Back to results
US 4,211,024 AGranted
Magic drinking straw
OwnerJoe H. Nickellinventor
Life of this patent
Estimating the term…
Abstract
A drinking straw with a hollow box connected to the straw such that a fluid can be drawn through the box and one face of the box can be seen by the user. The viewed face has transparent indicia surrounded by solid black or dark colored material corresponding to the material of the rear plate of the box, hence, the indicia is only visible when a colored fluid such as milk is drawn through the straw and the box.
Claims3
A magic drinking straw comprising:
- two open-ended hollow tubes, each having first and second ends;
- a hollow enclosed connecting member having a rear wall of black or other dark-color material, and opposed thereto a front wall of transparent material, said connecting member having apertures in opposite ends, the top said aperture receiving the second end of the first said tube, and the bottom said aperture receiving the first end of the second said tube;
- and
- a pictorial pattern borne upon said transparent front wall of said connecting member, said pattern being rendered in black or other dark-color for its negative areas, and the positive areas of said pictorial pattern remaining transparent.
1 more element
Dependencies are inferred from the claim text.