Lisle Corporation

Other

Dutro Company

Stephen Feilinger

Craig L Wallin

James L Pool

William A Dutro

Liquid storage vessel

Insulated ice bucket

A method for rotational molding uses a mold having first and second mold components defining therebetween a mold cavity. The first mold component includes a mold insert adapted to translate toward the second mold component. A spring-biased latch mechanism restrains the mold insert in the outward disposition, and a touch pad is struck to trigger the latch mechanism and urge the mold inwardly while the mold is rotating. In another aspect, the invention includes a method for rotational molding that employs the rotational mold described above. With the mold insert latched in the outward disposition, the rotational mold charged with thermoplastic material rotated biaxially and heated. After heating, while the mold assembly continues to rotate, the touch pad is struck to release the latch and cause the mold insert to move inwardly. The mold insert includes structural features that are moved more proximate to opposed mold portions.

Method for rotational molding with movable insert

An apparatus for rotational molding provides a mold having first and second mold components defining therebetween a mold cavity. The first mold component includes a mold insert adapted to translate toward the second mold component. A spring-biased latch mechanism restrains the mold insert in the outward disposition, and a touch pad is struck to trigger the latch mechanism and urge the mold insert inwardly while the mold is rotating. With the mold insert latched in the outward disposition, the rotational mold charged with thermoplastic material rotated biaxially and heated. After heating, while the mold assembly continues to rotate, the touch pad is struck to release the latch and cause the mold insert to move inwardly. The mold insert includes structural features that are moved more proximate to opposed mold portions.

Apparatus for rotational mold with movable insert

A mechanic's creeper includes a molded plastic platform with casters connected at the periphery of the platform. The platform includes molded indentations in its bottom layer which merge into the top layer in an array which enhances the structural integrity of the platform. The platform further includes distinct sections for support of head, shoulders, lumbar and buttocks of a user.

Mechanic's creeper construction

Mechanic's creeper

A folding table has a unitary table top formed of molded plastic preferably having an outer shell of non-cellular plastic with a filling of light weight hardened foam. Pairs of spaced apart sockets are formed in the table top material at the underside of the table top and a cylindrical bushing is disposed in each socket. One of a pair of pivotable leg assemblies is coupled to each pair of sockets by a pair of pivot axle projections that extend into the sockets and bushings. At least one of the sockets of each pair has a depth at least equal to the combined distances that the pivot axle projections extend into the pair of sockets. This enables entry of the pair of pivot axle projections into the pair of sockets by inserting one of the projections deeply into the one socket and then partially withdrawing that projection while guiding the other projection into the other socket of the pair. Table assembly is simplified as the legs are coupled directly to the table top without requiring installation of hinges or similar hardware.

Growing community of inventors

Logan, UT, United States of America

Craig L Wallin