Beds – Sofa bed – Reverting back
Patent
1987-12-15
1990-04-03
Trettel, Michael F.
Beds
Sofa bed
Reverting back
5 63, 296 20, A61G 102
Patent
active
049127870
ABSTRACT:
A stretcher for supporting incapacitated individuals that may be selectively positioned by two pairs of hydraulic cylinders located near each end thereof is shown. The piston rods associated with each such pair, located together with their respective cylinders on opposite sides of the stretcher, are mechanically interconnected for stability, while the cylinders associated with such pairs are hydraulically interconnected so that the cylinders can operate in tandem. The cylinder pairs each have their own pumps, operated simultaneously by a foot lever, as well as remotely controlled valving, enabling the pairs to be operated together, or independently of each other. Included pressure relief valving avoids equipment-damaging, excessive hydraulic pressures, and certain adjustable components of the stretcher are provided with spring-loaded tapered lock assemblies which allow the components to be secured in selected positions. X-ray tops are also taught which can be used in conjunction with the stretcher for X-ray examination.
REFERENCES:
patent: 1704979 (1929-03-01), Kusterle et al.
patent: 2014244 (1935-09-01), Bramlett
patent: 2387940 (1945-10-01), Page
patent: 2621574 (1952-12-01), Thomas
patent: 3253284 (1966-05-01), St. John
patent: 3393004 (1968-06-01), Williams
patent: 3813712 (1974-06-01), Bonnin
patent: 3820838 (1974-06-01), Limpach
patent: 3947686 (1976-03-01), Cooper et al.
patent: 3993051 (1976-11-01), Maruyama
patent: 4145612 (1979-03-01), Cooper
patent: 4175783 (1979-11-01), Pioth
patent: 4186456 (1980-02-01), Huempfner
patent: 4299209 (1981-11-01), Behrens et al.
patent: 4566445 (1986-01-01), Jelsma et al.
Beta Medical Products
Trettel Michael F.
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