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:
Nov. 12, 1985
Filed:
Nov. 08, 1984
Wellcome New Zealand Limited, Auckland, NZ;
Abstract
The subject matter relates to an applicator for applying matter to be applied, such as vaccine, to animals. The applicator includes an applicator head which incorporates a chamber and needle. The needle is at least partially surrounded by a generally elongate proboscis or cover which is capable of axial movement over and relative to the needle. A reservoir for matter to be applied or vaccine, is provided and is attached to the applicator head. Valving connects the chamber with the needle and also connects the reservoir with the chamber. Predetermined axial movement of the proboscis or cover relative to the needle opens the valving between the needle and chamber and allows matter within the chamber, such as vaccine, to be passed from the chamber through the needle. The chamber is provided with a movable wall and actuating means connected to a trigger. On the trigger being actuated, the spring biased actuating means causes the movable wall of the chamber to move outwardly thereof, opening valving between the reservoir and chamber and drawing an amount of matter to be applied or vaccine into the chamber. A measure or shot of matter to be applied is then held in the chamber until the valve between the chamber and needle is opened on axial movement of the proboscis relative to the needle.