Gary W Howell

US Patent:

6355161, Mar 12, 2002

Filed:

Apr 14, 2000

Appl. No.:

09/549897

Inventors:

Dilip H. Shah - Buffalo Grove IL
Gary Howell - Elkton MD
Kenneth E. Pawlak - Vernon Hills IL
Masatoshi Ozono - Tokyo, JP
Wade Fournier - Spring Grove IL
Mete Alpan - LaGrange IL

Assignee:

Aksys, Ltd. - Lincolnshire IL
Teijin, Ltd. - Osaka

International Classification:

B01D 6128

US Classification:

210 91, 21032171, 210647, 206570, 2064591, 2064595, 215382, 220669

Abstract:

A set of bottles for containing dialysate chemical formulations, chemical cleaning agents or the like is described. The chemical formulation bottles come in two varieties, sodium bicarbonate and liquid acid formulations, each bottle having a slightly different shape. The different shapes cooperate with a bottle mounting structure in the dialysis machine to insure that bottles are correctly installed on their respective bottle opening mechanism. The bottles also have a detection feature comprising either a raised rim or groove extending around the periphery of the bottle. A sensor assembly in the bottle mounting and opening system detects the detection feature. The detection feature is used by the machine to distinguish between dialysate formulation bottles and chemical cleaning bottles, which do not have the detection feature. The detection feature prevents unintentional installation of the chemical bottle on the opening mechanism for the dialysate chemical formulation bottles. A chemical loading system for use with the bottles, and having a detection system for detecting the detection feature is also described.

US Patent:

7806820, Oct 5, 2010

Filed:

May 2, 2007

Appl. No.:

11/743360

Inventors:

Gary Wayne Howell - Norwood NC, US

International Classification:

B04B 9/14

US Classification:

494 82, 494 83, 494 84

Abstract:

An apparatus and method for automatic balancing and inertial damping of vibrations in a rotor are disclosed. According to one embodiment, a rotor drive shaft is adapted to mount a rotor and rotate the rotor. A lower drive shaft connects to a source of rotation. A flexible coupling attaches the rotor drive shaft to the lower drive shaft and transfers a rotational force applied by the source of rotation to the rotor while permitting relative lateral motion between the rotor drive shaft and the lower drive shaft. An inertial coupling is coupled to the rotor drive shaft and provides inertial resistance to the relative lateral motion. A clamping collar is coupled to the inertial coupling to couple the inertial coupling to a chassis and permit the relative lateral motion between the rotor drive shaft and the lower drive shaft.

US Patent:

55519415, Sep 3, 1996

Filed:

Jun 5, 1995

Appl. No.:

8/461466

Inventors:

Gary W. Howell - Elkton MD

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

B04B 502

US Classification:

494 16

Abstract:

A centrifuge instrument and a rotor therefor which is loaded with sample containers automatically by gravity through an opening in a cover located over a core and, subsequent to centrifugation, is unloaded automatically, again assisted by gravity, through an opening in a floor disposed beneath the core. A sample container loading arrangement is provided to hold a plurality of sample containers and to individually present sample containers to the rotor.

US Patent:

40020703, Jan 11, 1977

Filed:

Feb 26, 1975

Appl. No.:

5/553427

Inventors:

Gary W. Howell - Elkton MD

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

G01N 114

US Classification:

73422GC

Abstract:

Disclosed herein is an apparatus for injecting a quantity of sample liquid into a continuously flowing carrier liquid comprising a housing, a primary channel, carrier inlet and outlet means both connected to the primary channel to form a carrier conduit through the housing, sample inlet and outlet channels both connected to the primary channel to form a sample conduit through the housing, a normally closed pressure relief valve disposed in the primary channel between the sample conduit and the carrier conduit, and means to change the pressure differential between the liquid flowing in the sample and carrier conduits.

US Patent:

D4356497, Dec 26, 2000

Filed:

Oct 12, 1999

Appl. No.:

D/112250

Inventors:

Dilip H. Shah - Buffalo Grove IL
Gary Howell - Elkton MD
Kenneth E. Pawlak - Vernon Hills IL
Masatoshi Ozono - Tokyo, JP

Assignee:

Aksys, Ltd. - Lincolnshire IL
Teijin, Ltd. - Osaka

International Classification:

2401

US Classification:

D24108

US Patent:

D4356470, Dec 26, 2000

Filed:

Oct 12, 1999

Appl. No.:

D/112244

Inventors:

Dilip H. Shah - Buffalo Grove IL
Gary Howell - Elkton MD
Kenneth E. Pawlak - Vernon Hills IL
Masatoshi Ozono - Tokyo, JP

Assignee:

Aksys, Ltd. - Lincolnshire IL
Teijin, Ltd. - Osaka

International Classification:

2401

US Classification:

D24108

US Patent:

D4356489, Dec 26, 2000

Filed:

Oct 12, 1999

Appl. No.:

D/112249

Inventors:

Dilip H. Shah - Buffalo Grove IL
Gary Howell - Elkton MD
Kenneth E. Pawlak - Vernon Hills IL
Masatoshi Ozono - Tokyo, JP

Assignee:

Aksys Ltd. - Lincolnshire IL
Teijin, Ltd. - Osaka

International Classification:

2401

US Classification:

D24108

US Patent:

39511677, Apr 20, 1976

Filed:

Dec 5, 1974

Appl. No.:

5/530034

Inventors:

Gary W. Howell - Elkton MD
Danahey Ryan - Newark DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

F16K 1110

US Classification:

137608

Abstract:

Disclosed herein is a fluid handling assembly comprising a multi-valve assembly, a probe connected to a first valve structure in said multi-valve assembly, a plurality of secondary fluid sources connected to secondary valve in said multi-valve assembly and a pump connected to said multi-valve assembly. Each of the valves in the multi-valve assembly comprise valve seats, flexible diaphragms coacting with the valve seat to form leak-tight chambers containing orifices connecting the various channels in the valves, and a means to move the diaphragm to close off the connection between the orifices and thereby shut the valve.