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:
Jan. 01, 2013
Filed:
Mar. 05, 2003
Jeremy Marshall, Jericho, GB;
David Danvers Crossman, Christmas Common, GB;
Jeremy Marshall, Jericho, GB;
David Danvers Crossman, Christmas Common, GB;
Owen Mumford Limited, Jericho, GB;
Abstract
When a trigger of an injection device is released, a main spring () expands, driving a member () forwards. This compresses a weak spring (), but a spring () is stiff enough to remain expanded. A syringe () is thus thrust forwards via a collar (), so that a needle () projects from a barrel (). The spring () continues to expand after the syringe has reached its forward position, with the spring () fully compressed, so that the stem () of the member () acts on a piston () within the syringe (), to expel the dose while the spring () is caused to be compressed. The spring () ensures that the syringe is retained in its forward position during this phase.