John F. Zwirlein

Person

New Haven, CT, US

People

Patents Grantslast 30 patents

Information Patent Grant
Valving rod with scraper device for foam dispensing apparatus
- Patent number 5,074,470
- Issue date Dec 24, 1991
- Olin Corporation
- William F. Rosenplanter
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Composite valving rod scraper device and cartridge
- Patent number 5,040,728
- Issue date Aug 20, 1991
- Olin Corporation
- John F. Zwirlein
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Air purge/solvent bath method
- Patent number 4,534,802
- Issue date Aug 13, 1985
- Olin Corporation
- William J. Gates
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Air purge/solvent bath apparatus and method
- Patent number 4,460,126
- Issue date Jul 17, 1984
- Olin Corporation
- William J. Gates
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polyurethane foam generating apparatus
- Patent number 4,204,977
- Issue date May 27, 1980
- Olin Corporation
- John F. Zwirlein
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Automatically controlled cleaning fluid circuit for a foam generati...
- Patent number 4,073,664
- Issue date Feb 14, 1978
- Olin Corporation
- John F. Zwirlein
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

John F. Zwirlein

Person

Patents Grantslast 30 patents

Valving rod with scraper device for foam dispensing apparatus

Composite valving rod scraper device and cartridge

Air purge/solvent bath method

Air purge/solvent bath apparatus and method

Polyurethane foam generating apparatus

Automatically controlled cleaning fluid circuit for a foam generati...