# US 2021/0278042 A1 · Leak containment systems and methods

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- Number: US 2021/0278042 A1
- Document ID: US20210278042A1
- Status: Published application
- Kind: A1
- Application number: 17/194,150
- Filed: 2021-03-05
- Published: 2021-09-09
- Earliest claimed: 2020-03-06
- Assignees: Oshkosh Corporation
- Applicants: Oshkosh Corporation
- Inventors: Bin Liang; Robert Abrams; Wencai Wang; Devin Rosencrance; Michael Stouffer
- Web page: https://patentgrep.com/patent/US20210278042A1

## CPC

- B66F 11/04: for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations ({Working platforms on fork-lift trucks B66F9/127; } vehicle aspects of service vehicles B60P3/14; platforms for cleaning windows A47L3/02; devices for rescuing persons from buildings A62B1/02; liftable or lowerable platforms for use on ladders E06C7/16; maintenance travellers for bridges E01D19/10; scaffolds on an extensible sub-structure E04G1/22)
- F16N 31/006: {Drip trays}
- B66F 11/042: {actuated by lazy-tongs mechanisms or articulated levers}
- E05B 15/0093: {Weight arrangements in locks; gravity activated lock parts (E05B65/5292, E05B77/06 take precedence)}
- E05B 65/46: for drawers
- E05C 3/044: {the bolt and handle being at the same side of the pivot (E05C3/045, E05C3/046 take precedence)}
- E05B 63/0052: {Locks mounted on the "frame" cooperating with means on the "wing" (E05B47/0046, E05B65/0829, E05B65/0847, E05B65/0882 take precedence)}
- B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00)
- F16N: LUBRICATING
- E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05C: BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS (latching means for sideboard or tailgate structures for vehicles B62D, {B62D33/02}; fastening devices for constructional or engineering elements E04, F16B; locks, fastening devices structurally or operatively combined or having significant cooperation with locks E05B; means for operating or controlling wing fasteners in conjunction with mechanisms for moving the wing E05F)

## Abstract

A leak containment system includes a mounting bracket, a tray, and a locking mechanism. The mounting bracket has a first rail, a second rail, and a panel extending between the first rails and the second rail. The panel is vertically offset from feet formed on the first rail, and a channel is defined by at least the first rail and an underside of the panel. The tray is removably received within the channel. The tray includes a bottom surface surrounded by perimeter walls that together define a fluid container. The perimeter walls include a front perimeter wall that extends upwardly above the other walls. The locking mechanism is coupled to the mounting bracket and is configured to selectively engage the front perimeter wall of the tray to restrict movement of the tray outward from the channel.

## Claims

### Claim 1

A leak containment system for a lift, comprising:
a mounting bracket having a first rail, a second rail, and a panel extending between the first rail and the second rail, wherein the panel is vertically offset from feet formed on the first rail, and wherein a channel is defined by at least the first rail and an underside of the panel; and
a tray removably received within the channel formed within the mounting bracket, the tray including a bottom surface surrounded by a plurality of perimeter walls that together define a fluid container, wherein the plurality of perimeter walls includes a front perimeter wall extending upwardly above the other walls in the plurality of perimeter walls; and
a locking mechanism coupled to the mounting bracket and configured to selectively engage the front perimeter wall of the tray to restrict movement of the tray outward from the channel.

### Claim 2 (depends on 1)

The leak containment system of claim 1, wherein the first rail is defined by a first foot, a second foot spaced apart from the first foot, and a bridge section extending between the first foot and the second foot, wherein the first foot, the second foot, and the bridge section together define an entrance of the channel.

### Claim 3 (depends on 2)

The leak containment system of claim 2, wherein the panel extends away from the bridge section of the first rail toward the second rail.

### Claim 4 (depends on 2)

The leak containment system of claim 2, wherein a locking recess is formed within a top of the front perimeter wall, and wherein at least a portion of the locking mechanism extends from the mounting bracket, through the locking recess, and outward beyond the front perimeter wall.

### Claim 5 (depends on 4)

The leak containment system of claim 4, wherein the locking mechanism includes a latch that is rotatably coupled to the mounting bracket, wherein the latch is configured to selectively block movement of the tray relative to the mounting bracket.

### Claim 6 (depends on 5)

The leak containment system of claim 5, wherein the latch is biased into a locking position, wherein the in the locking position, the latch extends downward from the mounting bracket, beyond the locking recess, to overlap at least a portion of the front perimeter wall of the tray so that movement of the tray between the latch and the mounting bracket is restricted.

### Claim 7 (depends on 6)

The leak containment system of claim 6, wherein the latch is biased into the locking position by gravity.

### Claim 8 (depends on 6)

The leak containment system of claim 6, wherein the latch is rotatably coupled to the mounting bracket using a bearing, wherein the latch and bearing are fastened to the bridge section of the first rail.

### Claim 9 (depends on 6)

The leak containment system of claim 6, wherein the latch is movable from the locking position to an unlocked position by rotating the latch relative to the mounting bracket by about 180 degrees.

### Claim 10 (depends on 1)

The leak containment system of claim 1, wherein the mounting bracket is formed by bending a singular metal panel into at least three perpendicular sections.

### Claim 11 (depends on 1)

The leak containment system of claim 1, wherein an absorbent pad is received within the fluid container of the tray.

### Claim 12 (depends on 11)

The leak containment system of claim 11, wherein the absorbent pad is formed from a reusable hydrophobic material.

### Claim 13

A leak containment system for a lift, comprising:
a tray assembly including a first pan and a second pan, the first pan and the second pan each defining fluid containers formed by a base wall and a lip extending around a perimeter of the base wall, wherein the first pan is coupled to and abuts the second pan along a common flange;
a first absorbent pad received within the first pan; and
a second absorbent pad received within the second pan;
wherein at least a portion of the lip of each of the first pan and the second pan varies in height around the perimeter of the base wall and includes a plurality of apertures to removably secure the tray assembly to the lift.

### Claim 14 (depends on 13)

The leak containment system of claim 13, wherein the lip of the first pan includes two mounting tabs extending upwardly away from the base wall on opposite sides of the first pan, wherein the two mounting tabs extend upwardly away from the base wall higher than the common flange.

### Claim 15 (depends on 13)

The leak containment system of claim 13, wherein the common flange is defined by a first flange formed in the lip of the first pan and a second flange formed in the lip of the second pan, the first flange and the second flange being fastened together to form the common flange.

### Claim 16 (depends on 15)

The leak containment system of claim 15, wherein the base wall of the first pan and the base wall of the second pan are approximately identical in size.

### Claim 17 (depends on 15)

The leak containment system of claim 15, wherein the tray assembly further comprises a first tray, the first tray being simultaneously mounted to the lip of the first pan and the lip of the second pan, wherein the first tray is defined by a rectangular shape that defines a volume smaller than the fluid container of the first pan.

### Claim 18 (depends on 17)

The leak containment system of claim 17, wherein the tray assembly further comprises a second tray, the second tray being simultaneously mounted to the lip of the first pan and the lip of the second pan, wherein the first tray and the second tray are positioned on opposite sides of the first pan and the second pan.

### Claim 19 (depends on 18)

The leak containment system of claim 18, further comprising a third absorbent pad received within the first tray and a fourth absorbent pad received within the second tray, wherein each of the first absorbent pad, the second absorbent pad, the third absorbent pad, and the fourth absorbent pad are formed of a hydrophobic material.

### Claim 20

A lift, comprising:
a chassis supporting a plurality of wheels;
a hydraulic pump supported by the chassis and configured to provide pressurized hydraulic fluid to at least an actuator positioned on the lift;
a hydraulic fluid reservoir supported by the chassis and configured to supply hydraulic fluid to the hydraulic pump;
a lift system supported by the chassis and configured to adjust a position of a platform relative to the chassis using the actuator; and
a leak containment system extending below the chassis, hydraulic pump, hydraulic fluid reservoir, and actuator, the leak containment system comprising:
a tray assembly including a first pan and a second pan, the first pan and the second pan each defining fluid containers formed by a base wall and a lip extending around a perimeter of the base wall, wherein the first pan is coupled to and abuts the second pan along a common flange;
wherein at least a portion of the lip of each of the first pan and the second pan varies in height around the perimeter of the base wall and includes a plurality of apertures that receive fasteners to removably secure the tray assembly below the chassis.
