Heel-shaped ergonomic writing instrument

  • US 5,549,405 A
  • Filed: 03/17/1995
  • Issued: 08/27/1996
  • Est. Priority Date: 03/17/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. An ergonomic writing instrument, comprising:

  • a) a hollow substantially elongated body having a longitudinal axis, an open substantially D-shaped bottom, an interior surface with an intermediate point, an open substantially D-shaped top having a perimeter and being disposed above, and larger than, said open substantially D-shaped bottom of said hollow substantially elongated body, said hollow substantially elongated body flaring smoothly upwardly and outwardly from said open substantially D-shaped bottom of said hollow substantially elongated body to said open substantially D-shaped top of said hollow substantially elongated body so as to form a substantially straight side and a substantially curved side therebetween, so that said substantially curved side of said hollow substantially elongated body can be comfortably cradled in a natural arch between a thumb and an index finger of a user in a relaxed position and said hollow substantially elongated body will not roll off of a writing surface and will not be obscured on a cluttered work surface;

    b) a hollow cylindrically-shaped elongated tube disposed within said hollow substantially elongated body and extending along said longitudinal axis of said hollow substantially elongated body from said open substantially D-shaped bottom of said hollow substantially elongated body to said open substantially D-shaped top of said hollow substantially elongated body, said hollow cylindrically-shaped elongated tube contacting said interior surface of said hollow substantially elongated body from said intermediate point of said interior surface of said hollow substantially elongated body to said open substantially D-shaped bottom of said hollow substantially elongated body so as to form a conveniently accessible storage space between said intermediate point of said interior surface of said hollow substantially elongated body and said open substantially D-shaped top of said hollow substantially elongated body that is accessible from said open substantially D-shaped top of said hollow substantially elongated body, so that small common office items can be stored in said conveniently accessible storage space;

    c) a substantially D-shaped cover having a perimeter and being movably mounted to, and closing, said open substantially D-shaped top of said hollow substantially elongated body, so that the small common office items stored in said conveniently accessible storage space are maintained therein, said substantially D-shaped cover having a substantially centrally-disposed removable portion with a lower surface perimeter, said lower surface perimeter of said substantially centrally-disposed removable portion of said substantially D-shaped cover being a V-shaped groove, so that said substantially centrally-disposed removable portion of said substantially D-shaped cover can be readily removed from said substantially D-shaped cover and when said substantially centrally-disposed removable portion of said substantially D-shaped cover is removed from said substantially D-shaped cover an opening with a chamfered perimeter is formed in said substantially D-shaped cover; and

    d) a solid state panel having a perimeter with outwardly extending protrusions cooperating with said chamfered perimeter of said opening of said substantially D-shaped cover when said substantially centrally-disposed removable portion of said substantially D-shaped cover is removed from said substantially D-shaped cover, so that said solid state panel can be conveniently installed in said substantially D-shaped cover.

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