# US 2010/0167900 A1 · Vertical plate centrifuge

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2010/0167900 A1
- Document ID: US20100167900A1
- Status: Published application
- Kind: A1
- Application number: 12/317,880
- Filed: 2008-12-30
- Published: 2010-07-01
- Earliest claimed: 2008-12-30
- Assignees: Labnet International, Inc.
- Inventors: Michael D. Rosenblum; H. Gerald Young
- Web page: https://patentgrep.com/patent/US20100167900A1

## CPC

- B04B 5/0414: {comprising test tubes}
- B04B 7/02: Casings; Lids (shock absorbers, vibration dampers F16F)
- B04B 7/06: Safety devices {; Regulating}
- B04B 9/08: Arrangement or disposition of transmission gearing {(for solid bowl screw centrifuges B04B1/2016); Couplings; Brakes}
- B04B: CENTRIFUGES (high-speed drum mills B02C19/11; domestic spin driers D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant subclasses for these procedures, e.g. G01N)

## Abstract

A Microtiter plate centrifuge is disclosed. The centrifuge includes a motor assembly a shaft, extending vertically from the motor assembly, a rotor assembly, attached to the shaft, the rotor assembly including at least two slots, symmetrically positioned, with respect to the shaft and a channel corresponding to each of said slots. The channels extending from the rotor assembly are suitable for holding Microtiter plates in a vertical position. Also included is a bottom plate engaging a brake pad, which when engaged creates sufficient friction to halt rotation of the rotor assembly.

## Claims

### Claim 1

A plate holding centrifuge comprising:
a motor assembly;
a shaft, extending vertically from said motor assembly;
a rotor assembly, attached to said shaft, said rotor assembly including at least two slots, symmetrically positioned, with respect to said shaft; and
a channel corresponding to each of said slots.

### Claim 2 (depends on 1)

The centrifuge of claim 1, further comprising:
a bottom plate, wherein at least said shaft extends through a center hole in said bottom plate.

### Claim 3 (depends on 2)

The centrifuge of claim 2, wherein each of said channels is attached to said bottom plate.

### Claim 4 (depends on 1)

The centrifuge of claim 1, further comprising:
a first switch for applying a voltage to said motor assembly.

### Claim 5 (depends on 4)

The centrifuge of claim 4, further comprising:
a housing including a lid covering an opening in said housing; and
a second switch, associated with a latch mechanism in said housing, said second switch enabling said voltage to be applied to said first switch.

### Claim 6 (depends on 2)

The centrifuge of claim 2, further comprising:
a brake pad normally engaging said bottom plate.

### Claim 7 (depends on 6)

The centrifuge of claim 6, wherein said brake pad is spring mounted.

### Claim 8

A vertical engaging Mircotiter plate centrifuge comprising:
a housing including an opening,
a lid attached to said housing, covering said opening when in a closed position;
a centrifuge assembly within said housing comprising:
a motor assembly attached to and vertically positioned with respect to a bottom of said housing:
a shaft extending from said motor assembly:
a rotor attached to said shaft, said rotor including at least one set of slots symmetrically positioned on said rotor with respect to said shaft attachment;
a channel extending from each of said at least one set of slots; and
a bottom plate including a center hole through which at least said shaft, wherein said bottom plate and said rotor are rotable with respect to said motor assembly;
a brake pad assembly normally engaging said bottom plate; and
a first switch for applying a voltage to said motor assembly and releasing said brake pad.

### Claim 9 (depends on 8)

The centrifuge of claim 8, wherein said channels are attached to said bottom plate.

### Claim 10 (depends on 8)

The centrifuge of claim 8, wherein said bottom plate is attached to said shaft.

### Claim 11 (depends on 8)

The centrifuge of claim 8, further comprising:
a latching switch, which allows a voltage to be applied to said first switch when said lid is in the closed position.

### Claim 12 (depends on 8)

The centrifuge of claim 8, wherein said first switch is selected from the group consisting of: momentary, toggle, and single-pole switches.

### Claim 13 (depends on 8)

The centrifuge of claim 8, wherein said brake pad assembly includes a spring assembly to engage said brake pad with said bottom plate.

### Claim 14 (depends on 13)

The centrifuge of claim 13, wherein said depression of said first switch releases said brake pad from said bottom plate.