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:
Apr. 05, 1994
Filed:
May. 13, 1992
Applicant:
Inventors:
Elmar Maier, Felkirch-Tisis, AT;
Eckart Drossler, Thuringen, AT;
Assignee:
Hilti Aktiengesellschaft, Furstentum, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34 5 / ; 34 5 / ; 34 51 ; 118303 ; 118D / ; 432 58 ;
Abstract
Transport apparatus for small sized hardware items includes a fluidized bed with a sloping gas permeable base (6) at the inlet end of the bed. Gas feed chambers (6a, 6b, 6c, 6d) are located on the lowerside of the base (6) and are sealed from one another in a gas tight manner. Powder columns (2a, 2b, 2c, 2d) of different heights extend upwardly above the base (6). Gas at different pressures is supplied through the gas feed chambers (6a, 6b, 6c, 6d) into the powder columns forming a uniform fluidized bed (2). The base slopes downwardly and has step-like transitions adjacent intersections of the chambers.