Abstract: A method and apparatus for attaching an insert in an opening in a molded thermoplastic body. The insert includes a thermoplastic mounting portion which is fused with the thermoplastic material of the body. The insert is maintained in a spaed position from the opening during the heating portion of the molding cycle and positioned within the opening while the thermoplastic material is still sufficiently hot to fuse with the thermoplastic mounting portion of the insert.
Type:
Grant
Filed:
February 13, 1990
Date of Patent:
February 19, 1991
Assignee:
Essef Corporation
Inventors:
Michel Liekens, Edward T. LeBreton, Arthur M. Kepler
Abstract: Manufacture of granulated self-sintering carbonaceous pulverulent body suitable for precise complicated molding in high speed productivity is conducted in the presence of a wetting agent and a binding agent in the water-pulverulent mixture by using spray drying machine in the atmosphere of the hot air kept at a temperature up to 200.degree. C. optionally in admixture with superheated steam kept at a temperature up to 200.degree. C.
Type:
Grant
Filed:
September 19, 1988
Date of Patent:
January 15, 1991
Assignee:
Mitsubishi Petrochemical Company Limited
Abstract: The present invention reduces within a short period of time the internal stresses in plastics bottles by annealing with infra-red radiation, in particular by specifically exposing critical points to radiation.
Type:
Grant
Filed:
September 24, 1984
Date of Patent:
June 10, 1986
Assignee:
Bayer Aktiengesellschaft
Inventors:
Klaus Heidenreich, Hans-Werner Depcik, Hans Radojewski
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