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:
Oct. 13, 1992
Filed:
Jun. 20, 1991
Heinrich Guttinger, Wettingen, CH;
Aginfor AG fur industrielle Forschung, Wettingen, CH;
Abstract
A displacement machine for compressible media includes a stationary housing, and a plurality of disks mounted for eccentric movement within the housing. Each of the disks has two symmetrically disposed spiral displacement bodies that are offset from one another by substantially 180.degree. mounted on at least one side thereof so that the spiral displacement bodies move in an orbital fashion within the housing during operation. The disks are positioned with respect to one another such that each of the spiral displacement bodies intermeshes with another spiral distribution body to define pairs of cooperating spiral displacement bodies. The spiral displacement bodies have a curvature that is dimensioned such that opposed surfaces of cooperating spiral displacement bodies substantially contact one another at at least one sealing line that progresses continuously during operation. The cooperating spiral displacement bodies of each pair of cooperating spiral displacement bodies have a different wrap angle so that the spiral displacement body having the greater wrap angle has spiral portions lying radially inwardly and radially outwardly of the cooperating spiral displacement body.