05997500 is referenced by 9 patents and cites 11 patents.

A pneumatically operated veterinary medicinal pellet implanter utilizes pressurized air to drive an impeller for dispensing medicinal pellets through a needle on an end of the implanter and into a cavity created by the needle under the skin of an animal to be treated. The pressurized air source may also be utilized to retract the impeller after dispensing of the pellets. The impeller is part of a piston slidingly secured within a pneumatic cylinder. Pressurized air is selectively and alternatingly supplied to the front and rear and rear of the cylinder for advancing the impeller between retracted and extended positions respectively. The pressure of the air supplied to the rear of the cylinder for driving the impeller is reduced relative to the pressure of the air supplied to the front of the cylinder for retracting the impeller.

Title
Pneumatically operated veterinary pellet implanter
Application Number
9/62826
Publication Number
5997500
Application Date
April 20, 1998
Publication Date
December 7, 1999
Inventor
C Louis Grimm deceased
late of Shawnee
KS, US
Michael J Zalta
Richardson
TX, US
Michael L Grimm
Kansas City
KS, US
David L Cook
Harrisonville
MO, US
Agent
Litman Kraai & Brown L L C
Agent
John C McMahon
Assignee
Ivy Animal Health
KS, US
IPC
A61M 31/00
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