# US 4,398,380 A · Packing apparatus

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- Number: US 4,398,380 A
- Document ID: US4398380A
- Status: Granted
- Kind: A
- Application number: 06/148,069
- Filed: 1980-05-12
- Granted: 1983-08-16
- Earliest claimed: 1979-10-17
- Assignees: Fuji Pack System Ltd.
- Inventors: Yoshiyuki Takamura
- Web page: https://patentgrep.com/patent/US4398380A

## CPC

- B65B 47/10: by vacuum
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)

## Abstract

Disclosed herein is a packing apparatus which comprises a container opening at its upper end and at least one film suction chamber positioned under the container and is connected to an appropriate absorbing device. The container defines a packing chamber for holding a part of a packing film in a baggy shape and receiving products to be packed therein. The suction chamber defines a chamber communicating with the absorbing device. The chamber further communicates with the packing chamber through a plurality of vent holes for creating a partial vocuum under the packing film.

## Claims

### Claim 1

Apparatus for packaging items with a unitary wrapping film comprising
a package chamber having an upper opening and a base opening;
a pair of suction chambers;
means for mounting said pair of suction chambers adjacent said bottom opening;
means for moving said pair of suction chambers so as to close and open said base opening so as to form said wrapper film when closed and dispense said film containing said items when open;
a plurality of vent holes in said suction chambers;
a holding ring replaceably mounted about the edge of said upper opening in said package chamber said holding ring being of a material which frictionally retains a sheet of said wrapping film without additional retaining means; and
suction means connected to said suction chambers for drawing the central area of said film into said package chamber when said suction chambers are in a closed position and while said film is being peripherally frictionally retained by said holding ring.

### Claim 2 (depends on 1)

The apparatus of claim 1 wherein said means for mounting said pair of suction chambers comprises
arms extending outwardly from each of said suction chambers; and
rotatable shafts secured to each of said arms whereby said suction chambers are pivotally movable about the axis of said shafts.

### Claim 3 (depends on 1)

The apparatus of claim 1 wherein said means for mounting said pair of suction chambers comprises
a substantially horizontal guide for retaining said suction chambers whereby said suction chambers are slideably opened and closed.

### Claim 4 (depends on 1)

The apparatus of claim 1 further comprising
first sealing means between each of said suction chambers and said package chamber when said suction chambers are in said closed position; and
second sealing means between each of said suction chambers when said suction chambers are in a closed position.

### Claim 5 (depends on 1)

The apparatus of claim 1 further comprising
motor means coupled to said means for moving said pair of suction chambers.