Surgery – Instruments – Means for applying animal identification device
Patent
1994-03-31
1995-10-31
Pellegrino, Stephen C.
Surgery
Instruments
Means for applying animal identification device
A01K 1100
Patent
active
054625548
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an improved ear tag applicator.
More particularly, the present invention relates to an improved applicator for applying ear tags to animals whereby the ear tag engagement means is locked until the tag is inserted and whereupon it pivots away from the applicator upon insertion of the tag.
To the present time a wide range of ear tag applicators have been known. These generally consist of a pliers type of applicator, often of the trocar type, which usually involves a hand held appliance whereby in use a pin or blade pierces the animal's ear and then draws through the head of the ear tag. In such applicators the manner in which the blade or pin is positioned and directed is important. Prior art applicators have used a variety of means to achieve this including a relatively complex slidingly movable element within a housing as found in New Zealand Patent Specification No. 205008. Other applicators have utilised the use of mechanical retention means to keep the blade or pin in position prior to, during or after insertion of the ear tag.
The aforesaid applicators have tended to be complex and/or inefficient. It is an object of the present invention to address these difficulties.
According to one broad aspect of the invention there is provided an applicator for an animal ear tag including at least two pivotally connected handle members extending into or being attached to first and second jaws, and a driving means comprising a body portion and elongate tag engagement means characterised in that the driving means is pivotally connected adjacent one end of the first jaw member to enable the driving means to pivot about and relative to its pivotal attachment to the first jaw member.
According to another broad aspect of the invention there is provided an applicator tool for applying an ear tag to an animal comprising actuating means connected to upper and lower jaw means the said jaw means being movable towards and away from each other, driving means comprising a body portion and elongate tag engagement means wherein the tag engagement means is pivotable and the load on the tag engagement means is located below the point of pivot thereby restraining said tag engagement means in a first position and whereby said tag engagement means is pivotable away from the applicator to a second position once the ear tag has been applied to the animal.
In a preferred form of the invention the tag engagement means comprises a pin which in its first position is substantially diagonal to the upper and lower jaw means and is pivotable so as to lie in substantially the same plane as the upper jaw means upon insertion of an ear tag.
The driving means preferably consists of a body portion movable about a pivot wherein the said movement is determined by restraining means located around the said body portion and wherein biasing means assists to restrain the said driving means in a first position.
Further objects of the invention will become apparent from the following description which is given by way of example only of a preferred embodiment of the invention. Reference is made to the accompanying drawings wherein:
FIG. 1: is a side elevational view of a preferred form of the applicator tool according to the invention showing the driving means in a "cocked" position and showing part of the upper jaw means partially cut away;
FIG. 2: is again a partially cut away view of the applicator tool of FIG. 1 showing the driving means in a "spent" position;
FIG. 3: is a diagrammatic side elevational view of an applicator tool of FIG. 1 to illustrate the insertion of a one piece ear tag--prior to insertion of the ear tag;
FIG. 4: shows the insertion of the ear tag using the applicator shown in FIG. 3 upon insertion of the ear tag through an animal's ear;
FIG. 5: is an ear tag applicator as shown in FIG. 1 illustrated with a two piece ear tag;
FIG. 6: shows the applicator and ear tag of FIG. 5 upon insertion of the ear tag through an animal's ear.
The applicator of the present invention may be constructed according to the
REFERENCES:
patent: 4368735 (1983-01-01), Filmer
patent: 4402320 (1983-09-01), Filmer
patent: 4552147 (1985-11-01), Gardner
patent: 4819639 (1989-04-01), Gardner
Dawson Glenn
Pellegrino Stephen C.
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