Patents by Inventor Francis L. Ring

Francis L. Ring 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).

  • Solder apparatus with dual hollow wave nozzles
    Patent number: 5156324
    Abstract: Two opposing hollow non-turbulent solder waves are provided which project inwards and solder is collected in a containment area. The two solder waves can have different flows and pressures, the first solder wave flooding the underside of a circuit board or other item and the second solder wave reducing a build up of solder. The soldering apparatus has a solder tank with a conveyor to convey items to a first solder wave and to a second solder wave. A solder containment area is provided between the two solder waves which receives solder from the solder waves and feeds the solder back into the solder tank.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: October 20, 1992
    Assignee: Electrovert LGD
    Inventors: Greg L. Hueste, Francis L. Ring