Device for measuring the static and/or dynamic friction...

Details Device for measuring the static and/or dynamic friction... Device for measuring the static and/or dynamic friction...

2005-02-15

2005-02-15

Williams, Hezron (Department: 2856)

Measuring and testing

Frictional resistance, coefficient or characteristics

Reexamination Certificate

active

06854316

ABSTRACT:
A device for measuring the static and/or dynamic friction coefficient of a surface, in particular a natural or artificial grass surface, in which the device includes a frame to which a first arm is pivotally connected with one side, which first arm is pivotally connected at its other side to a bar fitted with a body having a surface which can be placed into contact with the surface to be measured, wherein the bar is furthermore connected to an element for exerting thereon a torque which acts about the pivot point thereon, and wherein loading elements are furthermore present for exerting a force on the bar in the direction of the surface to be measured, wherein the bar is furthermore provided with an element for measuring forces occurring in the bar, which element is present at a point located between the pivot point with the first arm and the side which is capable of carrying said body.

REFERENCES:
patent: 4098111 (1978-07-01), Hardmark et al.
patent: 4194387 (1980-03-01), Hofbauer et al.
patent: 4315426 (1982-02-01), Brandon
patent: 4722218 (1988-02-01), Strader
patent: 5259236 (1993-11-01), English
patent: 5734088 (1998-03-01), Gunderson
patent: 6463784 (2002-10-01), Kashiwagi et al.
patent: 4201124 (1993-07-01), None

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