Pumps – Expansible chamber type – Mechanically actuated distributor
Patent
1982-11-29
1984-07-31
Freeh, William L.
Pumps
Expansible chamber type
Mechanically actuated distributor
417534, 92 31, 92 33, 92107, F04B 2102, F04B 3908
Patent
active
044627688
ABSTRACT:
The described air compressor has an annular piston received within a cylinder for reciprocal movement to drive pressurized air on both piston strokes to an outlet which is arranged in line with the air inlet and driving power source. A shuttle valve alternately opens and closes ports at opposite ends of the pump cylinder to accomplish valving for the pressurized air. Rotative drive applied to an axially located rotor within the compressor housing via a planetary gear assembly alternately drives the rotor in opposite directions. A gear on the rotor is drivingly related to gears located on two threaded shafts which pass through threaded openings in the piston. Accordingly, rotation of the rotor drives the annular piston from one extremity to another in the pump cylinder. The planetary gear mechanism interrelates the input drive shaft to the rotor with the direction of rotation being consecutively switched by shifting a spring clutch from the engaged to the non-engaged condition and back to the engaged condition.
REFERENCES:
patent: 465099 (1891-12-01), Rice, Jr.
patent: 787223 (1905-04-01), Schwabe
patent: 829279 (1906-08-01), Ripars
patent: 1089408 (1914-03-01), Ganderton
patent: 2262963 (1941-11-01), Procissi
patent: 3183792 (1965-05-01), Allen
patent: 4145166 (1979-03-01), Justice
Freeh William L.
Inotek-Westmoreland Venture
Netter George J.
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