Title: System for effecting access into sealed enclosures

Abstract: An improved system for effecting working access into sealed enclosures, such as glove boxes. The sytem includes an elongated arm-length sleeve, one end of which is sealed in a port fitting in the wall of the chamber and the other end of which is fitted with a replaceable glove. The elongated sleeve is preferably tapered from shoulder to wrist and of corrugated or convoluted structure for easy extension and retraction. The porthole fitting is preferably elliptical to maximize working access to the chamber. The inner end of the sleeve is fitted with a wrist bushing in which a glove supported on a deformable ring may be fit in sealed relation. The glove may be replaced with a further glove supported on a separate deformable ring without disruption of the sealed relationship.

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Other info:

Inventors: Eisert, Gerald A. (Hastings, MN, US)

Application Number: 854884
Filing Date: 1977-11-25
Publication_date: 1979-02-27
Assignee: Central Research Laboratories, Inc. (Red Wing, MN)
Primary Class(es): 312/1 49/475.1, 52/204.593, 976/DIG362
Other Classes:
US Patent Ref:

2600240	Jun, 1952	Grieb	128/1.
2695605	Nov, 1954	Gibbon	128/1.
3084684	Apr, 1963	Saunders	128/1.
3099015	Jul, 1963	Renehan	312/1.
3140495	Jul, 1964	Gottwik	312/1.
3267614	Aug, 1966	Cazalis et al.	49/488.
4010588	Mar, 1977	Eisert	52/398.
4069913	Jan, 1978	Harrigan	312/1.

Other Refs:
Primary Examiner: Sakran, Victor N.
Assistant Examiner:
Attorney: Burd, Braddock & Bartz