# US 4,391,412 A · Apparatus for limiting filling height of containers

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- Number: US 4,391,412 A
- Document ID: US4391412A
- Status: Granted
- Kind: A
- Application number: 06/195,767
- Filed: 1980-10-10
- Granted: 1983-07-05
- Earliest claimed: 1979-10-18
- Inventors: Albert Goldhammer
- Web page: https://patentgrep.com/patent/US4391412A

## CPC

- B65D 90/26: Overfill prevention
- B02C 18/0007: {specially adapted for disintegrating documents}
- B02C 18/16: Details
- B02C 2018/0023: {Switching devices}
- 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
- B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02})

## Abstract

Apparatus for limiting the filling height of containers for receiving shredded or minced paper film or the like from cutting or shredding machines, characterized by a switch for stopping the machine when the container is filled to a predetermined height, the container being pivotally mounted with one side of its bottom edge on a housing and the opposite edge on a spring, and a switch controlling the operation of the cutting or shredding machine mounted in the path of the spring.

## Claims

### Claim 1

An apparatus for limiting the filling height of a container for a cutting or shredding machine for the destruction of documents and microfilms, a container pivotally mounted in a housing and having a base, a rear end and a front end, the housing supporting the rear end of the container on a horizontal portion of an inclined support extending upwards from the base of the housing, an upper end of the front end of the container being supported by a spring catch actuating switch means to stop a cutting or shredding machine when a predetermined height is sensed and reached.

### Claim 2 (depends on 1)

Apparatus according to claim 1, wherein the front side of the container is disposed diagonally to a bottom edge (12), a sensing lever (23) of a spring loaded catch (5) includes mounting of a two armed lever, the other end of which lever provides an operating lever (24) controlled by a spring (7).

### Claim 3 (depends on 2)

Apparatus according to claim 2, wherein the tension of the spring (7) is adjustable.

### Claim 4 (depends on 1, 2, 3)

Apparatus according to any one of the claims 1 to 3, wherein the container is held in position by means including a spring loaded catch engaging a slide (25) operated by a spring (22), and means providing release of the container by a downward manual movement of the slide.

### Claim 5 (depends on 4)

Apparatus according to claim 4, wherein the slide (25) is responsively and electromechanically operated.

### Claim 6 (depends on 1, 2, 3, 4, 5)

Apparatus according to any one of the claims 1 to 5 wherein the switch means (27) is disposed at a top and outside of the housing bore.

### Claim 7

An apparatus for limiting the filling height of a container for a machine for cutting or shredding and for the destruction of documents, microfilms and the like, comprising a housing having a base, an inclined support extending upwardly from said base, and said inclined support having a horizontal portion and including a container, said container being pivotally mounted in said housing and said container having its rear end supported on the horizontal portion of said support, a spring catch supporting an upper front end of the container, and said spring catch adapted to activate a switch for stopping the cutting or shredding machine when a predetermined height of material in the container is sensed and reached, a sensing lever disposed adjacent the upper front end of the container and operatively engaging said spring catch, said lever embodying a two arm lever, a spring member engaging a portion of said last named lever, said spring member being adjustable, said catch including a spring loaded slide whereby release of the container is accomplished by downward movement of said slide.