Turf gauge for measuring the hardness of a gold green

Details Turf gauge for measuring the hardness of a gold green Turf gauge for measuring the hardness of a gold green

1988-07-06

1989-12-19

Noland, Tom

Measuring and testing

Hardness

By penetrator or indentor

73 84, G01N 342

Patent

active

048874590

ABSTRACT:
The turf gauge includes a housing, a probe assembly which is spring biased within the housing with a probe to penetrate into a green and a scale member to indicate the depth of penetration of the probe. A handle of the turf gauge acts to lock the scale member in place so that a reading can be obtained after withdrawal of the gauge from the green. The construction of the turf gauge permits ready replacement of spacer rings for changing the pre-stress of the spring on the probe assembly.

REFERENCES:
patent: 1637421 (1927-08-01), Lipschutz
patent: 2117985 (1938-05-01), Ridenour
patent: 2130751 (1938-09-01), van der Meer
patent: 2421449 (1947-06-01), Zuber
patent: 3214966 (1965-11-01), Menzies
patent: 3498120 (1970-03-01), MacMillan
patent: 3782365 (1974-01-01), Pinna
patent: 4061021 (1977-12-01), Baldwin et al.
patent: 4116047 (1978-09-01), Hejkal
patent: 4136554 (1979-01-01), Larson
patent: 4302967 (1981-12-01), Dufey

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