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:
Jun. 02, 1992
Filed:
Dec. 13, 1990
Jan W Gerritsen, Alphen a/d Rijn, NL;
Bredel Exploitatie B.V., Delden, NL;
Abstract
The invention relates to a mortar transport apparatus, consisting essentially of a rotor comprising cylindrical mortar transport chambers, the rotor being arranged between stationary sealing plates and being adapted to be driven by a motor, a feed hopper arranged above the rotor, the feed hopper being adapted to fill the mortar transport chambers via a filling hole provided in the sealing plate situated above the rotor, a blow-off chamber arranged under the lower sealing plate and adapted to have a transport hose connected to it, the blow-off chamber being adapted to be filled via a mortar discharge opening in the lower sealing plate, a duct for supplying air under pressure terminating in a slit-shaped opening in the upper sealing plate above the mortar transport chamber which communicates with the blow-off chamber for driving out the mortar present in the transport chamber, air being supplied to the blow-off chamber at the location opposite the transport hose connection, for pneumatic transport of the mortar through the transport hose. According to the invention the slit-shaped opening (16) is formed by a series of separate spray openings (31) arranged side by side, and arranged for an adjustable water/air mixture to be supplied to them under pressure. The series of spray openings are arranged in a semi-circular pattern (16), the radius of the pattern being about equal to the radius of the transport chamber (10).