Patents by Inventor John L. Pfeffer

John L. Pfeffer 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).

  • Publication number: 20030182845
    Abstract: Multiple leaves and a binder which are particularly adapted to conveniently and accessibly store, organize, and display pre-tied flies and tippets. The flies are tied on a fishing hook which has a pointed end portion, and an eye to which the tippet is pre-tied in advance of active use. A first leaf comprises: a hook reception member having a thickness sufficient to receive the pointed end portion of the hook, and two opposite sides, one opposite side of which is adhered to a front side portion of the first leaf. The pointed end portion of the fishing hook may be first hooked into the thickness of the hook reception block, and then the tippet may be wound around the leaf.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 2, 2003
    Inventor: John L. Pfeffer
  • Patent number: 5437332
    Abstract: A control system for wild oil and gas wells etc. using a centered, angled tubular device placed over and attached to the well head by clamps and remotely controlled hydraulic cylinders. The discharge of the well is directed into the bottom of the device, having movable blades forming two apertures used to minimize the induction of air from the exterior. Inert gas from engines powering pumps is injected into the space between the apertures, so that greater than atmospheric pressure in this chamber will result in the outflow of inert gas and prevent induction of air. Inert gas can also be injected into the main body of the device when required to prevent combustion. High pressure motive fluid is discharged from nozzles within the angled chamber of the device, directing the oil and liquids which impinge on the upper surface of the tube to be directed by baffles to its bottom, then flowing into a collecting trough and drawn through slots in the trough bottom by fluid jet eductors.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: August 1, 1995
    Inventor: John L. Pfeffer