Abrading – Precision device or process - or with condition responsive... – With feeding of tool or work holder
Reexamination Certificate
2006-10-24
2006-10-24
Ackun, Jr., Jacob K. (Department: 3723)
Abrading
Precision device or process - or with condition responsive...
With feeding of tool or work holder
C451S005000, C451S049000, C451S056000, C451S212000, C451S214000
Reexamination Certificate
active
07125316
ABSTRACT:
The invention relates to a method and to a device for producing molds for toothed belts. A grinding wheel (9) that has a profiled periphery is used instead of a milling cutter to provide the circumference of a roller-shaped blank (4) with the matrix of a desired tooth contour of a toothed belt. The circumferential profile of the grinding wheel (9) is trimmed using a CNC-controlled diamond trimming pin (11) or alternatively with a profiling diamond (19).
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Koenig, W., & Meijboom, H.M.,: Surfacing profile grinding disks for grinding the flanks of teeth, in: VDI-Z 121, 1979, No. 21, pp. 1087 to 1092.
Brochure “MB 1”; ELB, Blohm and Maegerle, before 1994, the Opposer refers to the disclosure on p. 7 of this brochure, in which a profiled grinding machine is shown, which is used for processing a pressure roller for producing corrugated cardboard.
Brochure “MB 2”; The brochure of Fa. Blohm, which carries the imprint “Aug. 1998” on the last page and, therefore no doubt originates from 1998, shows profile grinding of steering pinions on the last page carrying the heading “Flexibility with new spindle drive”.
Brochure “MB 3”; the brochure Fa. “Maegerle” is not suitable as state of the art. The Opposer in the litigation assumes quite generally, that because of the complexity and diversity of the profile grinding machines offered in the brochure, it may be taken for granted that this company has offered corresponding profile machines already before the priority date of the patent application in question here.
Brochure “MB 4”; the brochure carrying the imprint Jun. 1997, on the last page, the Opposer refers to the procedure claimed in the dependent claims 2 to 4.
Concise Explanation of Relevancy of Letter of Blohm dated Feb. 22, 1993 and attachments Profile grinding of molds for the production of V-belts and toothed belts.
concise Explanation of Relevancy of PRESTA document dated Nov. 7, 1994 and its attachment.
Ackun Jr. Jacob K.
Jordan and Hamburg LLP
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