Chain saw guide bar with liquid spray device
AssigneeSandvik AB
InventorArvo Leini
Life of this patent
Estimating the term…
Abstract
Chain saw guide bar and method of using a guide bar for spraying liquid on a sawn surface through a plurality of orifices formed in a guide bar side plate. The liquid is introduced into an inlet portion of a passage formed in a center plate of the guide bar and is conducted forwardly to the orifices. The liquid is sprayed from the orifices at equal pressures, and in spray directions having a component oriented parallel to a centerline of the guide bar. Thus, by adjusting the velocity of the sprayed liquid, the length dimension of the area sprayed can be adjusted.
Claims9
A guide bar adapted for use in a vehicle-borne chain saw for spraying liquid onto a sawn surface, the guide bar having a longitudinal centerline extending between front and rear ends of the guide bar, the guide bar comprising two side plates and a center plate disposed therebetween, the center plate including a cut-out formed in at least one side thereof, the cut-out defining a passage having inlet and outlet portions, the inlet portion disposed adjacent the rear end of the guide bar for receiving a liquid to be sprayed, at least one of the side plates including spray orifices communicating with the outlet portion of the passage for spraying liquid received therefrom, at least some of the orifices arranged such that a spray direction thereof has a component extending parallel to the centerline of the guide bar.
A method of spraying liquid from a vehicle-borne chain saw onto a sawn surface comprising the steps of:
- introducing the liquid under pressure into an inlet portion of a passage formed in a guide bar of the chain saw, conducting the liquid forwardly to an outlet portion of the passage, spraying the liquid outwardly through orifices formed in at least one side of the guide bar such that the spray direction of the liquid from at least some of the orifices has a component extending substantially parallel to a centerline of the guide bar.
Dependencies are inferred from the claim text.