Surgery – Truss – Perineal
Patent
1980-12-29
1983-06-28
Apley, Richard J.
Surgery
Truss
Perineal
13762414, A61H 700
Patent
active
043900135
ABSTRACT:
A percussor assembly having a gas inlet passageway, a gas outlet passageway, a gas sealing means therebetween, and a percussion member which is moved in response to gas pressure from the gas inlet passageway overcoming the gas sealing means, which gas pressure is then vented through the gas outlet passageway, includes a valve member for closing the gas inlet passageway when the gas pressure is vented through the gas outlet passageway.
REFERENCES:
patent: 1023267 (1912-04-01), Mock
patent: 1780876 (1930-11-01), Grosse
patent: 2398178 (1946-04-01), Ellison
patent: 2615463 (1952-10-01), Burns
patent: 2646039 (1953-07-01), Agosti
patent: 3396721 (1968-08-01), Mencacci
patent: 3648721 (1972-03-01), Skappel
Apley Richard J.
Brown David J.
Hudson Oxygen Therapy Sales Company
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