Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article
Reexamination Certificate
1999-12-21
2002-01-29
Swann, J. J. (Department: 3611)
Land vehicles
Wheeled
Tiltable vehicles, stabilized by attendant or article
Reexamination Certificate
active
06341789
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to hand carts or dollies and more particularly to a two-wheeled handcart, which is specially suited for transporting scuba air tanks and gear on two surfaces of one and the same frame.
2. Description of the Related Art
A conventional hand cart or dolly comprises a generally upright frame with a base plate at the bottom end of the cart or dolly for carrying a load as described in the following patents:
U.S. PAT. NO.
INVENTOR(S)/ASSIGNEE
5,803,471
DeMars
5,738,480
Butzen
4,241,930
Bell
Transporting more than one type of cargo, like a gear bag and air tank, in a single cart or dolly is not an practical option with existing hand carts, like those provided by the following patents:
U.S. PAT. NO.
INVENTOR(S)/ASSIGNEE
5,704,624
Davis
D374,533
Read
5,492,346
Stadler
5,393,080
Ross
This creates a problem for scuba divers in particular, where they have to resort to using conventional carts or dollies to carry their gear usually a substantial distance in multiple trips.
It is therefore desirable to have a handcart that can be loaded easily with all required scuba gear and towed in a single trip.
Loading the scuba equipment onto existing carts such as the one described in U.S. Pat. No. 5,704,624, allowing multiple loads, requires that the carrier be reconfigured and/or partially disassembled to access the loads.
It is therefore desirable to have a handcart that allows access to either of both loads without reconfiguring and/or partially disassembling the cart.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a handcart that optimizes its frame surfaces to retain and transport scuba gear in an easy, convenient and efficient manner.
Another objective of the present invention is to provide a handcart that can maintain its upright position without operator intervention regardless of the loading arrangement.
Another objective of the present invention is to provide a handcart with retaining means that adjust and conform to the shape and contour of the loads.
The handcart of the present invention includes a generally upright frame having opposed functional surfaces, one of which provides the retaining means for the air tank, while the other allows for the loading of the gear bag, with a base plate and wheels at the bottom for stability.
REFERENCES:
patent: 593226 (1897-11-01), Macphail
patent: 690449 (1902-01-01), Martin
patent: 5106112 (1992-04-01), Sargent
patent: 5131670 (1992-07-01), Clements et al.
patent: 5203815 (1993-04-01), Miller
patent: 5393080 (1995-02-01), Ross
patent: 5419569 (1995-05-01), Walla
patent: 5433230 (1995-07-01), Miller
patent: 5492346 (1996-02-01), Stadler et al.
patent: D374533 (1996-10-01), Read
patent: 5704624 (1998-01-01), Davis
patent: 6047983 (2000-04-01), Day, lll
patent: 6082757 (2000-07-01), Lin
patent: 6123344 (2000-09-01), Clegg
Checa Frank
Moorrees Michael
McClellan James S.
Stetina Brunda Garred & Brucker
Swann J. J.
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