Michael H O'Connell

US Patent:

52484793, Sep 28, 1993

Filed:

Dec 22, 1992

Appl. No.:

7/995303

Inventors:

Robert G. Parsons - Green Oaks IL
Bob O. Basore - Evanston IL
Michael B. O'Connell - Waukegan IL
Kevin J. Forney - Chicago IL
Paul J. Ropella - Racine WI
Andrew J. Muetterties - Mundelein IL

Assignee:

Abbott Laboratories - Abbott Park IL

International Classification:

G01N 2100

US Classification:

422 58

Abstract:

A device for performing agglutination immunoassay reactions and the like is disclosed. The device includes a first hydrophilic layer, a second liquid-occlusive layer parallel to and overlying the first layer, and a third layer parallel to and overlying the second layer. The third layer has a transparent opening for observing particles. The second layer is interposed between and in adherent relationship to the first and third layers. The second layer has at least one slot defining a channel for directing liquid conducted by capillary action through the chamber defined in conjunction with the first and third layers. This chamber has a proximate zone and a distal zone. The geometry of the chamber is modified to provide preferably outwardly diverging walls and provide a flowpath having different rates of flow per unit area along the paths. This arrangement of different paths in the chamber allows agglutination reactions in the chamber to result in the formation of a non-random pattern of aggregated particles in the distal zone of the chamber. Such a non-random pattern is more readily observable than a random pattern of aggregated particles.

US Patent:

50839373, Jan 28, 1992

Filed:

Jun 3, 1991

Appl. No.:

7/709670

Inventors:

Steven B. Bogiel - Schaumburg IL
Mark M. Data - Bolingbrook IL
Robert DeRoss - Naperville IL
David M. Skowronski - Naperville IL
Michael J. O'Connell - Naperville IL

Assignee:

Molex Incorporated - Lisle IL

International Classification:

H01K 424

US Classification:

439441

Abstract:

An electrical connector is provided of the wire-trap type. The connector includes a housing defining an interior cavity with a passage through the cavity for receiving an in-line conductor. A pair of openings are provided in the housing for receiving the stripped ends of a pair of electrical wires. A generally U-shaped terminal is disposed in the cavity of the housing and includes a pair of leg portions joined by a bight portion. The leg portions have wire-trapping distal ends in registry with the openings for deflectingly engaging and trapping the stripped ends of the electrical wires inserted into the openings. The bight portion has a terminating section in registry with the passage for termination to the in-line conductor.