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:
Aug. 09, 1994
Filed:
Dec. 16, 1992
Klaus Gerhardt, Rheurdt, DE;
G. Siempelkamp GmbH & Co., Krefeld, DE;
Abstract
A belt press has a frame having horizontally extending and vertically spaced upper and lower plates defining a horizontally extending gap, respective upper and lower sets of drums rotatable on the frame, respective upper and lower endless belts spanned over the respective upper and lower sets of drums and each having a working stretch lying between the plates, and respective upper and lower sets of tubular rollers engaged between the working stretches and the respective plates. Respective upper and lower sets of rods traverse the respective rollers and are connected together as upper and lower endless chains. A drive connected to the drums advances the belts to move the working stretches horizontally in a transport direction to displace a workpiece in the direction through the gap and the plates are urged together with a pressure of between 300N/cm.sup.2 and 600N/cm.sup.2. Each tubular roller has a wall thickness greater than 2 mm, is formed of a material such that it is not substantially deformed when compressed diametrally between the respective plate and the respective working stretch, has a mass which is smaller by a factor of between 0.30 and 0.50 than a solid rod of identical material and outside dimensions, and has a geometrical moment of inertia that is smaller by a factor of between 0.50 and 0.65 than a solid rod of identical material and outside dimensions.