Ex-Cell-O Machine Tools, Inc. - Assigned Patents

Manufacturers Index - Ex-Cell-O Machine Tools, Inc.

Ex-Cell-O Machine Tools, Inc.
Sterling Heights, MI, U.S.A.
Company Website: https://www.kenrie.com
Manufacturer Class: Wood Working Machinery & Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

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Patent Number	Date	Title	Name	City	Description
1,708,491	Apr. 09, 1929	Method of finishing ball bearings	Carroll R. Alden	Detroit, MI	Ex-Cell-O made high-speed grinding spindles that required great precision in manufacture. The innovation in this patent involves "running in" the bearings during the manufacturing process as a way of ensuring the balls are the same size and the running-in wear properly accommodated. A watt-meter is used to monitor power draw during the running-in process and the end-pressure is increased over time to keep the wattage roughly constant. The end-pressure mechanism eventually bottoms out, indicating that the bearings are nearly sufficiently worn in. After that, the running-in process is complete when the watt reading drops to a set value. During the running-in process the bearings are filled with a mixture of 20 oz. of jeweler's rouge (finely divided iron oxide) per quart of mineral oil. This patent was further improved in patent 2,460,472.
1,864,707	Jun. 28, 1932	Slip bushing	Carroll R. Alden	Detroit, MI	Ex-Cell-O claimed to have created the concept of the standardized drill bushing; they dominated that market from the mid-1920s and for some years afterwards. This patent covers a bushing design "without recesses wherein dirt and chips may gather". In addition, the bushing may be turned in either direction to lock the two pieces together.
2,000,553	May. 07, 1935	Machine tool	Carroll R. Alden	Detroit, MI
2,012,677	Aug. 27, 1935	Spindle structure	Carroll R. Alden	Detroit, MI	The innovation in this spindle is to vary the number and size of the bearing balls, which was found to nearly eliminate helical tracks caused by vibrations in the spindle. The ball bearing assemblies are used in pairs. The illustration shows a spindle with three pairs of bearings: the tool-end bearing has 22 balls, and the immediately adjacent bearing has 21; the intermediate pair of bearings has 22 and 19 balls; the third pair of bearings have 14 balls in each. In addition, the spindle diameter is varied between each pair of bearings to further improve surface finish.
2,111,299	Mar. 15, 1938	Magnetic Sine Table	Omer E. Robbins	Detroit, Wayne County, MI	This Magnetic Sine Table was also patented in France, #828,200. The French patent was on a Sine-Magnetic Chuck manufactured by the Ex-Cell-O Corp.
828,200	May. 11, 1938	Magnetic Sine Table	Omer E. Robbins	Detroit, Wayne County, MI	This patent was on a Sine-Magnetic Chuck manufactured by the Ex-Cell-O Corp.
2,179,573	Nov. 14, 1939	Retractable Tool and Holder Therefor	Ray B. Criddle	Detroit, Wayne County, MI
2,351,773	Jun. 20, 1944	Device for Determining Angles	Hans J. Lovenston	Detroit, Wayne County, MI	This patent was on a Sine-Magnetic Chuck manufactured by the Ex-Cell-O Corp.
2,375,255	May. 08, 1945	Hydraulic Transmission for Machine Tools	Ira J. Snader	Detroit, Wayne County, MI
		Hydraulic Transmission for Machine Tools	Max A. Mathys	Detroit, Wayne County, MI
2,460,472	Feb. 01, 1949	Process for improving the surface of form ground races	Harold N. Seyferth	East Detroit, MI	The patent relates to reducing chatter when form-grinding the races, a step that precedes the Alden finishing method of patent 1,708,491.
2,937,732	May. 24, 1960	Linear Indexing Mechanism	Samuel G. Brady	Bloomfield Township, Oakland County, MI
2,960,804	Nov. 22, 1960	Machine for Grinding the Back-Off from the Cutting Edges of Tools of the Broach Type	Samuel G. Brady	Birmingham, Oakland County,, MI
3,024,577	Mar. 13, 1962	Helical Gear or Spline Grinder	Samuel G. Brady	Birmingham, Oakland County,, MI
		Helical Gear or Spline Grinder	Wilhelm Dralle	Detroit, Wayne County, MI
3,038,280	Jun. 12, 1962	Internal Stock Divider	Wilhelm Dralle	Detroit, Wayne County, MI
3,061,935	Nov. 06, 1962	Instrument for Determining Angles	James T. De Witt	Detroit, Wayne County, MI	This patent was on a Sine-Magnetic Chuck manufactured by the Ex-Cell-O Corp.
3,169,416	Feb. 16, 1965	Boring head and method of using same	Friedrich H. Burkhardt	Baden-WÃ¼rttemberg,, Germany
		Boring head and method of using same	Ernest Carlson	Birmingham, Oakland County, MI
3,194,751	Jul. 13, 1965	Electrolytic Grinder Wheel	Samuel G. Brady	Birmingham, Oakland County, MI
3,373,637	Mar. 19, 1968	Multiple purpose portable rotary drive unit	Howard N. Behnke	Monterey Park, CA	This invention is a "portable power rotary drive assembly capable of driving die heads and adapters for pipe threading". The patent number has been seen in a 1988 Greenlee catalog, for their Number 440 Porta-Thred Power Drive/Portable Threader.
3,516,149	Jun. 23, 1970	Machining Apparatus with Automatic Tool Changing Means	George Mickas	Gross Point Woods, Wayne County , MI
3,824,834	Jul. 23, 1974	Cable bender	Henry B. Durham	Birmingham, AL	This patent number has been seen in a 1988 Greenlee catalog, for their No. 796 Ratchet Cable Bender.
3,924,438	Dec. 09, 1975	Hydraulic cable bender	Wayne Linquist	Rockford, IL	This patent number has been seen in a 1988 Greenlee catalog, for their No. 800 Hydraulic Cable Bender.
		Hydraulic cable bender	Vernon W. Pearson	Rockford, IL
		Hydraulic cable bender	Kenneth Hagemeyer	Rockford, IL
		Hydraulic cable bender	William E. Smeltzer	Rockford, IL
3,949,584	Apr. 13, 1976	Bending apparatus having a roller support unit for E.M.T., conduit and thin wall tubing	Vernon W. Pearson	Rockford, IL	This patent number has been seen in a 1988 Greenlee catalog, for their No. 800 Hydraulic Cable Bender and their No. 555SB Speed Bender conduit bending machine.
		Bending apparatus having a roller support unit for E.M.T., conduit and thin wall tubing	Larry G. Adleman	Rockford, IL
4,353,164	Oct. 12, 1982	Draw punch	Wayne Linquist	Rockford, IL	This metal punch cuts holes in electrical outlet boxes and the like, and splits the slug into two pieces for easier removal. This patent number has been seen in a 1988 Greenlee catalog, for SlugBuster and SlugSplitter punches. These punches are intended to be used with their hydraulic punch drivers and high capacity ratchet punch drivers. This patent's specification references patents 1,817,223, 2,221,904, 2,237,069, and 3,269,011.
		Draw punch	Vernon W. Pearson	Rockford, IL
4,375,128	Mar. 01, 1983	Manual keyway punching tool	Wayne Linquist	Rockford, IL	This tool cuts notches or slits in metal or plastic. The patent's specification references patents 3,263,545 and 4,111,022, the latter being a crimping tool that uses a two-lever similar mechanism. This patent's number has been seen in a 1988 Greenlee catalog, for their No. 720 Keyway Punch.
4,537,052	Aug. 27, 1985	Follow bar with cam tracks for rocker type conduit bender	Larry G. Adleman	Rockford, IL	The patent specification does not list an assignee but the patent records shows that it was filed by Ex-Cell-O Corp. A 1988 Greenlee catalog lists this patent number for their No. 881 Bender.
4,543,722	Oct. 01, 1985	Slug-splitting punch	Larry G. Adleman	Rockford, IL	This patent is an improvement to patent 4,353,164 to permit the punching of thicker and harder materials such as No. 10 stainless steel. This improvement patent number is listed in a 1988 Greenlee catalog, for their SlugBuster and SlugSplitter punches.
		Slug-splitting punch	Richard H. Malanaphy	Rockford, IL
4,553,738	Nov. 19, 1985	Cable pulling device with anti-reversing clutch	Jeffrey J. Plummer	Rockford, IL	This patent number has been seen in a 1988 Greenlee catalog, for their No. 6001 Super Tugger Cable Puller.
		Cable pulling device with anti-reversing clutch	Larry G. Adleman	Rockford, IL
4,555,093	Nov. 26, 1985	Cable pulling device with force indicator and overload protection	Jeffrey J. Plummer	Rockford, IL	This patent number has been seen in a 1988 Greenlee catalog, for their No. 6001 Super Tugger Cable Puller.
4,568,864	Feb. 04, 1986	Electric motor control for a pipe bender	Edward T. Gisske	Verona, WI	This patent number has been seen in a 1988 Greenlee catalog, for their Number 555SB Speed Bender conduit bending machine.
4,594,779	Jun. 17, 1986	Punch and die adapter	Kenneth Hagemeyer	Rockford, IL	This adapter is for use when punching a relatively large hole in thin sheet metal. It avoids an extra step of enlarging the pilot hole to accept a larger-diameter draw stud. This patent number has been seen in a 1988 Greenlee catalog, for their Nos. 7804SB and 7806SB Quick Draw Hydraulic Punch Drivers.