Patents Examined by David Schonberg
  • Microscope objective
    Patent number: 4009945
    Abstract: A microscope objective of the strong, dry type wherein the lenses at the object end of the system are particularly small and wherein the curvature of the field is corrected and the image field is flattened by a front lens consisting of a thick meniscus lens is improved to overcome manufacturing and correction difficulties by providing lenses to first widen and then narrow the path of the bundle of rays from the thick meniscus lens and simultaneously to correct aberrations, particularly for large view fields. The objective of this invention is designed for use with medium and high apertures.
    Type: Grant
    Filed: September 1, 1967
    Date of Patent: March 1, 1977
    Inventor: Walter Klein
  • System for generating electrical energy to supply power to propel vehicles
    Patent number: 3971454
    Abstract: Solar radiant energy and high-intensity light are converted to electrical energy to supply electrical power for propelling vehicles in a safe, economical and efficient manner.The radiant energy can be beamed from outer space by the use of satellites with collecting surfaces which can produce and store electrical power and which can distribute the electrical power to earth stations for redistribution to high-intensity light sources. High-intensity light-receiving cells or panels are fixed to the surface of a vehicle to collect the high-intensity light and to convert the light into useful electric power to operate the vehicle. Energy can be stored in batteries for subsequent use.A vehicle can also be powered by hybrid means including solar cells and gas turbines.
    Type: Grant
    Filed: April 13, 1973
    Date of Patent: July 27, 1976
    Inventor: Nelson J. Waterbury
  • Digital speed control
    Patent number: 3941202
    Abstract: The present invention relates to a digital system for maintaining the speed of a motor vehicle at a preselected speed. The desired speed of the vehicle is set into a digital memory bank and the instantaneous actual speed of the vehicle is determined by a digital readout. The desired vehicle speed and the actual speed of the vehicle are compared to produce a digital error signal which is used to control the throttle setting of the vehicle to cause the actual speed of the vehicle to equal the desired speed.
    Type: Grant
    Filed: April 30, 1970
    Date of Patent: March 2, 1976
    Assignee: TRW Inc.
    Inventor: Morris Sorkin
  • Removable vehicle chassis sub-frame with engine
    Patent number: RE28675
    Abstract: A heavy duty motor vehicle has a main frame with a forward axle and steerable ground wheels. A power unit sub-frame carrying a rear axle is releasably secured to the main frame, and includes an engine assembly which is located at an intermediate position between the axles. The unit may also include a fifth wheel assembly whereby it becomes a towing vehicle for a further trailer unit or units.
    Type: Grant
    Filed: July 25, 1974
    Date of Patent: January 6, 1976
    Inventor: Dean Hobbensiefken