John W Griffiths

US Patent:

6357048, Mar 19, 2002

Filed:

Jan 17, 2001

Appl. No.:

09/760650

Inventors:

John M. Griffiths - Montgomery NY 12549

International Classification:

B63C 1104

US Classification:

2 217

Abstract:

A rubber divers garment with a zip-out front panel flap bounding within the zipper track a relatively large opening approximately coincident in size to the size of the front panel of the upper torso of the garment, which opening by its size and the enlargement thereof afforded by the stretch of the rubber construction material of the garment, readily permits the diver to project arms, legs and neck respectively into the sleeves, leggings and hood seal of the garment without the assistance of another.

US Patent:

6490883, Dec 10, 2002

Filed:

Jun 12, 2001

Appl. No.:

09/879016

Inventors:

Jean-Philippe Trembley - Allentown PA
John Louis Griffiths - Bethlehem PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

F25J 100

US Classification:

62637, 62642, 62908

Abstract:

Volatile compounds (âVCsâ), especially volatile organic compounds (âVOCsâ), are cryogenically removed from a process gas stream (p ) by cooling the gas stream in a condenser to condense the VC to form both liquid VC and VC ice and providing a treated process gas essentially freed of the VC but containing entrained VC ice particles, which are subsequently removed by passing the treated process gas through a filter downstream of the condenser to remove at least particles of a size greater than 50 m. The condensation can be conducted in an indirect heat exchanger or by direct contact of the process gas with a liquid cryogen such as liquid nitrogen. It is preferred that the filter removes VC ice particles greater than 1 m.

US Patent:

D483091, Dec 2, 2003

Filed:

Aug 15, 2002

Appl. No.:

29/165731

Inventors:

John M. Griffiths - Montgomery NY 12549
Darrin E. Milne - Mahwan NJ 07430

International Classification:

2205

US Classification:

D22137

US Patent:

6735980, May 18, 2004

Filed:

Jan 4, 2002

Appl. No.:

10/039866

Inventors:

Stephen John Cook - Macungie PA
John Louis Griffiths - Pittsburgh PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

F25J 304

US Classification:

62640, 62925, 252372, 423210

Abstract:

A method for recovering krypton and xenon from air comprises (a) separating an air feed stream into oxygen-enriched and nitrogen-enriched product streams; (b) reacting the oxygen-rich product stream with a hydrocarbon feed in a synthesis gas generation process to yield a synthesis gas stream comprising hydrogen, carbon oxides, krypton, and xenon, which synthesis gas stream contains essentially no oxygen; (c) introducing the synthesis gas stream into a synthesis gas conversion process and converting the synthesis gas stream into a liquid synthesis product stream and an unreacted synthesis gas stream; (d) recycling at least a portion of the unreacted synthesis gas stream to the synthesis gas generation process; (e) reducing the pressure of the liquid synthesis product stream to yield a two-phase reduced-pressure product stream, and separating the two-phase reduced-pressure product stream into a final liquid synthesis product stream and a gas stream enriched in krypton and xenon; and (f) separating the gas stream enriched in krypton and xenon into a purge gas stream and a gas product stream further enriched in krypton and xenon.

US Patent:

D500545, Jan 4, 2005

Filed:

Mar 26, 2003

Appl. No.:

29/178478

Inventors:

John M. Griffiths - Montgomery NY, US

International Classification:

2102

US Classification:

D21804, D21801

US Patent:

20060242804, Nov 2, 2006

Filed:

Apr 28, 2005

Appl. No.:

11/118255

Inventors:

John Griffiths - Montgomery NY, US

International Classification:

A44B 19/26

US Classification:

024431000

Abstract:

A three-dimensional zipper pull tab attachment mechanism providing an enlarged gripping surface for facilitated location and manipulation of a pull tab, which is particularly useful in connection with diving equipment and by those having limited finger dexterity. The body of the pull tab attachment comprises mating male and female components, wherein male component comprises a locking arm sized for insertion through a zipper pull tab aperture and dimensioned to matingly engage the female component by way of a correspondingly shaped channel region extending at least partially therethrough. Upon appropriate engagement of male locking arm with a zipper pull tab and female component, a three-dimensional pull tab attachment having an enlarged gripping surface depends from the pull tab. The body of the pull tab attachment in an assembled condition, wherein male and female components are interconnected, may either include faces or a curved surface.

US Patent:

D473371, Mar 30, 1999

Filed:

Jan 26, 1998

Appl. No.:

D/082563

Inventors:

John Griffiths - Montgomery NY

International Classification:

1004

US Classification:

D10 85

US Patent:

59801581, Nov 9, 1999

Filed:

Oct 27, 1998

Appl. No.:

9/179636

Inventors:

John M. Griffiths - Montgomery NY
John Thomas Crea - Panama City FL

International Classification:

B63C 1102
B63C 908

US Classification:

405186

Abstract:

A buoyancy compensation device has a plurality of guide assemblies disposed about its outer and inner periphery, such that a plurality of resilient bands can each be disposed in a pair of complementary guide assembles, the bands biased to restrain expansion of the bladder when deflated or partially inflated to reduce drag, increase comfort and improve air distribution.