Patents by Inventor Carl J. Ernesti

Carl J. Ernesti 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: 7131678
    Abstract: The magnetic tool has a narrow, elongate, rigid shank having a handgrip end and a selectively extendible and retractable magnet at the opposite working end. Various mechanisms are provided at the handgrip end to extend and retract the magnet. The working end of the tool may be provided with a polygonal (e.g., hexagonal, square, etc.) receptacle for the removable installation of a tool bit or square drive socket therein. The retracted magnet retains the bit or socket within the receptacle as desired. The magnetic tool is particularly well-adapted for insertion into a pushrod passage in the cylinder head of an overhead valve engine, for retracting a valve lifter away from the lobe of the camshaft to facilitate removal and replacement of the camshaft. A linear scale depth gauge may be provided, and an adjustably positionable collar may be provided to hold the tool with the lifter retracted.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: November 7, 2006
    Inventor: Carl J. Ernesti
  • Patent number: 6901823
    Abstract: The reversible magnetic ratcheting spud wrench is a spud wrench having a ratcheting head in place of the typical open-ended U-shaped wrench head. The combination ratcheting spud wrench eliminates the need for a construction worker to use a separate ratchet wrench for securing bolts in the bolt holes of interconnecting steel beams after the bolt holes have been aligned by the spud wrench. The ratcheting spud wrench also includes a milled slot along the handle of the wrench having a magnetic strip disposed in the slot. The magnetic strip allows the wrench to be placed on one of the steel structural beams when it is not being used without having the wrench drop from the work place.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: June 7, 2005
    Inventor: Carl J. Ernesti
  • Patent number: 6865971
    Abstract: The wrench stop for preventing a gripping end of a wrench from sliding off the lands of a fastener, such as a nut or bolt head. The wrench stop includes a hole through its center so that the wrench stop slides over the shank of a stud or bolt when fastening a nut thereto. The wrench stop may be magnetized to provide positive attachment to the fastener. The wrench stop may be attached to an open-end wrench, a box-end wrench, a combination wrench, a ratcheting box-end wrench, etc.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: March 15, 2005
    Inventor: Carl J. Ernesti
  • Publication number: 20040261587
    Abstract: The wrench stop for preventing a gripping end of a wrench from sliding off the lands of a fastener, such as a nut or bolt head. The wrench stop includes a hole through its center so that the wrench stop slides over the shank of a stud or bolt when fastening a nut thereto. The wrench stop may be magnetized to provide positive attachment to the fastener. The wrench stop may be attached to an open-end wrench, a box-end wrench, a combination wrench, a ratcheting box-end wrench, etc.
    Type: Application
    Filed: June 25, 2003
    Publication date: December 30, 2004
    Inventor: Carl J. Ernesti