Patents Assigned to Han Oetiker AG Maschinen- & Apparatefabrik
  • Patent number: 5562273
    Abstract: A pluggable coupling for pressure lines having a female coupling connector and a male coupling connector. The female coupling connector has two axially aligned connecting bores with different diameters and an annular groove formed between a wall surrounding the larger bore and a nipple surrounding the smaller bore. The male connector can be inserted into the larger bore of the female coupling connector. In the process, the male coupling connector is pushed over the nipple. A sealing element is positioned within a circular male coupling groove of the male coupling connector and sealingly encloses a smooth exterior surface of the nipple. The male coupling connector can be connected and disconnected from the female coupling connector with a relatively small amount of force as compared to the force required to connect and disconnect conventional couplings.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: October 8, 1996
    Assignee: Han Oetiker AG Maschinen- & Apparatefabrik
    Inventor: Albrecht Wuethrich