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Aro Patents
Chateau du Loir, FR
No. of patents:

Patent Number Title Of Patent Date Issued
6474215 Actuator with approach pre-stroke and working stroke for operating a tool November 5, 2002
The invention concerns an actuator (21) comprising a pre-stroke rod (29) which can be fixed to the tool body, for example soldering pliers. Thus by pressurising the pre-stroke chamber (27) the working rod (34) for closing the pliers can be brought into an intermediate small opening posit
5387774 Spot resistance-welding electrode; contact tip for such an electrode; machine for exchanging the February 7, 1995
This welding electrode is one wherein the welding cap 3 of the electrode body 1 carries a contact tip 4 which is securely fastened to it by brazing. Thus, the replacement of this contact tip can be carried out very easily by stopping the circulation of the cooling water in the electrodes
4543552 Transformer, more especially a voltage dropping transformer for an electric welding machine September 24, 1985
A voltage dropping transformer for an electric welding machine, of the type in which the secondary circuit is formed by a wound strip, is provided wherein one or more cooling turns are incorporated or inserted in the windings of the primary and/or secondary circuits, separating them into

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