Dart

• US 4,030,761 A
• Filed: 09/08/1976
• Issued: 06/21/1977
• Est. Priority Date: 09/08/1976
• Status: Expired due to Term

• Current Assignee: Hans Daller
• Original Assignee: Hans Daller
• Inventors: Daller, Hans
• Primary Examiner(s): Shapiro, Paul E.
• Application Number:
  US05/721,336
• Time in Patent Office: 286 Days
• Field of Search: 273/106.5, 273/106 F, 46/52, 46/74-81, 46/174, 46/178, 46/180, 46/181
• US Class Current: 473/572
• CPC Class Codes: F42B 12/362 Arrows or darts F42B12/38 takes precedence, having means for implantation, e.g. hypodermic projectiles F42B12/54; arrows or darts in general F42B6/00
• CPC Class Codes: F42B 6/003 Darts

Abstract

This disclosure pertains to a dart, having a suction cup at one end thereof and a stabilizing fin additionally serving as a handle at the other end. A cavity, affixed to the proximal end of the suction cup contains a ball and communicates to a hollow flexible tubing, utilized as a shaft, interconnecting the wing end and the suction cup end of the apparatus. A plurality of holes pass through the walls at the proximal end of the cavity and communicate air, by way of the flexible tubing, to a whistling apparatus, disposed at the proximal end of the tubing. The ball creates a tamping force which insures a better grasp between the suction cup and the target surface against which it is propelled. When the ball is disposed within the cavity at a location adjacent the proximal end thereof, the holes are sealed effectively silencing the whistling apparatus.

Claims

1. A dart comprising a suction cup, a protrusion fixedly secured to the convex exterior surface of said suction cup, said protrusion including a cavity and an open mouth portion, said open mouth portion disposed at the free end of said protrusion and communicating to said cavity, a spherical bulge-like excursion in the walls of said protrusion, said excursion extending radially outwardly from said cavity, a plurality of holes being disposed passing through said walls, said plurality of holes being disposed in spaced apart relationship about the circumference of said excursion intermediate the widest portion thereof and said open mouth portion of said protrusion, means to selectively vent said cavity to the atmosphere when said suction cup is disposed in a lower position than said open mouth portion, a whistle sound generating apparatus, means to fluidly communicate said open mouth portion to said whistle sound generating apparatus, a plurality of stabilizing fins affixed to the proximal end of said dart.

2. The dart as claimed in claim 1 further comprising a tail assembly, said tail assembly including said plurality of stabilizing fins and a handle-like opening centrally disposed intermediate said plurality of stabilizing fins, an air venting opening communicating air leaving said whistle sound generating apparatus to said atmosphere.

3. The dart as claimed in claim 2 wherein said communicating means comprises a flexible rubber-like tubing, one end of said flexible rubber-like tubing fixedly secured to said open mouth portion, a housing, said whistle sound generating apparatus contained within said housing, the other end of said flexible rubber-like tubing fluidly communicating to the interior of said housing and to the input port of said whistle sound generating apparatus.

4. The dart as claimed in claim 3 wherein said plurality of stabilizing fins comprise a pair of fins, said pair of fins being disposed lying in a plane, said flexible rubber-like tubing having a longitudinal axis, said longitudinal axis lying in said plane, said pair of fins extending radially outwardly from said longitudinal axis, said handle-like opening being disposed in said plane, said longitudinal axis passing through the center of said handle-like opening.

5. The dart as claimed in claim 1 wherein said venting means comprises a ball, said ball being disposed within said cavity at the location of said excursion, said ball being selectively disposed sealing said plurality of holes.

6. The dart as claimed in claim 1 wherein said suction cup and said protrusion is comprised of a flexible rubber-like material.