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:
Sep. 05, 1989
Filed:
Jun. 09, 1988
William B Bayless, Huntington Beach, CA (US);
Other;
Abstract
A hypodermic syringe and needle combination with a releasable, automatic needle enclosing sheath. A syringe barrel having an open and a closed end includes first and second longitudinally extending guide channels for guiding push rods secured to the thumb platform of a plunger rod. Ball-end engaging sockets are located at the ends of the guide channels for capturing ball-ends secured to the needle sheath which is slidably supported and displaceable between (1) a first position where the needle sheath is locked by engagement of the ball-ends in the sockets and which exposes the needle, and (2) a second position where the needle sheath encases the needle. The needle sheath is spring biased so that it travels from the first position to the second position when the ball-ends are released from the sockets by pressure applied on the thumb platform which causes the pushrods to push the ball-ends out of the sockets.