Patents by Inventor Lazaro R. Espina

Lazaro R. Espina 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).

  • Patent number: 6764025
    Abstract: An assembly for isolating and protecting the head and shaft of sprinklers from the surrounding soil, vegetation and external impacts, once it is installed into the ground. The assembly including a tubular chamber having an upper opened end and a lower threaded opening that allows the connection of the sprinkler with the water supply, the dimensions inside the tubular chamber are enough for a user's hand to manipulate the sprinkler shaft. This assembly further includes a retention ring mounted into a shield member that in turn is mounted to the tubular chamber and kept in place by a locking mechanism. The sprinkler shaft is housed inside the tubular chamber while the sprinkler head is protected in a recess defined by the inner lateral wall of the shield and a rubber gasket.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: July 20, 2004
    Inventor: Lazaro R. Espina