Metal reinforced seal plate for pilot actuated spool valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9822895
SERIAL NO

15606708

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Upper and/or lower seal plates of a sub plate mounted, pilot actuated spool valve are reinforced with one or more metal rings. In a number of preferred embodiments, the metal ring is comprised of steel. Portions of the seal plates may comprise an engineering thermoplastic such as polyoxymethylene (POM) sold by E. I. DuPont de Nemours under the DELRIN® trademark. The plastic material may be molded to the metal ring. In other embodiments, the plastic material and metal ring(s) are mechanically connected together.

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Patent Owner(s)

Patent OwnerAddress
HUNTING ENERGY SERVICES INCHOUSTON TX 77060-3236

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hollister, Frank Harold Sugar Land, US 13 32
Smith,, III Robert E Missouri City, US 48 166
Tipton, Dane Richmond, US 4 9
Watson, Richard R Missouri City, US 26 438

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