Edward F Case

US Patent:

45598622, Dec 24, 1985

Filed:

Apr 6, 1982

Appl. No.:

6/366107

Inventors:

Edward M. Case - Weston CT
Chester S. Hopper - Newtown CT

Assignee:

The Marlo Company Incorporated - Newton CT

International Classification:

D06P 700

US Classification:

87 1

Abstract:

A packing material comprises glass or other inorganic fibers in combination with organic fibers such as sintered polytetrafluoroethylene (TFE) or other selected fibers with or without an impregnant, a preferred impregnant being a lubricant with a binder. Ceramic fiber or quartz fiber can be substituted for glass fiber. Specific metal disulfides or talc can be substituted for the dispersed graphite and dispersed polytetrafluoroethylene (TFE) can be used as a binder for the lubricant. Aramid, polyethylene, polypropylene, graphite, carbon, vegetable, nylon or rayon fibers or filaments can be substituted for the sintered TFE fiber in combination with inorganic fiber.

US Patent:

44316984, Feb 14, 1984

Filed:

Sep 30, 1982

Appl. No.:

6/430417

Inventors:

Edward M. Case - Weston CT
Chester S. Hopper - Newtown CT

International Classification:

B65D 5306
F16C 3320
F16J 1516

US Classification:

428244

Abstract:

A low-friction, water- and steam-resistant packing suitable for both static and dynamic applications includes inorganic fiber selected from the group consisting of chemical, electrical, structural and alkali resistant glasses, ceramic, quartz, carbon and graphite materials, and dispersed and dried, but unsintered, polytetrafluoroethylene (TFE). The packing is essentially free of wetting agent and is prepared by combining the inorganic fiber with a TFE dispersion containing a wetting agent and heating the resulting combination to a temperature high enough to decompose the wetting agent but insufficiently high to sinter the particles of the dispersion.

US Patent:

43711804, Feb 1, 1983

Filed:

Mar 24, 1980

Appl. No.:

6/133048

Inventors:

Edward M. Case - Weston CT
Chester S. Hopper - Newtown CT

Assignee:

The Marlo Company Incorporated - Newton CT

International Classification:

F16J 920
F16J 1522

US Classification:

277230

Abstract:

A gasket material combines a braided organic fiber sleeve for conformability with a vitreous fiber sleeve for reinforcement thereof. The gasket material is impregnated with polytetrafluoroethylene as a sealant. In another embodiment a sleeve is braided of yarn containing both inorganic and organic fibers, the different fibers being spun or twisted together. The reinforcement provided by the vitreous fiber makes it possible to use the gasket material to retain fluid at higher pressures than is possible with organic fiber alone. Gasket arrangements are disclosed which provide against leakage at the cut ends of the gasket material. Preferred organic fibers are polytetrafluoroethylene and aramid. Preferred vitreous fibers are electrical, structural and chemical grades glass fiber.