Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Handle – handle component – or handle adjunct
Reexamination Certificate
2000-06-22
2001-11-20
Mah, Chuck Y. (Department: 3626)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Handle, handle component, or handle adjunct
C016S436000, C016S421000, C016S900000, C016S429000, C280S655000, C280S047371, C280S087041, C280S087050
Reexamination Certificate
active
06317923
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a handle middle tube and a vertical tube-combining device for skate-scooters, particularly to one saving time and work and cost.
A conventional skate-scooter has a handle middle tube
10
and a vertical tube
20
combined with the middle tube
10
, as shown in FIG.
1
. The middle tube
10
horizontally located has its intermediate bottom contacting an upper end of the vertical tube
20
, and then welded together with a spot welding machine, so it takes time and high cost, and in addition, the welded spots look awkward as well. In treating their surfaces, they are impossible to take off to treat separately.
The both cannot be treated with their surfaces until they are welded together, limited in their manufacturing process. Another combining device for the handle middle tube and the vertical tube for a skate-scooter is to bore a hole in both the tubes and screwed tightly together with a bolt. Then the holes have to be bored in advance, and then the bolt protrudes out of the tube walls, also looking awkward.
SUMMARY OF THE INVENTION
The objective of the invention is to offer a handle middle tube and a vertical tube combining device for skate-scooters, easy and quick to assemble and disassemble, and saving cost as well.
REFERENCES:
patent: 5287869 (1994-02-01), Wu
patent: 5515744 (1996-05-01), Liao
patent: 5940933 (1999-08-01), Chang
patent: 6173976 (2001-01-01), Lee
patent: 6202282 (2001-03-01), Holdsworth
patent: 6213672 (2001-04-01), Varga
patent: 6227752 (2001-05-01), Friedrich
Mah Chuck Y.
Pro-Techtor Inter-national Services
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