Implements or apparatus for applying pushing or pulling force – Portable implements or apparatus for tensioning flexible... – Material comprises resilient floor covering
Patent
1980-07-02
1982-11-30
Jillions, John M.
Implements or apparatus for applying pushing or pulling force
Portable implements or apparatus for tensioning flexible...
Material comprises resilient floor covering
173117, A47G 2704
Patent
active
043613110
ABSTRACT:
A carpet stretcher device comprising a body case having a handle fixed to the upper surface thereof, an electromagnetic coil axially installed in the body case, a plunger axially slidably fitted in the inner surface of the electromagnetic coil and normally urge rearwardly by a spring, and a spindle fixed to the rear end of an engaging head for engagement with carpets and axially slidably fitted in the front end of the body case, the arrangement being such that upon energization of the electromagnetic coil the plunger is advanced to strike the rear end of the engaging head with its front end.
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patent: 3572800 (1971-03-01), Graziano
patent: 3951382 (1976-04-01), Asbury
patent: 3977651 (1976-08-01), Chamberlain
patent: 4084787 (1978-04-01), Kowalczyk
patent: 4237987 (1980-12-01), Sherman
Koroyasu Arata
Takenaka Hiroshi
Jillions John M.
Kabushiki Kaisha Nihon Gijutsu Center
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