Land vehicles – Wheeled – Extensible
Reexamination Certificate
1999-10-27
2001-04-10
Vanaman, Frank (Department: 3611)
Land vehicles
Wheeled
Extensible
C280S047350, C280S079300
Reexamination Certificate
active
06213494
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a serving cart used for moving and serving foods and drinks.
Serving carts have been used for moving and serving foods and drinks for a long time, especially in restaurants.
Known serving carts usually have a table portion and wheels fitted to the lowest parts of the table portion. They cannot be folded to a more compact configuration when not being used.
Because such serving carts cannot be folded into a more compact configuration, they occupy much space in storage and transportation. Consequently, transportation costs are relatively high. Additionally, there are usually many carts used in restaurants, and it becomes a problem for the restaurants to store the unfoldable carts when they are not being used.
SUMMARY OF THE INVENTION
It is a main object of the present invention to provide a serving cart which can be folded to a more compact configuration when not being used.
It is another object of the present invention to provide a serving cart which can stand upright on the ground after it is folded such that it can be stored easily.
The serving cart of the present invention comprises a main support member, two second support members, support boards, locating parts and wheels. The main support member has an inverted “U” shape and has transverse rods across it. The second support members each include an inverted “L” shaped portion and are each pivoted to the transverse rods at its upper end and at propping rods extending therefrom at portions below the upper end. The support boards are respectively arranged over the upper ends and propping rods of the second support members. The support boards each include two separate board sections pivoted to the main support member by means of the locating parts. The two side board sections of each support board can be pivoted upwards with the second support members being pivoted laterally inward in order to fold the cart to a not-in-use configuration.
The cart further has connecting rods arranged in parallel to legs of the main support member. The locating parts are pivoted to the connecting rods such that the intermediate and the lower support boards are also pivoted upwards when the upper support board is pivoted upwards in folding the cart.
Consequently, the required space for storing of the serving cart is minimized, as is the cost for transportation of such carts.
REFERENCES:
patent: 2740533 (1956-04-01), Mondineu
patent: 2938632 (1960-05-01), Mondineu
patent: 3297276 (1967-01-01), Skufca
patent: 3436092 (1969-04-01), Werner
patent: 4793497 (1988-12-01), Hall et al.
patent: 5131547 (1992-07-01), Goldberg
patent: 5730452 (1998-03-01), Fields
patent: 5806864 (1998-09-01), Zielinski et al.
patent: 5816419 (1998-10-01), Lamson
patent: 652953 (1962-11-01), None
patent: 442037 (1968-01-01), None
patent: 352884 (1931-07-01), None
patent: 1165119 (1969-09-01), None
patent: 1342895 (1974-01-01), None
Rosenberg , Klein & Lee
Vanaman Frank
LandOfFree
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