Patents Examined by Sterlon R. Mason
  • Patent number: 5442380
    Abstract: A marking and counting implement comprises a tubular housing for holding a marking implement, such as a highlighter. One end of the tubular housing has an aperture through which the marking end of the marking implement extends. The other end of the housing is closed and has a switch which is activated by the marking implement when a certain activating pressure is applied to the switch by the marking implement. Typically, a resilient means, such as a spring, keeps the marking implement from activating the switch until the activating pressure is applied to the switch by pressing the marking end of the marking implement against a surface. The switch is connected to a counter whereby, when sufficient pressure is exerted on the switch by the marking implement to activate the switch, a count is recorded. Thus, the marking and counting implement can be used for both marking and counting.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: August 15, 1995
    Inventor: Erik J. McCormick