US PATENT SUBCLASS 418 / 55.3
.~.~ With specific rotation preventing or rotation coupling means

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

54  DF  WORKING MEMBER HAS PLANETARY OR PLANETATING MOVEMENT {6}
55.1  DF  .~ Helical working member, e.g., scroll {5}
55.3.~.~ With specific rotation preventing or rotation coupling means

DEFINITION

Classification: 418/55.3

With specific rotation preventing or rotation coupling means:

(under subclass 55.1) Apparatus in which (1) a locking means prevents the moveable scroll from rotating and forces the moveable scroll to move in an orbital motion or (2) a connecting means joins both scrolls for relative movement about an eccentric axis.