Patents Assigned to Developmental Sciences, Inc.
  • Non-shocking pin for fluorescent type tubes
    Patent number: 4102558
    Abstract: An improved terminal pin for use with the bi-pin type end caps of fluorescent discharge tubes to reduce electrical shock hazards is disclosed. The pin comprises a body portion, a tip portion of reduced thickness relative to that of the body portion, and insulation covering the tip portion. The end cap utilizing the subject terminal pin is compatible with conventional lamp sockets.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: July 25, 1978
    Assignee: Developmental Sciences, Inc.
    Inventor: Howard Ellis Krachman
  • Fluorescent tube demonstration kit
    Patent number: D251094
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: February 13, 1979
    Assignee: Developmental Sciences, Inc.
    Inventors: Howard E. Krachman, Larry G. Lindsey