TREA

John F. Shumaker

Follow

Person

  • Mount Pleasant, IA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Quick coupling and release mechanism for buckets
    • Patent number 4,643,631
    • Issue date Feb 17, 1987
    • J. I. Case Company
    • Herman J. Maurer
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Optimized earthworking tool operating linkage
    • Patent number 4,411,584
    • Issue date Oct 25, 1983
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Boom lock
    • Patent number 4,370,090
    • Issue date Jan 25, 1983
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Bucket mounted footing tool
    • Patent number 4,365,428
    • Issue date Dec 28, 1982
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Loader mechanism
    • Patent number 4,364,705
    • Issue date Dec 21, 1982
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Bucket with removable cutting plate
    • Patent number 4,360,982
    • Issue date Nov 30, 1982
    • J. I. Case Company
    • Herman J. Maurer
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Asymmetric backhoe
    • Patent number 4,358,240
    • Issue date Nov 9, 1982
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Self-leveling bucket linkage
    • Patent number 4,344,734
    • Issue date Aug 17, 1982
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Amplified loader arm
    • Patent number 4,329,797
    • Issue date May 18, 1982
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    See-through bucket
    • Patent number 4,309,142
    • Issue date Jan 5, 1982
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Straight arm loader
    • Patent number 4,295,779
    • Issue date Oct 20, 1981
    • J. I. Case Company
    • John F. Shumaker
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Stabilizer attachment for material handling implement
    • Patent number 4,026,428
    • Issue date May 31, 1977
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Vehicle stabilizer with adjustable foot
    • Patent number 4,018,458
    • Issue date Apr 19, 1977
    • J. I. Case Company
    • John F. Shumaker
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING