# US 2017/0282950 A1 · Collapsible Agile Refreshment Trolley (CART)

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- Number: US 2017/0282950 A1
- Document ID: US20170282950A1
- Status: Published application
- Kind: A1
- Application number: 15/479,274
- Filed: 2017-04-04
- Published: 2017-10-05
- Earliest claimed: 2016-04-04
- Inventors: Ravish Patwardhan
- Web page: https://patentgrep.com/patent/US20170282950A1

## CPC

- B62B 3/02: involving parts being adjustable, collapsible, attachable, detachable or convertible
- B62B 3/005: {Details of storage means, e.g. drawers, bins or racks}
- B62B 2202/67: Service trolleys, e.g. in aircraft
- B62B 2206/02: adjustable in length or width
- B62B: HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES (characterised by animal propulsion B62C; propulsion of sledges by driver or engine B62M)

## Abstract

The present invention relates generally to a collapsible agile refreshment trolley (CART) that is able to expand and collapse either manually or automatically, to allow passageway of customers in the aisles (e.g. in an airplane, train, ship, bus, or other instance where a narrow region is present and should be circumvented, such as a passenger traveling to a restroom). The CART should be able to be reduced and expanded to allow passageway for emergency (e.g. attending to person having a medical condition after service has begun on the airplane), urgency (e.g. for a passenger in the front of the coach section to go the restroom past the service cart after the service has already begun), or other reasons (e.g. two carts, a drink cart and a food cart, need to pass each other in a narrow passageway, etc.).

## Claims

### Claim 1

A service cart for a vehicle comprising:
a storage portion which is configured to occupy approximately half of the width of an aisle of a vehicle, said storage portion having at least compartment;
a base portion supporting said storage portion, said base portion having wheels adapted to move said service cart in a vehicle;
a stabilizing extension configured to reversibly extend and contract into said base portion, said stabilizing extension configured to prevent tipping over of said service cart and providing means for permitting a person to step past said service cart when said stabilizing extension is extended.

### Claim 2 (depends on 1)

The service cart of claim 1, wherein said at least one compartment comprises a drawer.

### Claim 3 (depends on 1)

The service cart of claim 1, wherein said at least one compartment comprises a swinging door compartment.

### Claim 4 (depends on 1)

The service cart of claim 1, wherein said at least one compartment comprises an interlocking set of storage features for reversibly expanding the width of said service cart.

### Claim 5 (depends on 1)

The service cart of claim 1, wherein said means for permitting a person to step past said service cart when said stabilizing extension is extended comprises stepping zones where a person may step onto the ground.

### Claim 6 (depends on 1)

The service cart of claim 1, wherein said means for permitting a person to step past said service cart when said stabilizing extension is extended comprises a stepping platform for a person to stand or step on.

### Claim 7 (depends on 1)

The service cart of claim 1, further comprising a brake mechanism for arresting motion of said wheels.

### Claim 8 (depends on 1)

The service cart of claim 1, wherein said vehicle is selected from the group consisting of a commercial airliner, a passenger train and a passenger bus.