Patrick G Nicolas

US Patent:

58977295, Apr 27, 1999

Filed:

Sep 12, 1997

Appl. No.:

8/928480

Inventors:

Benjamin Bikson - Brookline MA
Salvatore Giglia - Norwood MA
Patrick Samuel Nicolas - Needham MA
Cheryl Ann Ford - Wareham MA

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

B65H 8100

US Classification:

156172

Abstract:

The invention involves annular hollow fiber membrane bundle comprising a plurality of helically wound layers of semi-permeable hollow fibers helically wound thereon and at least one reinforcement filament which has been helically wound concurrently with said hollow fibers into the hollow fiber membrane bundle. A preferred embodiment provides that the reinforcement filament is uniformly distributed throughout the diameter of the bundle and/or across the axial length of the bundle. Though, other embodiments provide a non-uniform distribution throughout the diameter of the bundle and/or across the axial length of the bundle.

US Patent:

54116627, May 2, 1995

Filed:

Feb 25, 1994

Appl. No.:

8/201529

Inventors:

Patrick S. Nicolas - Needham MA
Benjamin Bikson - Brookline MA
Salvatore Giglia - Norwood MA
David R. Thompson - Grand Island NY

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

B01D 6300

US Classification:

2103218

Abstract:

The invention relates to a hollow fiber membrane fluid separation assembly having an integral purge control valve or a purge fluid reflux system, which provides a sweep fluid port internal to the assembly. This assembly is useful for, among other things, separating water vapor from a gas stream.

US Patent:

20100256623, Oct 7, 2010

Filed:

Mar 23, 2010

Appl. No.:

12/729802

Inventors:

Patrick Nicolas - Needham MA, US
Doreen Rao - Sudbury MA, US
Michael S.H. Chu - Brookline MA, US
John Petricca - Ashland MA, US

International Classification:

A61B 18/04

US Classification:

606 27

Abstract:

A thermal ablation device includes an elongated member sized and shaped for insertion into a uterus via a cervical opening. The elongated member defines a first lumen extending therethrough to a first distal opening which, when the apparatus is in an operative position, opens into the uterus and a seal positioned on the elongated member so that, when the elongated member is in the operative position, the seal engages cervical tissue around a circumference of the elongated member and prevent fluids introduced into the uterus via the first lumen from flowing therepast into the cervix. The seal includes a plurality of flexible members separated from one another along a length of the elongated member and projecting radially outward from an outer surface of the elongated member.