TEMPORARY ROOF SUPPORT SYSTEM WITH ANTI-ROTATION FEATURE
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United States of America Patent
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-
N/A
Issued Date -
Apr 14, 2016
app pub date -
Dec 17, 2015
filing date -
Dec 17, 2015
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A temporary roof support system with an anti-rotation feature is provided. The temporary roof support system includes a base, a multistage hydraulic cylinder, a multistage telescopic cover assembly and a locking tube assembly. The multistage telescopic cover assembly encompasses the multistage hydraulic cylinder, and includes a first plurality of cylinders of successively differing diameters disposed coaxially. The locking, tube assembly includes a second plurality of cylinders disposed coaxially and of successively differing diameters including an outermost cylinder and an innermost cylinder. The second pivot end of the locking tube assembly is coupled to the crossbar and the first pivot end of the locking tube assembly is coupled to the base, and a length of the locking tube assembly is parallel to the vertical axis.
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