Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent
1981-04-16
1984-05-29
Chambers, A. Michael
Fluid handling
With indicator, register, recorder, alarm or inspection means
Position or extent of motion indicator
1374938, 13751615, 137524, F16K 3700
Patent
active
044508611
ABSTRACT:
Compressed gas saving device designed to be implanted in a pipe system connecting a control valve outlet to the inlet of a pressure-user apparatus constituted by a body in which a first passage is provided which passage starts from a first end of the body, provided with means connecting it to the control valve, towards a second end of the body, provided with means connecting it to the said pipe system, the first passage traversing a seat provided in the said body, and adapted to be closed off by a valve returned on the said seat by a spring member, the effect of which is adjustable in intensity by means of a hand-operated adjusting member and tends to oppose the rising force of the valve head generated by the gas flowing from the control valve, whereas a second passage, provided in the body, constitutes a bias of the said first passage, short-circuiting the aforesaid valve head provided with a one-way valve whose flowing direction is that of the gas issued from the pressure-user apparatus, the said adjusting member controlling an indicator means in the form of a visual indicator which is instantly locatable in relation to the external surface of the said body.
REFERENCES:
patent: 1583834 (1926-05-01), Humphrey
patent: 2321679 (1943-06-01), Houston
patent: 2536505 (1951-01-01), Kircher
patent: 3099997 (1963-08-01), Kroffke
patent: 3342208 (1967-09-01), Steffes
patent: 3865133 (1975-02-01), Alford
patent: 4195552 (1980-04-01), Neff
patent: 4197874 (1980-04-01), Neff
patent: 4279271 (1981-07-01), Neff
Machine Design, vol. 31, No. 10, p. 166, May 1959.
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