vertically extending probe positionable in a shaft keyway, and two stationary legs extending downward from the device for seating in a shaft keyway. In operation, the horizontal indicator dial and horizontal probe are utilized to check the centering and parallelism to the centerline of the keyway and the vertical indicator dial and vertical probe are utilized to check the perpendicularity of the keyway side walls to the centerline of the keyway. The indicator dials and the micrometer indicate the accuracy of the cut and any variations which may be present thereby indicating the corrections required.

US Patent:

58036768, Sep 8, 1998

Filed:

Mar 20, 1996

Appl. No.:

8/618851

Inventors:

Dietrich E. Wienss - Pewaukee WI

International Classification:

B23G 500

US Classification:

408 1R

Abstract:

A thread repair tool and method of manufacturing are disclosed, along with a method for repairing damaged threads of a bolt, stud, or the like. The thread repair tool includes a pair of chaser sections each having a threaded inner diameter to match the threads of the bolt or stud to be repaired. Each chaser section has a tapered outer diameter and a longitudinal keyway in the tapered outer diameter. A driver is provided in which its inner diameter is tapered to match the outer diameter of the chaser sections. The tapered driver and chaser sections are locked together with a pair of keys, and the arrangement provides positive, force transferring engagement between the driver, the chaser sections, and the bolt or stud. The arrangement translates longitudinal pressure applied to the driver into radial pressure forcing the chaser sections tightly against the bolt or stud to be repaired. Once assembled, the thread repair tool is drawn over the damaged area of the bolt or stud and straightens the threads to restore the useability and integrity of the bolt or stud.