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. 19, 1986
Filed:
Jun. 12, 1985
Francesco Sartori, 44 - 40122 Bologna, IT;
Other;
Abstract
The method disclosed envisages embodiment of a solid back carrying tufts of bristles or fibers etc which is provided, at least along the stretches near its outermost ends, with a series of sloping lands having an angle of inclination that is progressively less accentuated the nearer a single land is located to the middle section of the surface on which it is formed. Each land is provided with a corresponding hole whose axis is disposed normal or substantially normal to the land, whilst the remaining part of the surface is provided with uniformly-distributed holes the axes of which are either normal or marginally inclined relative to the surface itself. At least one tuft is set into each hole in such a way that the projecting tips of the bristles or fibers lie within a common plane.