Radial piston drive motor assembly with exhaust passages in cylinder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 16, 1989
Grant Date -
N/A
app pub date -
May 5, 1987
filing date -
May 5, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An air motor 24 which may be employed in a mine drilling apparatus includes a hollow body 26 formed of a plastic material, and a driven shaft 38 rotatably supported by the body 26 and incorporating a valve assembly 34. The body 26 has opposing pairs of external faces 58 within which are mounted metal cylinder sleeves 29 which receive pistons 30. A cylinder head 31 of plastic material closes each cylinder 29 and a piston rod couples opposing pairs of pistons 30 and engages the shaft 38 so that power may be transmitted to this driven shaft 38.
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Cited Art Landscape
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