Interlocking multipurpose airtool
AssigneePenumatic Systems International Pty Ltd.
InventorDavid Wayne Casella
Life of this patent
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Abstract
A multipurpose air tool (1) having a handle (2) to which a head (3) can be removably attached is disclosed. The head (3) has attached thereto various such tools as a face plate (4) and replaceable nozzles (5). The head (3) is interlocked to the handle (2) by a spigot (19) and bayonet connection (21, 23, 34). A safety interlock (16) prevents operation of the trigger (15) and valve (12) unless the head (3) is correctly positioned on the handle.
Claims9
An interlocking multipurpose air tool comprising a multi function handle, a connection in the handle for the connection to a supply of compressed air, a trigger actuating a valve in the handle for controlling the flow of compressed air, characterised in that said air tool includes a head, interlocking means removably connecting said head to the said handle, by relative rotation of the head to the handle, an attachment connected to said head, said attachment connecting said air supply to a point of use, and a safety lock between said head and said handle to prevent the operation of the trigger until the head is correctly positioned on said handle, said safety lock engaging a position of the head when not correctly positioned by the relative rotation of the head whereby the said head can carry one of a plurality of attachments depending on the use to which the airtool is put.
Dependencies are inferred from the claim text.