Pick-up device for round products

Details Pick-up device for round products Pick-up device for round products

1979-09-17

1981-03-03

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Expanding

B66C 146

Patent

active

042536944

ABSTRACT:
A pick-up device for products having round portions which can be gripped frictionally, ranging from heavy metal products having bores or round holes to thin-walled drinking glasses having round peripheries, has a cylindrical part which can be positioned radially opposite to the round portion, either by insertion or encirclement, and having a circumferential groove radially facing the portion. A cylindrical elastic elastomer ring is positioned loosely in the groove and has axially extending lip seals slidably engaging the groove's sides. Fluid pressure introduced to the groove behind the ring causes the ring to elastically deform towards and frictionally grip the round portion of the product to be picked up, and by the resiliency of the ring, to release the portion when the pressure is terminated.

REFERENCES:
patent: 3166335 (1965-01-01), Mason
patent: 3233315 (1966-02-01), Levake

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