Mobile galley cart with heating, cooling and braking functionality

Patent metadata

Field	Value
Publication number	US-10377493-B2
Application number	US-201816166677-A
Country	US
Kind code	B2
Filing date	Oct 22, 2018
Priority date	Aug 30, 2013
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

A mobile galley cart including a wheeled insulated housing having a door configured to open to access to the interior of the housing, a thermoelectric chiller mounted near the bottom of the cart, cold air ducting in fluid communication with the thermoelectric chiller and opening to the interior of the housing, and warm air ducting including a warm air exhaust arranged to exhaust warm air from the mobile galley cart. A mobile galley cart system including a cart configured to dock at a separate service wall to provide service connections therebetween.

First claim

What is claimed is:

1. A mobile galley cart, comprising:
a wheeled insulated housing formed from opposing sidewalls, opposing end walls, a top and a bottom, with one of the opposing end walls being a door configured to open to access an interior of the housing;
a thermoelectric chiller mounted near the bottom of the cart;
cold air ducting in at least one of the sidewalls, end walls and bottom in fluid communication with the thermoelectric chiller, the cold air ducting opening to the interior of the mobile galley cart through a plurality of openings through at least one of the sidewalls and end walls;
warm air ducting including a warm air exhaust arranged to exhaust warm air from the mobile galley cart; and
wheel brakes actuated by handles located at both end walls of the mobile galley cart, each of the handles operating independently of the other to allow the wheel brakes to be disengaged from either end of the cart,
wherein the handles are interconnected to the wheel brakes through cabling, and wherein the handles are rotated downward to pull the cabling to disengage the wheel brakes, and wherein releasing the handles causes the handles to rotate upward to release tension on the cabling and engage the wheel brakes.

2. The mobile galley cart of claim 1 , wherein the warm air ducting is arranged below the thermoelectric chiller.

3. The mobile galley cart of claim 1 , further comprising induction coils arranged to form platens subdividing the interior of the galley cart, the induction coils for heating ferric portions of meal trays stored on top of the platens within the interior of the mobile galley cart.

4. The mobile galley cart of claim 3 , further comprising a temperature feedback loop or microchip temperature sensor and controller for powering the induction coils.

5. The mobile galley cart of claim 3 , wherein the platens are supported by the opposing sidewalls and subdivide the interior of the galley cart into a plurality of meal tray compartments.

6. The mobile galley cart of claim 1 , wherein the door is hinged to the insulated housing through 270 degrees by way of double throw rotating block hinges embedded into an edge of one of the opposing side walls, the door pivoting through 180 degrees with respect to a rotating block that in turn pivots through 90 degrees with respect to the one of the opposing side walls.

7. The mobile galley cart of claim 1 , wherein at least one of the sidewalls, end walls, top and bottom is constructed from foam and honeycomb phenolic panels and vacuum insulation panels.

8. The mobile galley cart of claim 1 , wherein the plurality of openings through at least one of the sidewalls and end walls increase in diameter in the direction from the bottom to the top of the mobile galley cart.

9. The mobile galley cart of claim 1 , further comprising an upper bar that forms part of a wheel brake release handle and a lower bar positioned near the bottom of the mobile galley cart, the upper bar arranged to engage a spring loaded pawl of a latching mechanism located on a service wall to latch the mobile galley cart to the service wall between uses, the service wall being separate from the mobile galley cart and in a fixed location.

10. The mobile galley cart of claim 1 , further comprising receivers for receiving service connections from a service wall, the service connections including one or more of electrical, data, water, air circulation, air extraction, and waste water services, the service wall being separate from the mobile galley cart and in a fixed location.

11. A mobile galley cart, comprising:
a wheeled insulated housing formed from opposing sidewalls, opposing end walls, a top and a bottom, with one of the opposing end walls being a door configured to open to access an interior of the housing;
a thermoelectric chiller mounted near the bottom of the cart;
cold air ducting in at least one of the sidewalls, end walls and bottom in fluid communication with the thermoelectric chiller, the cold air ducting opening to the interior of the mobile galley cart through a plurality of openings through at least one of the sidewalls and end walls; and
warm air ducting including a warm air exhaust arranged to exhaust warm air from the mobile galley car,
wherein the plurality of openings through at least one of the sidewalls and end walls increase in diameter in the direction from the bottom to the top of the mobile galley cart.

12. A mobile galley cart, comprising:
a wheeled insulated housing formed from opposing sidewalls, opposing end walls, a top and a bottom, with one of the opposing end walls being a door configured to open to access an interior of the housing;
a thermoelectric chiller mounted near the bottom of the cart;
cold air ducting in at least one of the sidewalls, end walls and bottom in fluid communication with the thermoelectric chiller, the cold air ducting opening to the interior of the mobile galley cart through a plurality of openings through at least one of the sidewalls and end walls;
warm air ducting including a warm air exhaust arranged to exhaust warm air from the mobile galley cart; and
an upper bar that forms part of a wheel brake release handle and a lower bar positioned near the bottom of the mobile galley cart, the upper bar arranged to engage a spring loaded pawl of a latching mechanism located on a service wall to latch the mobile galley cart to the service wall between uses, the service wall being separate from the mobile galley cart and in a fixed location.

Assignees

• Rockwell Collins Inc

Inventors

• Burd Peter John Leslie

Classifications

• F25B21/04

  reversible · CPC title

• B62B2202/67

  Service trolleys, e.g. in aircraft · CPC title

• B64D11/0007 Primary

  Devices specially adapted for food or beverage distribution services · CPC title

• F25B21/02

  using Peltier effect; using Nernst-Ettinghausen effect · CPC title

• A47J39/006

  for either storing and preparing or for preparing food on serving trays, e.g. heating, thawing, preserving · CPC title