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:
Apr. 05, 2011
Filed:
Apr. 08, 2004
Applicants:
Robert Frederick Veasey, Leamington Spa, GB;
Christopher John Jones, Bidford-on-Avon, GB;
Inventors:
Robert Frederick Veasey, Leamington Spa, GB;
Christopher John Jones, Bidford-on-Avon, GB;
Assignee:
DCA Design International Ltd., Warwick, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drive mechanism for use in a drug delivery device comprising an epicyclic gearbox. This drive mechanism includes a housing having a helical thread; a piston rod having a non-circular cross section and an external helical thread; a dose dial sleeve, which is threadedly engaged with the housing and being rotatable with respect to the housing; and a drive sleeve, located between the housing and the piston rod, which is threadedly engaged with the piston rod.