Albert J Moses

US Patent:

20060065183, Mar 30, 2006

Filed:

Sep 24, 2004

Appl. No.:

10/949485

Inventors:

Michael Drummond - Malvern PA, US
Albert Moses - West Chester PA, US

Assignee:

Drummond Scientific Company - Broomall PA

International Classification:

G01K 1/02

US Classification:

116217000

Abstract:

An apparatus that indicates whether an object has been exposed to a predetermined critical temperature T. The apparatus housing has a reservoir portion and a capillary tube portion in fluid connection with the reservoir portion. A first fluid is contained within the reservoir portion. A second fluid is contained within the capillary portion. A barrier is located intermediate the first fluid and second fluid. The barrier prevents the first and second fluids from intermixing until the apparatus is exposed to the critical temperature, and then allows at least a portion of the second fluid to mix with the first fluid when the apparatus is exposed to the critical temperature. An observable characteristic of one of the fluids irreversibly changes when the apparatus is exposed to the critical temperature. The housing completely encapsulates the fluids and barrier within the housing and prevents evaporation of the fluids and barrier from the housing.

US Patent:

20070086924, Apr 19, 2007

Filed:

Oct 18, 2005

Appl. No.:

11/252833

Inventors:

Albert Moses - West Chester PA, US

Assignee:

Drummond Scientific Company - Broomall PA

International Classification:

B01L 3/02

US Classification:

422100000

Abstract:

A disposable, contamination-indicating pipette for metering liquids containing a specified agent. The pipette has a main body portion having a volume V and a diameter D, an open-ended upper connection portion, and an open-ended lower tip portion. An indicator in the connection portion provides an observable indication that liquid has entered the connection portion.

US Patent:

20110011330, Jan 20, 2011

Filed:

Jul 20, 2009

Appl. No.:

12/506248

Inventors:

Albert J. Moses - West Chester PA, US
Michael E. Drummond - Broomall PA, US

Assignee:

Drummond Scientific Company - Broomall PA

International Classification:

G01K 1/02

US Classification:

116216

Abstract:

An inexpensive, disposable apparatus that visually indicates whether an object has been exposed to either one or both of two predetermined critical temperatures such as a critical high T or a critical low T temperature. The apparatus includes a housing having a reservoir portion, and a capillary tube portion with a first, proximal end in fluid connection with the reservoir portion and an open, second, distal end. A first fluid is contained within the reservoir portion and a portion of the proximal capillary tube portion. A second fluid is contained within the capillary portion intermediate the first fluid and the distal end. A barrier is located intermediate the first fluid and the second fluid. The barrier prevents the first and second fluids from intermixing until the apparatus is exposed to T and then allows at least a portion of the second fluid to mix with the first fluid when the apparatus is exposed to T and irreversibly changes an observable characteristic of the second fluid. An indicator material is fixed proximate to and in fluid communication with the distal end of the capillary tube portion. The indicator material has an observable characteristic that irreversibly changes at T when contacted with the second fluid. An outer sheath encapsulates the indicator and the distal open end of the capillary tube portion to prevent the fluids and barrier from evaporating from the housing.