Patents by Inventor Norman A. MacLeod

Norman A. MacLeod 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: 20090270900
    Abstract: A body friendly, multi-purpose, largely invisible, sub-dermal or trans-dermal body pierce system offering numerous applications. One embodiment is for the rapid mounting of extremely compact, attractive, comfortable, magnetically self aligning, temples, eyewear. Another is as a means for quick change, body friendly, pierce-style jewelry. Yet another is as a sub-dermal medication dispenser. The thin, flexible and essentially invisible pierce component is inserted with specialized tooling for minimal tissue damage and discomfort with a substantially reduced healing period.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 29, 2009
    Inventor: Edward Norman MacLeod
  • Publication number: 20090247800
    Abstract: A process for hydrogenating olefins is disclosed. The olefins are present in a feed gas which includes H2 and one or more sulfur compounds. The sulfur compounds may include H2S and organic sulfur compounds. The feed gas is passed through a reactor at an inlet temperature from 100° C. to 250° C. The reactor contains a catalyst which is active at the inlet temperature. The reactor may be adiabatic. Saturated hydrocarbons are formed from the olefins. A temperature gradient may be formed in the reactor due to the exothermic nature of the hydrogenation reaction, causing the temperature to increase downstream in the reactor. At temperatures higher than the inlet temperature, H2S may be formed from organic sulfur compounds. A gas mixture including saturated hydrocarbons, H2S and H2 exits the reactor and may be brought into contact with a chemical adsorbent which removes the H2S. The gas stream may then be passed to a steam methane reformer.
    Type: Application
    Filed: November 4, 2008
    Publication date: October 1, 2009
    Applicants: Air Products and Chemicals, Inc., Johnson Matthey PLC
    Inventors: Ruth A. Davis, Norman Macleod, Gordon Edward Wilson
  • Patent number: 5875763
    Abstract: A magneto-based, variable-timing ignition system for an internal combustion engine is provided that maintains at least one operating parameter of the engine within a predetermined limit. An electronic controller sets the timing of spark events based on engine performance criteria such as the temperature of the engine's cylinder head, speed and manifold pressure. If the values of one of these parameters, such as engine temperature, extends beyond a predetermine limit, the electronic controller retards the advance timing of the spark events to draw back within the limit the values of the parameter. The timing of spark events is ordinarily under electronic control. If the electronic control fails, the system provides spark events whose timing are fixed and synchronized to the mechanical rotation of the crankshaft of the engine.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: March 2, 1999
    Assignee: Unison Industries Limited Partnership
    Inventors: Bradley D. Mottier, J. Norman MacLeod, Dean Mechlowitz
  • Patent number: 5630384
    Abstract: A capacitative discharge device is provided as part of a magneto-based ignition system for enhancing the starting performance of the ignition system for an internal combustion engine. The ignition system incorporating the invention is applicable to conventional mechanically timed magnetos, including those intended to incorporate impulse coupling or inductive vibrators as starting aids. Although the ignition system incorporating the invention is primarily intended for aerospace applications, its relative small size the light weight make it also ideal for any type of portable application.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: May 20, 1997
    Assignee: Unison Industries Limited Partnership
    Inventors: Bradley D. Mottier, J. Norman MacLeod
  • Patent number: 5544633
    Abstract: An ignition system is provided for an internal combustion engine that operates in two modes. In a first mode, the timing of the spark event is under electronic control. In a second mode, the timing of the spark event is fixed and synchronized to the mechanical rotation of the crankshaft of the engine. Under normal operating conditions, the timing of the spark event is electronically controlled. If the electrical system of the engine malfunctions, the ignition system defaults to the second mode in which ignition timing is mechanically controlled.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: August 13, 1996
    Assignee: Unison Industries Limited Partnership
    Inventors: Bradley D. Mottier, J. Norman MacLeod, Dean Mechlowitz, Randy Erickson
  • Patent number: 4821326
    Abstract: A non-audible speech generation apparatus and method for producing non-audible speech signals which includes an ultrasonic transducer or vibrator for projecting a series of glottal shaped ultrasonic pulses to the vocal track of a speaker. The glottal pulses, in the approximate frequency spectrum extending from fifteen kilohertz to one hundred five kilohertz, contain harmonics of approximately 30 times the frequency of the acoustical harmonics generated by the vocal cords, but which may nevertheless be amplitude modulated to produce non-audible speech by the speaker's silently mouthing of words. The ultrasonic speech is then received by an ultrasonic detector disposed outside of the speaker's mouth and electrically communicated to a translation device which down converts the ultrasonic signals to corresponding signals in the audible frequency range and synthesizes the signals into artificial speech.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: April 11, 1989
    Assignee: Macrowave Technology Corporation
    Inventor: Norman MacLeod
  • Patent number: 4253971
    Abstract: A method of controlling pathogenic organisms, fungi and algae in water which includes the steps of applying to the water a primary reagent comprising a linear polymeric biguanide or a salt thereof which in its free base form has a recurring polymer unit represented by the formula ##STR1## wherein X and Y represent bridging groups in which together the total number of carbon atoms directly interposed between the pairs of nitrogen atoms linked by X and Y is more than 9 and less than 17, and a back-up algicidal agent comprising a substance which in the aqueous phase produces hydrogen peroxide, preferably persalts selected from perborates, percarbonates, peroxides and persulphates.
    Type: Grant
    Filed: October 2, 1979
    Date of Patent: March 3, 1981
    Inventors: Norman A. MacLeod, Charles P. N. Webb
  • Patent number: 4061121
    Abstract: A magneto-alternator has a plurality of alternator coils for lighting or the like and a main ignition coil for a breaker-point ignition. Stator laminations are arranged so that the ignition coil is between two alternator coils and each coil is effectively on an E-shaped core with an outer leg of each E-shaped core being shared with an adjacent coil. The flywheel has a plurality of ceramic magnets having a high potential energy so that a high alternator output is developed. The center core leg of the E core on which the ignition coil is mounted has a large air gap relative to the air gaps at the other core legs to compensate for the high energy of the magnets and thereby limit current at the breaker points. The large air gap also makes the magneto output insensitive to production tolerances in the air gap.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: December 6, 1977
    Assignee: Tecumseh Products Company
    Inventor: John Norman MacLeod