Patents Assigned to Walter GmbH
  • Patent number: 5031414
    Abstract: Discarded refrigerators, freezers and like cooling units are relieved of confined supplies of coolant and/or lubricant by transporting them onto a tiltable platform which attracts the cooling units by suction and tilts them until the freshly tapped portion of the normally closed circuit for coolant or lubricant is located at the lowermost point of the circuit. The lubricant or coolant can be evacuated by a pump by way of a conduit which is connected to a tapping tool and discharges into a vessel. Alternatively, the coolant or lubricant is caused to flow from the tapped circuit by gravity to gather in a vessel beneath the tiltable platform. The transporting system for cooling units can employ trolleys and winches with suction cups which lift discarded cooling units from the gathering point for discarded cooling units and remove cooling units from the platform when the lubricant- or coolant-evacuating operation is completed.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: July 16, 1991
    Assignee: Walter GmbH
    Inventors: Hans-Peter Walter, Alfred Walter
  • Patent number: 4803672
    Abstract: An electric timepiece having a square dial with corners at the twelve, three, six and nine o'clock positions has a first array of twelve light sources at one to twelve o'clock positions, a second array of four light sources which are inwardly adjacent the light sources of the first array at the twelve, three, six and nine o'clock positions, and a centrally located light source. The color and/or intensity of radiation issuing from the centrally located light source changes at midnight and at noon, and all of the remaining light sources are used to indicate minutes. The light sources of the second array indicate single-minute periods, and the light sources of the first array indicate five-minute periods. In addition, the light sources of the first array are used to indicate hours in colors or hues other than those used to denote five-minute periods.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: February 7, 1989
    Assignee: Walter GmbH
    Inventor: Klaus D. Zang
  • Patent number: D304690
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: November 21, 1989
    Assignee: Walter GmbH
    Inventor: Klaus D. Zang