Title:
METHODS OF MANUFACTURING GASKETS FROM PTFE SHEETS
Document Type and Number:
WIPO Patent Application WO/2017/132218
Kind Code:
A3
Abstract:
A method of forming gaskets from a sheet of material is disclosed. The method includes cutting one or more elongated strips from the sheet of material, such as by using a spiral cut. The elongated strip is then cut into segments, with the segments being placed in a gasket mold. The segments are placed in the gasket mold so that the ends overlap. Heat and/or pressure are applied to mold together the ends. The resulting gasket has only a single joint that is molded together rather than welded. Additionally, the manner in which the sheet of material is cut helps to maximize the amount of the sheet of material that is used to make gaskets.
Inventors:
MASLYN TOM (GB)
YOUNG JOSEPH (US)
EVANS WAYNE (US)
YOUNG JOSEPH (US)
EVANS WAYNE (US)
Application Number:
PCT/US2017/014867
Publication Date:
October 26, 2017
Filing Date:
January 25, 2017
Export Citation:
Assignee:
GARLOCK SEALING TECH LLC (US)
International Classes:
F16J15/02; B29C43/18; B29C65/70; F16J15/16
Domestic Patent References:
| WO1991004847A1 | 1991-04-18 | |||
| WO2001027501A1 | 2001-04-19 |
Foreign References:
| US5551706A | 1996-09-03 | |||
| US3264393A | 1966-08-02 | |||
| US4990296A | 1991-02-05 | |||
| US1574683A | 1926-02-23 | |||
| JPH10132081A | 1998-05-22 |
Attorney, Agent or Firm:
BRAIRTON, Scott, A. et al. (US)
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