Method of making a disposable dental tray or the like by combini

Details Method of making a disposable dental tray or the like by combini Method of making a disposable dental tray or the like by combini

1978-02-03

1979-11-06

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

433 89, 128136, 264 468, B29C 1703

Patent

active

041735056

ABSTRACT:
Disclosed is a method of manufacturing a laminated plastic article such as a dental tray or the like having a hydrophilic foam formed and heat bonded to a polyethylene foam substrate. The dental tray has upper and lower portions hinged together, and contoured to properly accommodate the particular tooth structure of the posterior and anterior teeth and the general geometry of the upper and lower jaws. In a vacuum forming operation a laminated sheet is formed, the tray is appropriately contoured and the tray cut or blanked from the sheet.

REFERENCES:
patent: 3148103 (1964-09-01), Gallagher
patent: 3577700 (1971-05-01), Bippus et al.
patent: 3589592 (1971-06-01), Tigner
patent: 3657044 (1972-04-01), Singer
patent: 3954537 (1976-05-01), Alfter et al.

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