Patents Assigned to California Ammonia Co.
  • Patent number: 5163360
    Abstract: A live storage facility provides for the storage of large containers of product in a gas-tight enclosure containing an atmosphere precisely controlled to a preselected gas composition. Containers are introduced into the enclosure through a tunnel and removed through another tunnel, without significantly altering the gas atmosphere or temperature within the enclosure. An externally controlled crane moves and stacks the containers within the enclosure. The storage facility is preferably formed as a hemispherical dome with continuous walls that are impermeable to the gas. In one form, the product is agricultural produce, and there is additionally provided a cooling capability so that the product is stored at reduced temperature.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: November 17, 1992
    Assignee: California Ammonia Co.
    Inventor: David Petz
  • Patent number: 5061148
    Abstract: A material handling apparatus includes a central tower having an elevated pivot point, a movable base, a support track that rests at its upper end on the central tower pivot and at its lower end on the movable base, and a trolley with hoist that moves along the support track. The apparatus can lift articles within the span of the support track and move them to other locations, by a combination of movement of the trolley and the movable base, and operation of the hoist. The crane is particularly well suited for the handling of articles and containers within domed structures.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: October 29, 1991
    Assignee: California Ammonia Co.
    Inventor: David Petz