# US 11,305,933 B2 · Fluid discharge system and squeezer thereof

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- Number: US 11,305,933 B2
- Document ID: US11305933B2
- Status: Granted
- Kind: B2
- Application number: 16/636,294
- Filed: 2018-07-27
- Published: 2021-06-17
- Granted: 2022-04-19
- Earliest claimed: 2017-08-03
- Assignees: Shanghai Hongyan Returnable Transit Packagings Co., Ltd.
- Applicants: Shanghai Hongyan Returnable Transit Packagings Co., Ltd.
- Inventors: Zhengwei Fang
- Web page: https://patentgrep.com/patent/US11305933B2

## CPC

- B65D 88/54: characterised by means facilitating filling or emptying
- B65D 77/065: {Spouts, pouring necks or discharging tubes fixed to or integral with the flexible container}
- B65D 90/00: Component parts, details or accessories for large containers (B65D88/34 - B65D88/78 take precedence)
- B67D 7/0216: {by squeezing collapsible or flexible storage containers (B67D7/0255 takes precedence; for dispensing beverages on draught B67D1/0001)}
- B65D 2590/046: Bladders
- B67D 2210/0016: Adapted for dispensing high viscosity products
- Y02W 30/62: Plastics recycling; Rubber recycling
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B67D: DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR (cleaning pipes or tubes or systems of pipes or tubes B08B9/02; emptying or filling of bottles, jars, cans, casks, barrels, or similar containers, not otherwise provided for B67C; water supply E03; pipe systems F17D; domestic hot-water supply systems F24D; measuring volume, volume flow, mass flow or liquid level, metering by volume G01F; coin-freed or like apparatus G07F)
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

A fluid discharge system and the squeezer, where the squeezer includes a pair of rollers, a driving device, and a mounting bracket. The pair of rolling shafts is rotatably mounted to the mounting bracket, and each rolling shaft has a mounting parts at both ends and a squeezing segment between the mounting parts. The squeezing segment includes a supporting shaft and an elastic body provided around the supporting shaft. A pair of rolling shafts can operatively clamp the object to be clamped between the squeezing segments and can rotate oppositely through a driving device to apply a squeezing force to the clamped object. The driving device includes a motor, wherein the motor is mounted around the rolling shaft. The fluid discharge system and the squeezer are a zero-residue discharge system without liner suspension, have a long effective squeezing length, and are easy to operate.

## Claims

### Claim 1

A squeezer, comprising:
a pair of rolling shafts, a driving device and a mounting bracket,
wherein the pair of rolling shafts being rotatably mounted to the mounting bracket, each rolling shaft having a mounting part at each end and a squeezing segment located between the mounting parts;
the squeezing segment including a supporting shaft and an elastic body surrounding the supporting shaft;
the pair of rollers being capable of operatively clamping an object to be clamped between the squeezing segments and oppositely being rotated by the driving device to apply a squeezing force to the object clamped, and
the driving device including a motor, wherein the motor being mounted around the rolling shaft,
wherein the mounting bracket comprises two first bases, a second base and a locking mechanism, wherein one end of the rolling shaft is rotatably mounted to the first base, the other end is rotatably mounted to the second base, and the locking mechanism is used to operatively lock or release the pair of rolling shafts.

### Claim 2 (depends on 1)

The squeezer according to claim 1, wherein the motor is arranged such that at least a part of the motor's projection in a direction perpendicular to the axis of the rolling shaft overlaps with the projection of the rolling shaft in a direction perpendicular to the axis of the rolling shaft.

### Claim 3 (depends on 1)

The squeezer according to claim 1, wherein the motor is located below, above, or a side of the rolling shaft.

### Claim 4 (depends on 1)

The squeezer according to claim 1, wherein the driving device is arranged at the second base.

### Claim 5 (depends on 4)

The squeezer according to claim 4, wherein the motor extends from the second base toward the middle portion of the rolling shaft.

### Claim 6 (depends on 4)

The squeezer according to claim 4, wherein one side of the second base is provided with an upper recess and a lower recess below the upper recess, wherein one end of the motor is mounted in the upper recess, and the rolling shaft is installed to the lower recess.

### Claim 7 (depends on 6)

The squeezer according to claim 6, wherein the driving device further includes a reducer, wherein the reducer is mounted to the side of the second base which is opposite to the side where the upper recess and the lower recess is provided, and a driving slot of the reducer is connected to the rolling shaft.

### Claim 8 (depends on 1)

The squeezer according to claim 1, wherein the driving device further includes a reducer, wherein the motor is arranged above the reducer, and the output shaft of the motor is connected with the reducer and extends upward from the reducer.

### Claim 9 (depends on 8)

The squeezer according to claim 8, wherein one of the pair of rolling shafts is received in the reducer, and the other is received in the second base.

### Claim 10 (depends on 8)

The squeezer according to claim 8, wherein the motor has a cover arranged above the reducer and extending upward from the reducer.

### Claim 11 (depends on 1)

The squeezer according to claim 1, wherein the mounting bracket further comprises two supporting rods, wherein two ends of each of the two supporting rods are connected to the first base and the second base respectively.

### Claim 12 (depends on 1)

The squeezer according to claim 1, wherein the squeezer further comprises a protective device, wherein the protective device is provided to surround at least the outer side of the rolling shaft so that the outer side of the rolling shaft is separated from the object clamped during squeezing of the squeezer.

### Claim 13 (depends on 12)

The squeezer according to claim 12, wherein the mounting bracket further comprises a supporting rod, wherein two ends of the supporting rod are connected to the first base and the second base respectively, and the cross section of the supporting rod is U-shaped or C-shaped.

### Claim 14 (depends on 1)

A fluid discharge system, comprising a container and an liner bag, wherein the liner bag being provided with a discharge port and installed in the container, characterized in that, the fluid discharge system further comprises the squeezer according to claim 1, wherein the pair of rolling shafts are able to operatively clamp the liner bag between the squeezing segments and are able to oppositely rotated by the driving device to apply a squeeze force to the liner bag.

### Claim 15 (depends on 14)

The fluid discharge system according to claim 14, wherein the motor is arranged such that at least a part of the motor's projection in a direction perpendicular to the axis of the rolling shaft overlaps with the projection of the rolling shaft in a direction perpendicular to the axis of the rolling shaft.

### Claim 16 (depends on 15)

The fluid discharge system according to claim 15, wherein the motor is located below, above, or a side of the rolling shaft.

### Claim 17 (depends on 14)

The fluid discharge system according to claim 14, the driving device further includes a reducer, wherein the motor is arranged above the reducer, and the output shaft of the motor is connected with the reducer and extends upward from the reducer.

### Claim 18 (depends on 14)

The fluid discharge system according to claim 14, wherein the mounting bracket further comprises two supporting rods, wherein two ends of each of the two supporting rods are connected to the first base and the second base respectively.

### Claim 19 (depends on 14)

The fluid discharge system according to claim 14, wherein the squeezer further comprises a protective device, wherein the protective device is provided to surround at least the outer side of the rolling shaft so that the outer side of the rolling shaft is separated from the object clamped during squeezing of the squeezer.

### Claim 20 (depends on 14)

The fluid discharge system according to claim 14, wherein the mounting bracket further comprises a supporting rod, wherein two ends of the supporting rod are connected to the first base and the second base respectively, and the cross section of the supporting rod is U-shaped or C-shaped.