The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2010
Filed:
Aug. 15, 2000
Applicants:
Thomas Richard Kerby Edwards, Hauxton, GB;
John Cassells, Melbourn, GB;
Nicholas Ian Mounteney, Hunting, GB;
Gerald Avison, Cambridge, GB;
Inventors:
Thomas Richard Kerby Edwards, Hauxton, GB;
John Cassells, Melbourn, GB;
Nicholas Ian Mounteney, Hunting, GB;
Gerald Avison, Cambridge, GB;
Assignee:
TTP Labtech Limited, Royston, Hertfordshire, GB;
Primary Examiner:
Int. Cl.
CPC ...
B01L 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A positive displacement type substance sampling and dispensing device comprises a central plunger formed from a first material. A plunger housing is formed from a second material having a melting point lower than the first material, the housing being formed by molding and setting the second material on to the surface of the plunger so that the plunger can slide in the housing to draw a substance into it.