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Manufacturers Index - Syncro Corp.
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
2,092,187 Sep. 07, 1937 Device for sharpening blades Joseph C. Schaf Jr. Indianapolis, IN This hone is intended for sharpening safety razor blades. It is of interest because it was manufactured by Syncro Corp. of Oxford, MI, which also made a small scrollsaw.
2,632,121 Mar. 17, 1953 Vibratory electric motor and tool driven thereby Thomas Frazer Carmichael Rochester, MI
2,634,404 Apr. 07, 1953 Phase indicator Thomas Frazer Carmichael Rochester, MI
2,634,559 Apr. 14, 1953 Vibratory electric motor and mechanism driven thereby Thomas Frazer Carmichael Rochester, MI
2,725,692 Dec. 06, 1955 Handle and mounting for vibratory tool Maynard Rudolph Andreae Bloomfield Hills, MI
2,771,102 Nov. 20, 1956 Vibratory electric cutting tool Thomas Frazer Carmichael Plymouth, MI
2,780,248 Feb. 05, 1957 Apparatus for operating vibratory jigsaw Maynard Rudolph Andreae Bloomfield Hills, MI
2,780,249 Feb. 05, 1957 Table jigsaw with tiltable blade Edward G. Sturgeon Berkley, MI
    Table jigsaw with tiltable blade Thomas F. Carmichael Plymouth, MI  
    Table jigsaw with tiltable blade Maynard Rudolph Andreae Bloomfield Hills, MI  
2,786,950 Mar. 26, 1957 Vibratory power tool Edward G. Sturgeon Berkley, MI
    Vibratory power tool Thomas Frazer Carmichael Plymouth, MI  
2,831,352 Apr. 22, 1958 Combustion engine starting assemblies Edward C. Sturgeon Orchard Lake, MI
    Combustion engine starting assemblies Richard Ball Pontiac, MI  
    Combustion engine starting assemblies William T. Elliott Pontiac, MI  
2,836,940 Jun. 03, 1958 Electromagnetic reciprocating tool motor and armature support therefor Thomas Frazer Carmichael Plymouth, MI This invention was subsequently improved in patent 3,271,598.
2,878,404 Mar. 17, 1959 Electromagnetic device Thomas Frazer Carmichael Plymouth, MI
3,271,598 Sep. 06, 1966 Pivot mounting for oscillatory tool Edward G. Sturgeon Orchard Lake, MI This invention is an improvement to patent 2,836,940.
4,829,970 May. 16, 1989 Ignition system Thomas Frazer Carmichael Drayton Plains, MI "A means for readily changing the ignition system of an existing internal combustion engine to a solid state capacitive discharge ignition system which comprises an auxiliary coil, a primary ignition coil and a secondary ignition coil wound on a single leg of a stator. The stator is designed with one or more additional legs which complete a conductive path for the time varying flux, and adapt the stator for mounting on the existing structure of the engine. In addition, two legs of the stator which define a flux path may each be divided into two segments at their outer extremity, one of each pair being slightly longer than the other so as to create two different size air gaps for each leg. A washer-like element may be used in cooperation with the above structure to change the position of the rotor relative to the crankshaft so as to alter the timing of the ignition system."
5,361,024 Nov. 01, 1994 Remote, electrical steering system with fault protection Charles W. Harrington Jackson, TN This patent is of interest because it is the last patent we have found that was assigned to Syncro Corp. In the 1950s and '60s Syncro made a miniature scrollsaw.
    Remote, electrical steering system with fault protection James W. McClellan Jackson, TN  
    Remote, electrical steering system with fault protection Gary E. Wisner Boaz, AL