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US 4,397,491 AGranted
Portable vacuum object handling device
OwnerGordon H. Andersoninventor
Life of this patent
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Abstract
The disclosure relates to a portable device adapted to handle objects which are not to be touched by hand. A piston and bore wall form a vacuum chamber communicating with an adaptor sealably engageable with an object to be lifted. The piston is manually moved and set to establish vacuum. A valve is manually actuatable to apply the vacuum to lift the object.
Claims3
A hand held vacuum holding apparatus comprising:
- an elongated housing fittable in a user's hand comprising a generally cylindrical bore wall longitudinally disposed therein;
- a piston sealably and slidably engagable with said bore wall disposed therein;
- means for moving said piston reciprocally within said bore wall;
- means for locking said piston in at least one position;
- a piece engaging member communicating with said bore wall, said member comprising a conduit relatively small compared to said bore wall;
- valve means operably connected to said member for opening and sealing said conduit therein;
- a removable adapter sealably fittable with an object to be held communicating with said piece engaging member;
- a vacuum gauge communicating with said member for providing a reading of the vacuum present within said apparatus;
- and
- a radiation shield disposed about the housing for protecting a user's hand from radiation from an object being held.
7 more elements
Dependencies are inferred from the claim text.