Wet abrasive blast machine with remote rinse control
OwnerJerry L. Fenley, Jr.inventor
Life of this patent
Estimating the term…
Abstract
An improved wet abrasive blast machine with remote control rinse cycle enables a pilot operating the apparatus to control remote switching between blast and rinse cycles directly, for example from a nozzle of a blast hose or from a panel. A first and second hydraulic circuit and a pneumatic circuit are controllable via communication with a control circuit which is operable remotely to direct a configurable pilot signal between various valve states. In a preferred embodiment, the control circuit is powered pneumatically via a branch circuit fed from the pneumatic circuit. Switching between configurations is effected by directing an air pilot signal between airflows interior to a series of valves. In an alternate embodiment switching airflows between configurations is effected electrically.
Claims15
An improved wet abrasive blast machine with remote control rinse cycle enabling remote control of blasting operations between a rinse cycle and a blast cycle, said improved wet abrasive blast machine comprising:
- a first hydraulic circuit communicating waterflow to a blast pot, a slurry hose, and a blast hose;
- a second hydraulic circuit communicating waterflow to the blast hose bypassing the blast pot and the slurry hose;
- a pneumatic circuit communicating outflow of air through the blast hose;
- and
- a control circuit comprising a pilot signal directable to enable remote switching between the first and second hydraulic circuits and to cease operations of said first and second hydraulic circuits and operation of the pneumatic circuit without deactivating action of at least one pump pressurizing said first and second hydraulic circuits nor action of a compressor feeding air to the pneumatic circuit;
- wherein immediate cycling between a rinse cycle and a blast cycle is controllable remotely, and by a pilot operating said blast hose, to rapidly switch between blasting and rinsing operations when actively engaged in surface cleaning.
Dependencies are inferred from the claim text.