The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 1980
Filed:
Jan. 05, 1979
Gert Nielsen, Cratloe, GB;
Gerni A/S, Randers, DK;
Abstract
An apparatus for cleaning objects by means of a jet of liquid and comprising an upright pressure tank with a liquid filling pipe extending downwards therein for filling the tank to a predetermined level. The air cushion above the liquid surface is pressurized through valve means at the top of the tank, and the liquid can be forced through a connecting branch to a hose provided with a spray gun. This connecting branch opens on to the tank at a level above the heating means in the liquid. Pressure relief means are provided so that the upper space of the tank is ventilated to the atmosphere before a closing member at the top of the filling pipe is fully opened, so that hot liquid and possibly the closure member itself cannot be ejected by the pressurized tank. Furthermore a safety device arranged between the pressure tank and the spray gun hose ensures that only a limited amount of liquid will flow through if the liquid pressure in the hose falls owing to rupture of the hose wall.