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Paul K. Davis
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Auburn, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for forming tapered spiral tubes
Patent number
6,339,945
Issue date
Jan 22, 2002
Pacific Roller Die Co., Inc.
Robert E. Miller
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Dry abrasive blasting head having rotating nozzles
Patent number
6,062,957
Issue date
May 16, 2000
Pacific Roller Die Company, Inc.
Edwin D. Klaft
B24 - GRINDING POLISHING
Information
Patent Grant
Pipe coupling and method of forming
Patent number
5,016,925
Issue date
May 21, 1991
Paul K. Davis
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method for welding ribbed pipe
Patent number
4,763,830
Issue date
Aug 16, 1988
Pacific Roller Die Co., Inc.
Paul K. Davis
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Spiral ribbed pipe
Patent number
4,630,650
Issue date
Dec 23, 1986
Pacific Roller Die Co., Inc.
Paul K. Davis
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Pipe coupling
Patent number
4,416,474
Issue date
Nov 22, 1983
Robert F. Miller
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method for removing camber from strip
Patent number
4,318,320
Issue date
Mar 9, 1982
Pacific Roller Die Co., Inc.
Paul K. Davis
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for removing camber from strip
Patent number
4,255,999
Issue date
Mar 17, 1981
Pacific Roller Die Co., Inc.
Paul K. Davis
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Double wall helical pipe and strip configuration for forming same
Patent number
4,129,152
Issue date
Dec 12, 1978
Pacific Roller Die Co., Inc.
Paul K. Davis
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
End recorrugator
Patent number
4,018,072
Issue date
Apr 19, 1977
Pacific Roller Die Co., Inc.
Paul K. Davis
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Conduit making machine with diameter control and method
Patent number
3,940,962
Issue date
Mar 2, 1976
Pacific Roller Die Company, Incorporated
Paul Knight Davis
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
Rectangilar-Ribbed Profile Tubular Core and Method
Publication number
20180099320
Publication date
Apr 12, 2018
Pacific Roller Die Company, Inc.
Robert F. Miller
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Apparatus for forming tapered spiral tubes
Publication number
20010018839
Publication date
Sep 6, 2001
Robert E. Miller
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...