Implements or apparatus for applying pushing or pulling force – Pipe or rod jack – Tie rod tensioner
Patent
1992-04-30
1993-02-16
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Pipe or rod jack
Tie rod tensioner
E21B 1900
Patent
active
051864363
ABSTRACT:
An apparatus (10) for the single handed installation of an electrical fence pole (100) having a threaded end (103) and a stabilizing collar (104); wherein, the apparatus (10) has: a platform member (20) including a lower shelf element (21) adapted to receive the collar (104) and shaft (101) of the fence pole (100); an upper shelf element (22) adapted to transmit a downwardly directed force to the lower shelf element (21); and spring biased means (30) associated with the lower shelf element (21) for applying a downwardly directed force on the collar (104) to maintain the shaft (101) of the fence pole (100) in a vertical orientation, as the fence pole (100) is forced into penetrating engagement with the ground.
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patent: 3115726 (1963-12-01), Sayles
patent: 3329401 (1967-07-01), Becker et al.
patent: 3727357 (1975-04-01), Stillman, Jr.
patent: 3871617 (1975-03-01), Majima
patent: 4147457 (1979-04-01), Washida
patent: 4402166 (1983-09-01), Wortham, Jr.
patent: 4429849 (1984-02-01), Maier
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