Patents by Inventor Raul F. Vidal

Raul F. Vidal 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: 7047592
    Abstract: A combination blower assembly and string trimmer whereby the string trimmer head is easily detachable without the use of any tools. The device includes a blower assembly that further includes an upper and lower housing mated together to form a volute-shaped cavity where an impeller with airfoil-shaped blades reside. The detachable string trimmer head is located under the lower housing of the blower assembly and is easily attached or removed from the blower assembly by a simple push and turn motion. The blower assembly further includes an air inlet and air inlet cover. When the air inlet cover is rotated to a position where the air inlet is open the blower assembly is operable and the string trimmer is inoperable. Furthermore, when the air inlet cover is rotated to a position where the air inlet is closed the blower assembly is inoperable and the string trimmer is operable.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: May 23, 2006
    Assignee: MTD Products, Inc.
    Inventors: J. Barney Sing, Amit Saha, Raul F. Vidal, Neil G. Griffin
  • Publication number: 20040154127
    Abstract: A combination blower assembly and string trimmer whereby the string trimmer head is easily detachable without the use of any tools. The device includes a blower assembly that further includes an upper and lower housing mated together to form a volute-shaped cavity where an impeller with airfoil-shaped blades reside. The detachable string trimmer head is located under the lower housing of the blower assembly and is easily attached or removed from the blower assembly by a simple push and turn motion. The blower assembly further includes an air inlet and air inlet cover. When the air inlet cover is rotated to a position where the air inlet is open the blower assembly is operable and the string trimmer is inoperable. Furthermore, when the air inlet cover is rotated to a position where the air inlet is closed the blower assembly is inoperable and the string trimmer is operable.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 12, 2004
    Inventors: J. Barney Sing, Amit Saha, Raul F. Vidal, Neil G. Griffin
  • Publication number: 20030079455
    Abstract: A compact, lightweight, and easy-to-use wheeled lawn care unit comprising a two-wheeled carriage, a power source, a plurality of tools, which may be alternatively connected to the power source, a handle, and a boom connecting the selected tool to the power source. The power source is interchangeable and the location of the power source and boom portions allow the center of gravity to remain substantially fixed regardless of which tool is being used.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 1, 2003
    Applicant: MTD Products Inc
    Inventors: Lakhbir Singh Suchdev, Raul F. Vidal
  • Publication number: 20020124540
    Abstract: A compact, lightweight and easy-to-use wheeled lawn care unit comprising a two-wheeled carriage, a power source, plurality of tools which may be alternatively connected to the power source, a handle and a boom connecting the selected tool to the power source. The power source is pivotally connected to the carriage at a location within its footprint. The unit has a low center of gravity by placing the power source pivot and center of gravity within a cylinder defined by the wheels. The boom extends horizontally from the power source and is of a split boom configuration which allows selective rotation for the boom portions relative to one another. An edger that can be selected for the unit, which includes a spring-loaded wheel. The edger may be rotated from a non-working position where the edger blade does not contact the ground to a working position by rocking a handle behind the carriage forward against the bias of the spring. A second more compact version has the shield positioned on the boom.
    Type: Application
    Filed: February 12, 2002
    Publication date: September 12, 2002
    Inventors: Robert G. Everts, Jeffrey M. Dils, Kenneth M. Brazell, Raul F. Vidal
  • Patent number: 6345489
    Abstract: A compact, lightweight and easy-to-use wheeled lawn care unit comprising a two-wheeled carriage, a power source, plurality of tools which may be alternatively connected to the power source, a handle and a boom connecting the selected tool to the power source. The power source is pivotally connected to the carriage at a location within its footprint. The unit has a low center of gravity by placing the power source pivot and center of gravity within a cylinder defined by the wheels. The boom extends horizontally from the power source and is of a split boom configuration which allows selective rotation for the boom portions relative to one another. An edger can be selected for the unit, which includes a spring-loaded wheel. The edger may be rotated from a non-working position where the edger blade does not contact the ground to a working position by rocking a handle behind the carriage forward against the bias of the spring. A second more compact version has the shield positioned on the boom.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: February 12, 2002
    Assignee: MTD Southwest, Inc.
    Inventors: Robert G. Everts, Jeffrey M. Dils, Kenneth M. Brazell, Raul F. Vidal