Albert J Corey

US Patent:

7585357, Sep 8, 2009

Filed:

Mar 30, 2007

Appl. No.:

11/693250

Inventors:

Douglas E. Tanner - Germantown NY, US
Craig Busby - Sherman CT, US
Albert J. Corey - Poughkeepsie NY, US

Assignee:

Pawling Corporation - Pawling NY

International Classification:

G01N 1/00

US Classification:

96105, 95 89, 73 2341

Abstract:

A new septum for multiple use injection ports enabling the introduction of fluid materials by needle injection into a gas chromatograph or other system under positive pressure. The injection port utilizes a special septum to seal the port while accommodating passage of an injection needle. The septum is provided with an axial through passage, preferably of greater diameter than the injection needle. The septum, which is formed of elastomeric material, is placed under axial compression sufficient to inwardly displace the material surrounding the preformed opening, to tightly close and seal the opening against the pressure of the system. The septum may be penetrated multiple times by injection needles without coring or otherwise damaging the septum. Greater operating life is achieved and contamination of the system is minimized.

US Patent:

49324411, Jun 12, 1990

Filed:

May 18, 1988

Appl. No.:

7/195510

Inventors:

Albert J. Corey - Wappingers Falls NY
Edward R. Carlson - New Fairfield CT

Assignee:

The Presray Corporation - Pawling NY

International Classification:

F16L 5512

US Classification:

138 93

Abstract:

A pneumatically actuated nozzle dam or the like for placement internally of a passageway, enabling the passageway to be sealed off upon inflation of a pneumatically inflatable ring. The apparatus includes an elastomeric diaphragm provided with sidewalls projecting in a downstream direction and joined with sealing flaps surrounding the sidewall and projecting back in an upstream direction. An inflatable pneumatic element is positioned between the sidewall and sealing flap and connected to only one of them. Upon inflation, the sealing flap is forced against the walls of the passageway to provide a seal. If depressurization of the inflatable element occurs, the sealing flap is retained in operative position by pressure of the retained body of liquid on the upstream side of the seal. The new arrangement eliminates the need for redundancy of the pneumatic element and, at the same time, provides for greater safety.