Martin A Lee

US Patent:

D3657000, Jan 2, 1996

Filed:

Feb 14, 1994

Appl. No.:

D/018668

Inventors:

Martin Lee - Yonkers NY

Assignee:

American Track & Hardware Co., Inc. - Monsey NY

US Classification:

D 6403

US Patent:

39908496, Nov 9, 1976

Filed:

Feb 7, 1975

Appl. No.:

5/548177

Inventors:

Martin J. Lee - Westwood NJ
Bruce J. Oberhardt - Bronx NY

Assignee:

Technicon Instruments Corporation - Tarrytown NY

International Classification:

B01D 1500
G01N 110
G01N 3316

US Classification:

23230B

Abstract:

A method for separating a blood cell portion and a liquid portion of a whole blood sample comprising the steps of contacting over a period of time a substance in the form of a nonparticulate gel mass with the sample, so as to diffuse the liquid portion into the mass, the mass having an effective pore size to exclude the blood cells, and collecting the blood cells remaining after such contact of the sample with the mass. The method may include impregnating the substance of the mass with a selective reagent to react with the liquid portion diffused therein, and furthr include analyzing a reaction product produced within the mass.

US Patent:

42603927, Apr 7, 1981

Filed:

Jul 7, 1978

Appl. No.:

5/922611

Inventors:

Martin J. Lee - Leonia NJ

Assignee:

Technicon Instruments Corporation - Tarrytown NY

International Classification:

G01N 3300
G01N 3348
C12Q 100

US Classification:

23230R

Abstract:

There is disclosed a method and apparatus for obtaining a precise aliquot of a sample by diffusing the sample into a gel mass for a controlled period of time. The sample may comprise a liquid containing an unknown quantity of a diffusible, to-be-assayed, component or components. The method may further include reacting a component of the sample with an assay-reagent present in excess quantity above that needed for reaction, the reagent being disposed in the gel mass. The sample is placed in contact with a preselected surface area of the gel mass. The component of the sample is allowed to diffuse into the gel mass for a controlled period of time. Thereafter, the remainder of the sample containing the component is removed, and further diffusion of the component through the gel mass may proceed for a controlled period of time. This provides both a further dilution of the component and permits continuous reaction of the component with a reagent distributed throughout the gel mass. It is possible to measure the degree of reaction between the diffused component and the reagent in the gel mass.

US Patent:

42502578, Feb 10, 1981

Filed:

Aug 24, 1978

Appl. No.:

5/936436

Inventors:

Martin J. Lee - Leonia NJ
Michael J. Malin - Park Ridge NJ

Assignee:

Technicon Instruments Corporation - Tarrytown NY

International Classification:

C12M 134
G01N 2127
G01N 3106
G01N 3352

US Classification:

435 4

Abstract:

Method and apparatus for analyzing whole blood samples which feature impregnating a gel medium used for the analysis of the whole blood sample with an inert substance. When the whole blood sample is placed on the gel medium, the inert substance diffuses from the gel as the plasma solutes of the blood diffuse into the gel. The amount of the inert substance diffusing from the gel medium is inversely proportional to the hematocrit of the blood sample. In one embodiment, plasma solutes are caused to react with one or more reagents in the gel medium to assay various specific analytes. Also, the hematocrit, indicated by the diffusion rate of the inert substance from the gel, is determined and used to correct such assay.

US Patent:

42884250, Sep 8, 1981

Filed:

Jan 31, 1979

Appl. No.:

6/008203

Inventors:

Martin J. Lee - Leonia NJ
Leonard Ornstein - White Plains NY

Assignee:

Technicon Instruments Corporation - Tarrytown NY

International Classification:

G01N 3348

US Classification:

424 1

Abstract:

Methods and apparatuses are featured for preconcentrating immunological reactants prior to their contact and reaction, to greatly enhance the rate of reaction and the sensitivity. The preconcentration is accomplished within the reaction medium and is followed automatically by the separation of unreacted and reacted reactants resulting in a simplified and compact apparatus.

US Patent:

40097978, Mar 1, 1977

Filed:

Jul 22, 1976

Appl. No.:

5/707602

Inventors:

Martin Lee - Yonkers NY

Assignee:

American Tack & Hardware Co., Inc. - Monsey NY

International Classification:

H02G 314

US Classification:

220242

Abstract:

A wall plate, for electrical switches, electrical outlets and the like, includes a frame and an insert received by the frame. The frame is held against the wall by the insert, which is secured to the electrical switch or electrical outlet by at least one fastening element which fits through an aperture defined in the insert. The insert includes at least one flange which serves as an abutment or stop to prevent damage to the insert as the fastening element is tightened and the insert is pulled toward the switch or outlet.