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US 5,758,371 AGranted
Self-propelled independent mechanical handling device
OwnerJohn Paul VanDyke, Irving Sangslandinventors
Life of this patent
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Abstract
A Handling Device for disabled patients or other heavy objects is disclosed herein. This device is totally mobile, self-contained, and is free from being attached to any permanent fixtures. Its features give increased maneuverability over prior art devices. Through use of the instant invention, patients need only to be rolled on their sides in order to be picked up and subsequently transported to various locations around the home or institution. The device is operable by the patient's themselves.
Claims20
A handling device which comprises:
- a) a base including a plurality of wheels;
- b) a vertical beam assembly attached to said base;
- c) a horizontal boom assembly having a front portion and a rear portion, said horizontal boom attached to said vertical beam so as to define the vertex of an angle alpha at the point of their intersection;
- and
- d) at least one device through which steering and propulsion are effectively controlled which comprises:
- i) a casing having a top portion, a bottom portion, and a wall portion;
- ii) a shaft rotably mounted within said casing, said shaft having upper and lower end portions;
- iii) a sprocket disposed on the upper end portion of said shaft;
- iv) a first gear disposed on the lower end portion of said shaft;
- v) an axle shaft extending essentially perpendicularly from said wall portion of said casing;
- vi) a drive wheel mounted to said axle shaft;
- vii) a second gear which is in mechanical contact with said wheel and which is disposed about said axle shaft such that said second gear is in meshing contact with said first gear;
- viii) means for holding said wheel on said axle shaft;
- ix) an outer frame housing which is rotably disposed about said casing;
- and
- x) means for causing rotation of said casing within said outer frame housing.
13 more elements
A device through which steering and propulsion may be controlled which comprises:
- a) a casing having a top portion, a bottom portion, and a wall portion;
- b) a shaft rotably mounted within said casing, said shaft having upper and lower end portions;
- c) a sprocket disposed on the upper end portion of said shaft;
- d) a first gear disposed on the lower end portion of said shaft;
- e) an axle shaft extending essentially perpendicularly from said wall portion of said casing;
- f) a drive wheel mounted to said axle shaft;
- g) a second gear which is in mechanical contact with said wheel and which is disposed about said axle shaft such that said second gear is in meshing contact with said first gear;
- h) means for holding said wheel on said axle shaft;
- i) an outer frame housing which is rotably disposed about said casing;
- and
- j) means for causing rotation of said casing within said outer frame housing.
8 more elements
Dependencies are inferred from the claim text.