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. 08, 1990
Filed:
Feb. 17, 1989
Michael W Morgan, Greenwood, IN (US);
Other;
Abstract
A syringe assembly comprises an elongated tubular syringe barrel having a tubular needled mounted to one end and a plunger slidably disposed within the barrel. A hollow outer casing is mounted to and surrounds the syringe barrel with the barrel and the casing defining an interior space therebetween. A tubular sleeve is telescopically disposed within the space between the casing and barrel and is movable between an extended position surrounding and shielding the syringe needle and a retracted position in which the needle is exposed for use. A longitudinal slot is formed in the casing and a projection mounted to the sleeve is slidably disposed within the slot to function as a lever for moving the sleeve between its extended and retracted positions. Notches are formed on either end of the slot such that the projection can be moved laterally into a notch to lock the sleeve in either its extended or its retracted position.