Patents by Inventor Wolters Acosta

Wolters Acosta 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).

  • Access door with lift assist
    Patent number: 9303441
    Abstract: The invention described herein relates to a utility vault door, or access door, positionable between closed, partially opened, and fully opened orientations and including at least one compression spring lift-assist mechanism for countering the weight of the vault door when positioning between the various orientations. The door may be selectively locked in the partially opened orientation and opened sufficiently for the convenient ingress and egress of large equipment therethrough.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: April 5, 2016
    Assignee: U.S.F. Fabrication, Inc.
    Inventors: Andres Bravo, Wolters Acosta, Marvin Ernesto Lopez
  • Access Door with Lift Assist
    Publication number: 20150218773
    Abstract: The invention described herein relates to a utility vault door, or access door, positionable between closed, partially opened, and fully opened orientations and including at least one compression spring lift-assist mechanism for countering the weight of the vault door when positioning between the various orientations. The door may be selectively locked in the partially opened orientation and opened sufficiently for the convenient ingress and egress of large equipment therethrough.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 6, 2015
    Applicant: U.S.F. FABRICATION, INC.
    Inventors: Andres Bravo, Wolters Acosta, Marvin Ernesto Lopez