Patents Assigned to Truplast Konststofftechnik GmbH
  • Patent number: 6015298
    Abstract: A vacuum-cleaner hose with electrical conductors comprises a hose made of a soft thermoplastic material. A support carrier, made out of a harder material than the material of the hose, is attached at one end of the hose for electrical slip rings. One of the electrical conductors is in each case connected to the slip rings. An end socket is inserted into the end of the hose exhibiting the support carrier, is connected to the support carrier, and is made of the same material as the support carrier. The support carrier is made of a socket ring, provided with at least one slip ring, and a sleeve, disposed in front of the socket ring. The sleeve is provided with a continuous axial slot and includes two additional slip rings, and the sleeve is connected form-matchingly to the socket ring and to the end socket. At least one thread turn is formed at an inner jacket face of the sleeve and forms a counter thread for the wave troughs and the wave crests of the hose.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: January 18, 2000
    Assignee: Truplast Konststofftechnik GmbH
    Inventor: Georg Peter Linhart