Plastic rock making machine

Details Plastic rock making machine Plastic rock making machine

2006-07-25

2009-10-13

Gupta, Yogendra (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Pottery wheel type support and profile

Rotatable profile tool

C425SDIG041, C425SDIG046, C425S407000, C425S411000

Reexamination Certificate

active

07600991

ABSTRACT:
An apparatus for converting expended thermoplastic material, specifically empty plastic bottles, into artificial rocks, by placing the empty thermoplastic bottle in the apparatus between two sliding carriages, on each of which a rock has been mounted; and each carriage attached to a hydraulic jack, which, when the handle is pumped, moves the carriage toward the bottle which has been heated to malleability by heat lamps mounted above and sideways to the bottle, and the said heated, flexible bottle is squeezed between the two rocks mounted on the carriages, and then the bottle is rotated and the process repeated to give the bottle a rock shape. The rock shape may be further altered using a portable heat gun.

REFERENCES:
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patent: 3836619 (1974-09-01), Volent
patent: 4678617 (1987-07-01), Sykes
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patent: 5047194 (1991-09-01), Roufs et al.
patent: 5372676 (1994-12-01), Lowe
patent: 5543100 (1996-08-01), Kluh et al.
patent: 5588196 (1996-12-01), Samuelson
patent: 5817162 (1998-10-01), Penrith
patent: 5911927 (1999-06-01), Roberts
patent: 6132820 (2000-10-01), Callahan

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