Patents by Inventor Nelson Hernandez

Nelson Hernandez has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Concrete admixture weighing and dispensing system
    Patent number: 5377868
    Abstract: Apparatus and method for dispensing admixtures based upon weight. One or more admixture storage containers are supported in one embodiment by a suspended platform, and in another embodiment by brackets. A weight sensing system such as a single load cell is used for weighing the contents of the admixture storage containers. The platform or brackets are arranged so that the load cell is responsive to less than 100% of the weight in the containers. The containers are filled to a predetermined weight, and the contents are dispensed from each container in series or simultaneously.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: January 3, 1995
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Nelson Hernandez, Randall Fierke
  • Concrete admixture weighing and dispensing system
    Patent number: 5224626
    Abstract: Apparatus and method for dispensing admixtures based upon weight. One or more admixture storage containers are supported in one embodiment by a suspended platform, and in another embodiment by brackets. A weight sensing system such as a single load cell is used for weighing the contents of the admixture storage containers. The platform or brackets are arranged so that the load cell is responsive to less than 100% of the weight in the containers. The containers are filled to a predetermined weight, and the contents are dispensed from each container in series or simultaneously.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: July 6, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Nelson Hernandez