Snow removing machine

Details Snow removing machine Snow removing machine

2007-01-02

2007-01-02

Novosad, Christopher J. (Department: 3641)

Excavating

Snow or ice removing or grooming by portable device

Motorized rotary excavating tool

C701S050000

Reexamination Certificate

active

11258814

ABSTRACT:
A snow removing machine including a control unit for controlling lifting and lowering of an auger housing by an electrohydraulic cylinder. The control unit has the functions of presetting per-unit-time lifting and lowering distances as constants; setting the lowest position as a lifting time measurement starting point upon lifting of the auger housing; setting the highest position as a lowering time measurement starting point upon lowering of the auger housing; measuring a time of movement from the measurement starting point depending on a lifting or lowering operation; and estimating the current vertical movement position by multiplying the lifting or lowering time with a corresponding one of the constants.

REFERENCES:
patent: 2005/0069385 (2005-03-01), Quenzi et al.
patent: 4194109 (1992-07-01), None

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