Amusement devices: toys – Aerodynamically supported or retarded – Spinning disc
Reexamination Certificate
2001-07-25
2003-03-04
Banks, Derris H. (Department: 3712)
Amusement devices: toys
Aerodynamically supported or retarded
Spinning disc
C446S046000, C446S034000, C473S588000
Reexamination Certificate
active
06527608
ABSTRACT:
This invention relates to a throwing disc with changeable aerodynamic characteristics.
Various types of throwing discs have heretofore been provided, often commonly designated as “Frisbees”. Certain of these devices have been provided with holes allowing air to pass through. These holes are principally an ornamental feature. Even though such holes may affect the aerodynamic characteristics of the disc, such a disc has only a single aerodynamic characteristic. There also are discs which have been provided which have greater or lesser lifting characteristics and discs which are high performance with little lift. There is, however, a need for a single disc in which many of these different types of characteristics can be obtained.
In general, it is an object of the present invention to provide a throwing disc with changeable aerodynamic characteristics which makes it possible to change the disc for different performances ranging between high and low performance and for different lifts.
Another object of the invention is to provide a throwing disc of the above character in which changes in performance and lift can be readily made.
Another object of the invention is to provide a throwing disc of the above character which changes in performance and lift can be made with ease.
Another object of the invention is to provide a throwing disc of the above character which can be economically manufactured.
REFERENCES:
patent: 2425966 (1947-08-01), Tjomsland
patent: 4080753 (1978-03-01), Hiner et al.
patent: 4176843 (1979-12-01), DeWitt, Jr.
patent: 4207702 (1980-06-01), Boatman et al.
patent: 4351129 (1982-09-01), Kerkenbush et al.
patent: 4466212 (1984-08-01), Lehman
patent: 4503635 (1985-03-01), Harrington
patent: 4940441 (1990-07-01), Novinsky
patent: 5288256 (1994-02-01), Lee et al.
patent: 5393256 (1995-02-01), Mitchell et al.
patent: 5480334 (1996-01-01), Wilson et al.
patent: 5674102 (1997-10-01), Lin
patent: 5882239 (1999-03-01), Trichak
Banks Derris H.
Dorsey & Whitney LLP
Miller Bena B.
LandOfFree
Throwing disc with changeable aerodynamic characteristics does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Throwing disc with changeable aerodynamic characteristics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Throwing disc with changeable aerodynamic characteristics will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3045945