Arjo Limited

Arjo. Med. Aktiebolag Limited

Philip Von Schroeter

John Greaves

Raymond Charles Williams

The invalid lifting device comprises a first mast upstanding from a first elongate chassis member and a second mast upstanding from a second elongate chassis member which is parallel or substantially parallel to the first chassis member. The lifting device also comprises a lifting arm supported by and extending between the first and second masts, the lifting arm comprising two parts pivotable relative to one another so that the distance between the masts can be varied. One part is supported by the first mast and the other part is supported by the second mast. Power operated means are provided for moving the two chassis members towards and away from one another. Each part of the lifting arm comprises a parallelogram linkage to maintain the chassis members in parallel or substantially parallel relationship as the two chassis members are moved towards and away from one another. Each mast may be telescopically extendible/retractable and power operated means may be provided for extending and retracting the two masts in synchronism with one another.

Invalid lifting device

An invalid positioning device comprising a support structure, a lifting element which is angularly displaceable about a main horizontal axis relative to the support structure, and a power operated mechanism for pivoting the lifting element about the the main horizontal axis. The power operated mechanism is arranged such that the torque applied by the power operated mechanism decreases as the lifting element moves away from one extreme position and increases again as the lifting element approaches its other extreme position and such that the angular speed of the lifting element increases as it moves away from one extreme position and decreases as it approaches its other extreme position.

Invalid positioning device

An invalid hoist comprises a mast, a lifting arm which can be raised and lowered by telescopically extending and retracting the mast and/or by raising and lowering a carriage, which may support the lifting arm, relative to the mast, and a load cell on the lifting arm for providing a signal representative of the weight of a person being lifted. The lifting arm is connected to the mast or the carriage by an arrangement which allows the lifting arm to be displaced angularly in a vertical plane against a spring force in order to maintain the load cell in a constant orientation as a vertical load is applied to the lifting arm.

Invalid hoists

A chassis comprises two legs extending in parallel spaced apart relationship and a cross member connecting the two legs together. The cross member comprises first, second and third tubular members. The second member is telescopically extendible and retractable in the first member and the third member is telescopically extendible and retractable in the second member. A linear actuator is provided for extending and retracting the second and third members in opposite directions relative to the first member.

Growing community of inventors

Haresfield, United Kingdom

Philip Von Schroeter