Garlock Sealing Technologies, LLC

Garlock, Inc.

Stefan Pitolaj

Joseph D Young

Earl J Rogalski

Aydin Aykanat

T Scott Tanner

Michael P McNally

Jarod R Hammar

Erik Phelps

Allen F Horn, Iii

Christopher J Caisse

Patricia A LaFrance

A multi-layered lip seal comprising a dynamic layer optionally having a filler incorporated therein and a static layer optionally having a filler incorporated therein is described. The lip seal has an annular ring shape, wherein an inner diameter of the ring shape is curved in an axial direction so as to give the lip seal a J-shape when viewed from a cross-sectional perspective. Fillers that can be included in static layer include stiffening filler, reinforcement fillers, conductive fillers and/or abrasion resistance fillers. Fillers that can be included in the dynamic layer include wear resistance fillers. The use of specific fillers in specific layers of the multi-layered lip seal allows for certain segments of the lip seal to be imparted with the benefits of the filler without negatively impacting other segments of the lip seal.

Multi-layered PTFE radial lip seal

In an embodiment, a dielectric substrate comprises an unsintered polytetrafluoroethylene; and a high dielectric constant filler, wherein the dielectric constant of the high dielectric constant filler is greater than or equal to 35; wherein the dielectric substrate has a specific gravity of greater than or equal to 90% of a calculated theoretical density of the dielectric substrate, wherein the theoretical specific gravity is calculated based on a measured specific gravity of the high dielectric constant filler, the specific gravity of the unsintered polytetrafluoroethylene, and the relative weight fractions of the unsintered polytetrafluoroethylene and the high dielectric constant filler; and wherein the dielectric substrate has a dielectric constant of greater than or equal to 11.5 as determined at a frequency of 10 GHz.

Dielectric substrate comprising unsintered polytetrafluoroethylene and methods of making the same

A molded discrete low stress gasket is constructed of restructured filled PTFE for use in corrosive or severe chemical environments under relatively low bolt loads. The gasket has a gasket surface and includes a raised outer sealing ring and a raised inner sealing ring. The gasket may constructed from a restructured filled PTFE material, with the sealing rings deforming at lower pressures than the remaining portions of the gasket.

Low-stress molded gasket and method of making same

Gasket having raised sealing surface pattern

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Palmyra, NY, United States of America

Stefan Pitolaj