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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
KOP-COAT INC 436 SEVENTH AVE 1824 KOPPERS BLDG PITTSBURGH PA 15219 A CORP OF DE	Not Provided

International Classification(s)

• A01N:PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLA....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ward, Hans A	New Kensington, PA	15	121
# of filed Patents : 15 Total Citations : 121

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Patent Citation Ranking

• 39 Citation Count
• A01N Class

• 0 % this patent is cited more than
• 35 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 8025760

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Abstract

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A fluid transfer apparatus for bulk material is disclosed. The transfer apparatus includes a rotor mounted on a rotatable shaft and including axially extending flow channels extending through the rotor parallel to the shaft, flow connectors for connecting a low-pressure flow of fluid and a high-pressure flow of fluid into and out of the axially extending flow channels, a casing enclosing the rotor, a pair of axially sealing plates disposed between the ends of the rotor and the casing, a pressurizing fluid fed into the chamber defined by the casing to pressurize the rotor, the flow connectors, and the axially movable sealing plates.

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Description

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Claims

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Legal Events

 

• I2013
• F2011
• PD2011

Date	Code	Event	Description
Apr 30, 2013	I	Issuance
Jun 23, 2011	F	Filing
Feb 09, 2011	PD	Priority Date