Method of making a shaft seal with dual lip

Details Method of making a shaft seal with dual lip Method of making a shaft seal with dual lip

1975-01-27

1977-07-26

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

156245, 264265, 264268, 264269, 264273, 264274, B29D 300, B29H 300

Patent

active

040383598

ABSTRACT:
A shaft seal of the type including a metal case and a polytetrafluoroethylene sealing element, is provided with an auxiliary sealing lip by providing a radial flange of the metal case with a plurality of circumferentially spaced-apart apertures therethrough and molding an annular filler ring of synthetic rubber in the space between the sealing element and the metal case such that the rubber also flows through the apertures to the other side of the radial flange of the metal case and forms an auxiliary lip there. The filler ring chemically bonds to the metal case and mechanically bonds to the sealing element to lock the sealing element in place while also forming an auxiliary lip.

REFERENCES:
patent: 2717793 (1955-09-01), Nenzell
patent: 2804324 (1957-08-01), Stallings
patent: 2804325 (1957-08-01), Riesing
patent: 2955481 (1960-10-01), Jackel
patent: 3194570 (1965-07-01), Haynie et al.
patent: 3241845 (1966-03-01), Smith et al.
patent: 3306622 (1967-02-01), Liebig
patent: 3462333 (1969-08-01), McCormick
patent: 3549445 (1970-12-01), McMahon
patent: 3658395 (1972-04-01), Hallerback
patent: 3929341 (1975-12-01), Clark
Mayer et al., "Phosphate Coatings", Metal Finishing Guidebook & Directory, Metals & Plastics Pub. Inc., Westwood, N.J. (1972), pp. 590 and 592-594.

Affiliated with

Also associated with

Rating

Method of making a shaft seal with dual lip does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making a shaft seal with dual lip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a shaft seal with dual lip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-726557