# US 10,765,090 B2 · Animal weighing scale

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- Number: US 10,765,090 B2
- Document ID: US10765090B2
- Status: Granted
- Kind: B2
- Application number: 15/559,964
- Filed: 2015-04-24
- Published: 2018-04-19
- Granted: 2020-09-08
- Earliest claimed: 2015-04-24
- Assignees: A&D Company, Limited
- Applicants: A&D Company, Limited
- Inventors: Naoto Izumo; Ken Ihara; Shunsuke Kasamatsu
- Web page: https://patentgrep.com/patent/US10765090B2

## CPC

- A01K 29/00: Other apparatus for animal husbandry
- A01K 1/031: {Cages for laboratory animals; Cages for measuring metabolism of animals}
- A01K 1/0317: {Monitoring or measuring animal properties or behaviour}
- G01G 17/00: Apparatus for or methods of weighing material of special form or property (determining weight by measuring volume G01F)
- G01G 17/08: for weighing livestock
- G01G 21/28: Frames, Housings
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- G01G: WEIGHING (sorting by weighing B07C5/16)

## Abstract

Provided is an animal weighing scale that automatically measures a weight of an animal by a simple configuration. The animal weighing scale includes a breeding container for laboratory animals and a scale including a weighing pan supported by a weight sensor, the weighing pan is disposed inside a breeding space of the breeding container, and the weight sensor is disposed inside or outside the breeding space, and accordingly, based on a measurement value change when an animal inside the container is placed onto the pan, a weight change of the animal can be continuously recorded.

## Claims

### Claim 1

An animal weighing scale comprising:
a breeding container for laboratory animals; and
a scale including a weighing pan supported by a weight sensor,
wherein the scale includes
a pan supporting post to support the weighing pan,
a bottom surface of a breeding space of the breeding container has a bottom surface opening through which the pan supporting post is inserted,
the pan supporting post projects to the inside of the breeding space from the bottom surface of the breeding space,
the weighing pan is disposed inside the breeding space,
the weight sensor is disposed outside the breeding space, and
between the pan supporting post and the bottom surface opening, a circumferential wall surrounding the pan supporting post in the circumferential direction is formed, and an outer circumference of the circumferential wall substantially matches the bottom surface opening.

### Claim 2 (depends on 1)

The animal weighing scale according to claim 1,
wherein between the circumferential wall and the bottom surface opening, a seal member is annularly disposed.

### Claim 3 (depends on 2)

The animal weighing scale according to claim 2,
wherein between the circumferential wall and the pan supporting post, a diaphragm-shaped second seal member is disposed.

### Claim 4 (depends on 2)

The animal weighing scale according to claim 2,
wherein at least a base end portion side of the circumferential wall is formed to increase in diameter downward.

### Claim 5 (depends on 1)

The animal weighing scale according to claim 1,
wherein the breeding container is supported by a support member that supports a weight of the entire breeding container.

### Claim 6 (depends on 5)

The animal weighing scale according to claim 5,
wherein the support member is a case that contains the scale, and has a case hole that corresponds to the bottom surface opening and is formed in an upper surface of the case.

### Claim 7 (depends on 5)

The animal weighing scale according to claim 5,
wherein the support member is formed on a floor surface on which the scale is disposed and/or an upper surface of a main body of the scale.

### Claim 8 (depends on 6)

The animal weighing scale according to claim 6,
wherein measurement data from the weight sensor is output by a radio transmitter to analyzation equipment, and the radio transmitter is fixed to a side surface of the case.