David J Zawilinski

US Patent:

20050263946, Dec 1, 2005

Filed:

Aug 31, 2004

Appl. No.:

10/930329

Inventors:

David Zawilinski - West Granby CT, US
W. Dean - Simsbury CT, US

International Classification:

F16F013/00

US Classification:

267140120

Abstract:

A damped spring assembly includes a helical spring. The helical spring is movable along an axis and has a winding direction. A damper is movable along the axis and includes a helical shape. The damper is wound in a direction opposite the winding direction. The damper applies a radial load to the spring for damping movement of the spring along the axis as the spring vibrates. The damper has a very low axial spring rate and it contributes very little to the axial load provided by the spring.

US Patent:

20230035816, Feb 2, 2023

Filed:

Jul 30, 2021

Appl. No.:

17/390847

Inventors:

- Charlotte NC, US
John M. Dehais - Windsor CT, US
David J. Zawilinski - West Granby CT, US

International Classification:

F02C 6/08
F16D 3/32
F16K 31/46

Abstract:

A manual positioning assembly for connection to a shaft of a valve configured to manually manipulate a disc of the valve between an open and closed position. The manual valve positioning assembly includes a housing having a first and a second end. The first end includes a flange configured for fastening the housing to the valve. The second end includes a conical feature. An alignment bushing within the second end of the housing and a double universal joint. The double universal joint includes a first end and a second end. The first end of the double universal joint is configured to be mechanically fastened to the shaft of the valve. The second end is positioned within the alignment bushing and includes a socket configured to receive a tool that manually turns the double universal joint, the shaft, and the disc to position the disc in the open or closed position.