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Manufacturers Index - Grob, Inc.
Patents
This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
2,050,490 Aug. 11, 1936 Open end band saw Benjamin Grob West Allis, WI
2,090,195 Aug. 17, 1937 Open end band saw machine Benjamin Grob West Allis, WI "Grob Brothers" is described as "a partnership composed of Benjamin Grob and Theodore Grob."
"This invention relates to band sawing machines, and more particularly to an improved machine adapted to be used for sawing out internal portions of work pieces such as die blocks, stripper plates, etc., where the saw in order to be operative must be threaded through the work piece."
2,253,515 Aug. 26, 1941 Band saw Benjamin Grob Gafton, WI Improvements to patents 2,050,490 and 2,090,195.
    Band saw Theodore Grob Grafton, WI  
2,364,969 Dec. 12, 1944 Work feed Benjamin Grob Grafton, WI A division of the application that became patent 2,253,515.
    Work feed Theodore Grob Grafton, WI  
2,616,160 Nov. 04, 1952 Work feed Herman R. Noll Grafton, WI Improvements to patent 2,364,969 to simplify making cuts longer than the travel distance of the weight powering the feed mechanism.
2,715,846 Aug. 23, 1955 Method of groove forming Benjamin Grob Grafton, WI "A general aim of the present invention is to provide a novel method of metal rolling particularly adapted for the rapid and economical production of gears and other similar repetitively grooved essentially cylindrical shapes..."
    Method of groove forming Ernst Grob , Switzerland