# US 11,898,133 B2 · Orbital incubator shakers

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- Number: US 11,898,133 B2
- Document ID: US11898133B2
- Status: Granted
- Kind: B2
- Application number: 17/167,915
- Filed: 2021-02-04
- Published: 2021-12-23
- Granted: 2024-02-13
- Earliest claimed: 2020-06-22
- Assignees: Shinetek Instrument Research Institute
- Applicants: Shinetek Instrument Research Institute
- Inventors: Gongrun Zhang; Gongze Zhang; Zhiyong Jia; Chengxiang Zhang
- Web page: https://patentgrep.com/patent/US11898133B2

## CPC

- C12M 27/16: {Vibrating; Shaking; Tilting}
- C12M 23/50: {Means for positioning or orientating the apparatus (C12M41/08 takes precedence)}
- C12M 37/04: {Seals}
- C12M 41/14: {Incubators; Climatic chambers (per se B01L1/00)}
- Y02A 40/25: Greenhouse technology, e.g. cooling systems therefor
- C12M: APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; {APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS}
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

It is described an orbital incubator shaker, which comprises an incubator housing (1) defining an incubation chamber (2), and an orbital shaker (3) configured to shake a shaking table (4). The orbital shaker (3) comprises a drive motor comprising a stator and a rotor (9), and an eccentric bearing mounted to the rotor (9). The orbital shaker (3) is fixed within the incubation chamber (2) or in a mobile version without fixing just being placed inside the incubation chamber (2). The orbital shaker (3) further comprises a bearing (16) configured to support the rotor (9) on a support structure. The rotor (9), the bearing (16) and the support structure are configured to seal the stator from the incubation chamber (2).

## Claims

### Claim 1

An orbital incubator shaker, comprising:
an incubator housing (1) defining an incubation chamber (2), and
an orbital shaker (3) configured to shake a shaking table (4), wherein the orbital shaker (3) comprises
a drive motor comprising a stator and a rotor (9),
an eccentric bearing mounted to the rotor (9),
a support structure configured to support the orbital shaker (3) on a base (15) of the incubator housing (1) such that the orbital shaker (3) extends to the inside of the incubation chamber (2), wherein the support structure is implemented as a fixture configured to fix the orbital shaker (3) to a base (15) of the incubator housing (1) or a stand configured to hold the orbital shaker (3) on the base (15) of the incubator housing (1), and
a bearing (16) configured to support the rotor (9) on the fixture or on the stand,
wherein the orbital shaker (3) is located within the incubation chamber (2), and the stator is sealed from the incubation chamber (2),
the rotor (9), the bearing (16), and the fixture or stand are configured to seal the stator from the incubation chamber (2).

### Claim 2 (depends on 1)

The orbital incubator shaker of claim 1, wherein the rotor (9) comprises a rotor plate (17), wherein the bearing (16) is a sealed bearing located between the rotor plate (17) and the fixture, or between the rotor plate (17) and the stand.

### Claim 3 (depends on 1)

The orbital incubator shaker of claim 1, wherein the orbital shaker (3) further comprises:
a dynamic seal (18), wherein the rotor (9), the dynamic seal (18), and the fixture or stand are configured to seal the stator (7, 8) from the incubation chamber (2).

### Claim 4 (depends on 3)

The orbital incubator shaker of claim 3, wherein the dynamic seal (18) comprises a lip seal mounted on the rotor (9).

### Claim 5 (depends on 1)

The orbital incubator shaker of claim 1, wherein the fixture comprises a bushing (13) and a shaft (14), wherein the bushing (13) is mounted to the incubator housing (1) and the bearing (16) is mounted to the shaft (14).

### Claim 6 (depends on 5)

The orbital incubator shaker of claim 5, further comprising an O-ring (19) configured to seal the bushing (13) to the incubator housing (1).

### Claim 7 (depends on 5)

The orbital incubator shaker of claim 5, wherein the fixture further comprises a passage (20) inside the shaft (14) extending through the base (15) of the incubator housing (1).

### Claim 8 (depends on 7)

The orbital incubator shaker of claim 7, wherein the passage (20) extends between the stator and an outside of the incubation chamber (2).

### Claim 9 (depends on 8)

The orbital incubator shaker of claim 8, further comprising:
a cooling channel within the passage (20), wherein the cooling channel is configured such that a cooling liquid may stream there through.

### Claim 10 (depends on 7)

The orbital incubator shaker of claim 7, further comprising:
a cooling channel within the passage (20), wherein the cooling channel is configured such that a cooling liquid may stream there through.

### Claim 11 (depends on 1)

The orbital incubator shaker of claim 1, wherein the drive motor is a rotary direct drive motor.

### Claim 12 (depends on 1)

The orbital incubator shaker of claim 1, further comprising:
an adjustable counterweight (21) mounted to the rotor (9).

### Claim 13 (depends on 12)

The orbital incubator shaker of claim 12, wherein at least one of the rotor (9), the counterweight (21) and an inside of the incubation chamber (2) is made of stainless steel.

### Claim 14 (depends on 1)

The orbital incubator shaker of claim 1, wherein the eccentric bearing comprises two sealed bearings (11) that are stacked above each other.
