Curling stone comparator

Details Curling stone comparator Curling stone comparator

1997-02-21

1999-01-12

Williams, Hezron

Measuring and testing

Testing by impact or shock

Accelerated or decelerated specimen

73 1209, 738659, 124 61, 273129AP, G01N 3300

Patent

active

058593594

ABSTRACT:
A simple pneumatic device for use in comparing and matching curling stones, and evaluating ice surfaces and sweeping broom efficiencies is described. A pneumatic cylinder, charged by means of a compressed gas, is placed against the backboard of a rink and operated to propel a curling stone with a predetermined and accurately controlled force along a sheet of curling ice.

REFERENCES:
patent: 3507264 (1970-04-01), Whitmore et al.
patent: 3608211 (1971-09-01), Carr
patent: 3665910 (1972-05-01), Boni
patent: 3777548 (1973-12-01), Nicolaides
patent: 3793874 (1974-02-01), Shockey et al.
patent: 4086902 (1978-05-01), Reynolds
patent: 4557483 (1985-12-01), Kimura
patent: 5337726 (1994-08-01), Wood
patent: 5535627 (1996-07-01), Swanson et al.
patent: 5647338 (1997-07-01), Martin

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