Injection septum

Details Injection septum Injection septum

1989-10-25

1990-09-04

Spitzer, Robert

Gas separation

With remote fan or pump and unconfined flow to separator

2101982, 215247, 215310, B01D 1508

Patent

active

049541498

ABSTRACT:
A septum for an injection port of a gas chromatograph includes interlocked syringe and duckbill seals. The syringe seal prevents fluid leakage during injection by syringe. The duckbill seal prevents fluid leakage after the syringe needle is withdrawn from the septum. A spring clip is used to urge the duckbill closed as the needle is withdrawn. An advantage of this two component septum is that the duckbill slit can be precisely formed in the duckbill seal before the seals are engaged.

REFERENCES:
patent: 811811 (1906-02-01), Allison
patent: 2579724 (1951-12-01), Breakstone
patent: 3623843 (1971-11-01), Brownlee
patent: 3650093 (1972-03-01), Rosenberg
patent: 4066183 (1978-01-01), Armstrong
patent: 4084718 (1978-04-01), Wadsworth
patent: 4123236 (1978-10-01), Hirschfeld et al.
patent: 4134512 (1979-01-01), Nugent
patent: 4193402 (1980-03-01), Rumpler
patent: 4422860 (1983-12-01), Feinstein
patent: 4515752 (1985-05-01), Miramanda
"Hewlett-Packard 1988 Analytical Supplies Catalog and Chromatography Reference Guide", p. 35, the Cool on-Column Inlet.

Affiliated with

Also associated with

Rating

Injection septum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Injection septum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection septum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-439191