Measuring and testing – Speed – velocity – or acceleration – With means for retaining reading
Patent
1975-08-25
1977-03-22
Woodiel, Donald O.
Measuring and testing
Speed, velocity, or acceleration
With means for retaining reading
G01L 706
Patent
active
040129608
ABSTRACT:
A pressure gauge adapted to sense the level of fuel in a tank comprises a case having a pressure inlet conduit secured thereto and an expansible and contractible bellows attached to the conduit and communicating internally therewith. The indicating means is movably mounted in the case and connected to the bellows for visually indicating the level of fuel in a tank in response to expansion and contraction of the bellows. In a first embodiment of this invention, the indicating means constitutes a color wheel rotatably mounted in the case and connected to the bellows by a rack and pinion gear arrangement. In a second embodiment thereof, the indicating means constitutes a color card secured to the bellows for reciprocal movements therewith. In a third embodiment of this invention, the indicating means constitutes a dial pivotally mounted on the case and connected to the bellows by a lost motion pin and slot connection.
REFERENCES:
patent: 1174232 (1916-03-01), Copeland
patent: 1274932 (1918-08-01), Paryzek
patent: 1391077 (1921-09-01), Richter
patent: 1406200 (1922-02-01), MacMichael
patent: 1411917 (1922-04-01), Harris
patent: 1696810 (1928-12-01), Mono
patent: 2190530 (1940-02-01), Clarkson
patent: 3523451 (1970-08-01), Kohn
patent: 3677218 (1972-07-01), Dixon et al.
Caterpillar Tractor Co.
Woodiel Donald O.
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