Patents by Inventor Pierre Mathys

Pierre Mathys 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: 20070270918
    Abstract: The present invention relates to an appliance for the direct measurement, display, processing and transmission, remotely, of electromyographic signals (EMG) comprising: an electrical stimulator (1) comprising electrodes for the excitation of a peripheral motor nerve; a pair of electrodes (31), for the acquisition of the EMG response at the level of the muscle associated with this peripheral nerve; an acquisition chain (2) driven by a micro-controller (3, 39), presenting means of conditioning of the input signal, comprising at least one differential preamplifier (22, 33), a bandpass filter (25, 34) and an analog/digital converter (ADC) (26, 310), said acquisition chain (2) being linked, via a standardized interface (5), to a computer (4) comprising means of storage (9) and of display of the EMG signals acquired as well as an executable program for effecting the interface with the user (6) and utilizing the data stored; characterized in that the acquisition chain (2) comprises means of automatic adjustment of t
    Type: Application
    Filed: November 10, 2005
    Publication date: November 22, 2007
    Applicant: Universite Libre De Bruxelles
    Inventors: Maxime De Bel, Francis Cantraine, Pierre Mathys
  • Patent number: 5278807
    Abstract: A manually or automatically wound extra-thin watch movement, comprising at least one barrel (3) and in which all the wheel sets are assembled in cantilever on one sole base plate (1) with the help of one ball bearing only (15 to 21). The ratchet (25) is in the form of a drum surrounding the barrel. It is swivelled by its periphery with the help of at least three rollers, each pivoted on a ball bearing, and the barrel (3) is pivoted within the ratchet by means of a ball bearing (23). This design enables reducing to a minimum the energy losses due to friction.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: January 11, 1994
    Assignee: Frederic Piguet S.A.
    Inventor: Pierre Mathys
  • Patent number: 5119348
    Abstract: In the mechanical selfwinding watch movement with an oscillating winding weight, the winding weight and the spring barrel driving the movement are pivoted coaxially, in the center of the movement, above the winding and the movement gears. The winding weight and the spring barrel have substantially the same thickness and they are on the same level. The spring barrel occupies almost the whole space in the path of the heavy sector of the winding weight. Due to the permissible size of such a spring barrel, the latter is able to store up an energy sufficient to keep the movement running during eight days at least.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: June 2, 1992
    Assignee: Frederic Piguet S.A.
    Inventor: Pierre Mathys
  • Patent number: 4132061
    Abstract: An extra-thin manually or automatically wound watch movement in which at least one wheel is pivoted in an overhang position by means of a single-race miniaturized ball bearing.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: January 2, 1979
    Assignee: Bouchet-Lassale S.A.
    Inventor: Pierre Mathys
  • Patent number: 4117664
    Abstract: The invention relates to a pivoting device for the barrel of a thin watch which comprises at least three rollers pivoted on miniature ball bearings and engaging with the periphery of the barrel.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: October 3, 1978
    Assignee: Bouchet-Lassale S.A.
    Inventor: Pierre Mathys