Patents by Inventor John M. Persel

John M. Persel 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).

  • Patent number: 5115234
    Abstract: Method and apparatus for operating a copier-duplicator which initially produces a master and thereafter produces copies from the master. The copier-duplicator is enabled upon receipt of a valid access code to begin producing the master and copies thereof. Counts of the number of masters and copies are accumulated. The copy count is compared against a minimum amount and each time a new master is made and if the number of copies produced is less than said minimum, a violation count is stored together with its associated access code. If the copier-duplicator is in a lock-out mode, access is denied to the access code having a violation. If in a flag mode, access to the machine is permitted even if a violation code is present. However, there is a capability of displaying all of those access codes having a violation associated therewith. It is further possible to prevent access to the copier-duplicator in the event that the number of copies or masters exceeds a maximum permissible amount.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: May 19, 1992
    Assignee: Hecon Corporation
    Inventors: Charles B. Levinski, John M. Persel, David N. Widmann
  • Patent number: 5065426
    Abstract: A microprocessor/based telephone/facsimile controller which automatically gives priority to incoming messages. The ring voltage of an incoming message causes the microprocessor to close and latch the line between the telephone and the facsimile. When transmission is completed, the line is dropped and this condition is sensed causing the latch relay to open to prevent the facsimile from transmitting, no data being logged for incoming facsimile transmissions. Only a valid input code permits the coupling of the facsimile to the telephone line also initiating a timer. A broadcast mode latches the telephone line to permit delayed calls and multiple facsimile transmissions, each allocated to the user code which established the broadcast mode. A default time is utilized to accommodate the redial and use of the line for non-facsimile telephone transmission.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: November 12, 1991
    Assignee: Hecon Corporation
    Inventors: Harvey Greenstein, Charles B. Levinski, Edward Newman, John M. Persel, David N. Widmann
  • Patent number: D362664
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: September 26, 1995
    Assignee: Hecon Corporation
    Inventors: David N. Widmann, William S. Bagdi, John M. Persel, Rudolph Schoendienst, Kirk Phillips