Patents by Inventor Donald J. Ladanyi

Donald J. Ladanyi 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: 9697723
    Abstract: An illuminated doorbell touch pad system is disclosed, having a chime control unit controlled by a micro-processor which continually calibrates according to a process for discriminating between a human touch and moisture, rain and small animals, for changes in capacitance of a metal housing enclosing an outdoor portion of the illuminated doorbell touch pad system.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: July 4, 2017
    Assignee: Litex Industries, Limited
    Inventors: Donald J Ladanyi, Georgios V Lazaridis
  • Patent number: 9651058
    Abstract: A T-shaped fan blade arm attachment is disclosed for securing ceiling fan blades to a rotor of a ceiling fan motor. The fan blade arms have T-shaped ends with an elastomeric ring disposed adjacent the T-shapes ends. A mounting bracket has mounting holes with opposed slots for receiving the T-shaped ends of the fan blade arms. The opposed slots are preferably aligned at an angle to the horizontal when mounted to a ceiling fan motor. The mounting bracket has a flat surface exteriorly disposed on the mounting bracket adjacent to respective ones of the mounting holes. The mounting bracket has two cams with lock grooves disposed on interior surfaces of the mounting bracket, adjacent to respective ones of the mounting holes. The T-shaped ends insert into the mounting holes and are rotated to guide the T-shaped ends of the fan blade arms into the lock grooves.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: May 16, 2017
    Assignee: LITEX INDUSTRIES, LIMITED
    Inventors: John F. Mares, Donald J. Ladanyi, Zhi Jian He, Shou Zhi Li
  • Patent number: 9282665
    Abstract: An illuminated doorbell chime system is disclosed having a chime coil and LED lights. A chime control circuit has a power supply unit, an LED driver and a chime driver. The power supply unit is connected to the LED lights and the chime coil. The LED driver is connected to the LED lights. The chime driver is connected to the chime coil. A door switch selectively applies power to the power supply unit. The LED driver has a bipolar junction transistor, a base Zener diode, and a voltage divider. The chime driver has a Mosfet transistor, a gate resistor, a gate capacitor, and a gate Zener diode. The LED driver and the chime driver are interconnected, with a cathode of the gate Zener diode connected to the collector of the bipolar junction transistor, and a cathode of the base Zener diode connected to the drain of the Mosfet transistor.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: March 8, 2016
    Assignee: LITEX INDUSTRIES, LIMITED
    Inventors: Donald J Ladanyi, Georgios V Lazaridis
  • Patent number: 9156580
    Abstract: A closure apparatus that has a base having an interior surface, a lid having an interior surface, and a plurality of compartments within the apparatus. The lid is rotatably connected to the base, and a first compartment of the plurality of compartments has a wall secured to the interior surface of the lid and a wall of a second component is secured to the face such that, upon rotation of the lid, at least some of the compartments rise open from a relatively compressed state. The compartments removably straw an eating utensil which are easily displayed in and removed from their respective compartments.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 13, 2015
    Inventor: Donald J. Ladanyi
  • Publication number: 20090157568
    Abstract: A method for advertising an eating utensil by using or describing a flavorless taste characteristic of the utensil. Related advertising embodiments are provided.
    Type: Application
    Filed: September 25, 2006
    Publication date: June 18, 2009
    Inventor: Donald J. Ladanyi
  • Patent number: D569177
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 20, 2008
    Inventor: Donald J. Ladanyi