Patents Represented by Attorney Robert H. Eckhoff
  • Patent number: 3949548
    Abstract: The gas turbine regeneration package is designed to increase the efficiency of gas turbines with exhaust gas recirculation. Besides the gas turbine itself, four basic components are used to make up the efficiency package: the first is an exhaust gas cooler, the second is an exhaust gas cooling fan, the third is a recycle exhaust gas regenerator and finally there is a compressed ambient air regenerator. Other turbines have ambient air regenerators but they are not used in conjunction with a recycled gas stream so they tend to have high concentrations of NO.sub.x in their exhaust gases. The basic advantage of this regenerator package includes the following:A. increased efficiency of the turbine at full and reduced power settings,B. cooler turbine exhaust is emitted to the atmosphere,C. better control over the combustion process particularly the production of oxides of nitrogen,D. reduced noise, andE. the use of ambient air as part of the engine heat sink.
    Type: Grant
    Filed: June 13, 1974
    Date of Patent: April 13, 1976
    Inventor: Hanford N. Lockwood, Jr.
  • Patent number: 3949768
    Abstract: A reusable denture kit is provided to enable a denture wearer to care adequately for a denture, to maintain it in a desired condition of cleanliness and to facilitate retention of the denture in place.
    Type: Grant
    Filed: February 21, 1975
    Date of Patent: April 13, 1976
    Inventor: Barbara J. Doyle
  • Patent number: 3949931
    Abstract: A box construction is provided in which the top closure of the box is secured to each of the side walls in such a manner that once the top has been secured in place, it cannot be moved to an open position without such damage to the box that this is readily apparent. In this way, any attempt at pilferage is readily ascertained.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: April 13, 1976
    Assignee: Willamette Industries, Inc.
    Inventor: Richard A. Hall
  • Patent number: 3948161
    Abstract: A multi-lane machine for removing the seed cell from previously cored apples by selectively cutting a cavity therein. Various size apples are accommodated and the size of the seed cell cavity is varied depending on the size of the apple. The apples are conveyed along a path while the core hole is oriented relative to the path. Taking advantage of the alignment of the core hole, the apples are transferred onto a spindle and moved therealong by a pair of centering jaws to a seed cell station. The medial plane of the apple is positioned over a seed celling knife on the spindle while the size of the apple is measured as it is moved into the seed celling station. The knife is crescent-shaped and pivotally housed in and rotated by the spindle. A knife control mechanism extends the rotating knife into the seed cell a distance determinate of the size of the apple and in timed sequence with the movement of the jaws. Subsequently, the apple is displaced along the spindle and through a die to cut the apple in segments.
    Type: Grant
    Filed: September 18, 1974
    Date of Patent: April 6, 1976
    Assignee: Atlas Pacific Engineering Company
    Inventor: Sheldon E. Thorson