Patent · US Expired

Heating mechanism for zipper forming machines

US5698239A · kind A · utility

3Cited by
10References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 3, 1996
Grant dateDec 16, 1997
Priority date
Expiry dateMay 3, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S425/814
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A heating mechanism for zipper forming machines includes a mold base, a support seat, a seat cover, a screw sleeve and a heating element. The support seat has a clearance at a central portion and a heat insulation pad is fitted into the clearance for dividing the support seat into a heating area and a cooling area. The heating element is disposed in the heating area and a cooling element is disposed at the cooling area for enhancing heat energy efficiencies and reducing noise.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.