Inventor
John M. Check
Inventor
Chelsea, MI, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B23Hprimary
B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool36%
Y10TTechnical subjects covered by former us classification16%
B29CShaping or joining of plastics8%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts8%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof8%
A47KSanitary equipment4%
B21KMaking forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels4%
B23PMetal-working not otherwise provided for4%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling4%
B24BMachines, devices, or processes for grinding or polishing4%
PatentTitleYear
6,425,752'Bubbler tube with integral inlet pipe and bimetal core for injection molding tools and method of making the bubbler tube'20025,940,895'Heated toilet seat'19995,498,150'High thermal capacity mold assembly'19964,814,573'Electrical discharge machining apparatus with exchangeable electrode refeed cartridge'19894,782,203'Wire guide for electric discharge machine'19884,739,145'System for positioning and transferring EDM electrodes'19884,721,839'Combined bore seat face grinding, EDM and lapping method for finishing fuel injector nozzle bodies'19884,703,142'Method of combining grinding and EDM operation for finishing fuel injector nozzle bodies'19874,644,125'D.C. motor driven EDM head'19874,639,568'Apparatus and method for finishing fuel injector spray tips using EDM'19874,195,448'Two-point contact steady rest follower'19804,191,878'Electrode positioning gage for multiple electrode electrical discharge machining apparatus'19804,044,216'Multiple electrode electrical discharge machining'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1980Patents assigned to RAYCON CORP (3)· patent assignee history
1977–1989Based in Chelsea, MI, US· patent location history
1987–1989Patents assigned to EX CELL O CORP (6)· patent assignee history
1988Patents assigned to RAYCON TEXTRON INC (1)· patent assignee history
1996Based in Traverse City, MI, US· patent location history
1999Patents assigned to KOHLER CO (1)· patent assignee history
1999Based in Manitowoc, WI, US· patent location history
2002Based in Williamsburg, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EX CELL O CORP | 6 | 1987–1989 |
| RAYCON CORP | 3 | 1977–1980 |
| KOHLER CO | 1 | 1999 |
| RAYCON TEXTRON INC | 1 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chelsea, MI, US | 10 | 1977–1989 |
| Williamsburg, MI, US | 1 | 2002 |
| Manitowoc, WI, US | 1 | 1999 |
| Traverse City, MI, US | 1 | 1996 |