Gas cylinder lifting cart
    1.
    发明授权

    公开(公告)号:US11414116B1

    公开(公告)日:2022-08-16

    申请号:US17342972

    申请日:2021-06-09

    申请人: Valtra Inc.

    发明人: Harry Wong

    摘要: Present invention relates to gas cylinder lifting cart having a base frame, a long bar, a keeper bar where the cylinder can be held securely during transport by friction pads on holding brackets, with at least a caster wheel providing easy steering. The keeper bar provides open access to put on a gas cylinder, instead of the hassle, and inherent danger, of lifting a gas cylinder vertically up and down to put on the cart. The base frame has a slight bent angle to facilitate easy tilting towards a slant angle for transport.

    Grinder and tool rest system
    2.
    发明授权

    公开(公告)号:US11035519B2

    公开(公告)日:2021-06-15

    申请号:US16592548

    申请日:2019-10-03

    申请人: Valtra Inc.

    发明人: Harry Wong

    摘要: Present invention teaches tool rest system having a magnetic base and a height-and-angle adjustable arm with a platform situated at the top portion of the arm, for working on the surface of a welding table with ferromagnetic attribute. An anti-tipping plate provides the anti-tipping power when a large or heavy load is placed upon the platform on the arm that is adjustable by two screws. Additional features of cable hanger and storage box adds to the convenience of use for welding work.

    Notcher
    3.
    发明授权
    Notcher 有权

    公开(公告)号:US10780486B1

    公开(公告)日:2020-09-22

    申请号:US16534628

    申请日:2019-08-07

    申请人: Valtra Inc.

    发明人: Harry Wong

    IPC分类号: B21D28/02 B21D28/24 B21D28/12

    摘要: Present invention teaches a notcher having primary structures of a base plate with a mounting plate set in a vertical orientation. A square plate carries a pivotable trapezoidal plate that carries the notcher assembly. The square plate is slidably connected to said mounting plate wedges on the square plate where those wedges match to v-grooves on the side of the mounting plate. A T-post clamp serves to provide the holding structure to hold work pieces in place for the notcher assembly to do the needed work of cutting/notching out a hole.