# US 12,157,590 B2 · Rotary sealing apparatus for blister packaging machines

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

- Number: US 12,157,590 B2
- Document ID: US12157590B2
- Status: Granted
- Kind: B2
- Application number: 18/004,431
- Filed: 2021-06-05
- Published: 2023-09-21
- Granted: 2024-12-03
- Earliest claimed: 2020-07-06
- Assignees: Scitech Centre; ACG Pam Pharma Technologies PVT. LTD.
- Applicants: Scitech Centre; Acg Pam Pharma Technologies Pvt. Ltd.
- Inventors: Karan Singh; Sumit Waghmare; Baban Dorge; Satish Kite; Amol Bokare; Ajit Shinde
- Web page: https://patentgrep.com/patent/US12157590B2

## CPC

- B65B 51/16: by rotary members
- B29C 65/18: using heated tools
- B29C 65/7802: {Positioning the parts to be joined, e.g. aligning, indexing or centring}
- B29C 66/112: {Single lapped joints}
- B29C 66/131: {Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area}
- B29C 66/53461: {joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies}
- B29C 66/81431: {comprising a single cavity, e.g. a groove}
- B29C 66/83413: {cooperating rollers, cylinders or drums}
- B29C 66/83415: {the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle (B29C66/83433 takes precedence)}
- B29C 66/8432: {Machines for making separate joints at the same time mounted in parallel or in series}
- B29C 66/849: {Packaging machines}
- B65B 9/04: one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
- B65B 57/02: responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
- B65B 57/04: and operating to control, or to stop, the feed of such material, containers, or packages
- B29C 66/71: {characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125)}
- B29C 66/72321: {consisting of metals or their alloys}
- B29K 2705/02: Aluminium
- B29L 2031/7164: {Blister packages}
- 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)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A rotary sealing apparatus for a blister packaging machine is disclosed. The rotary sealing apparatus includes a guide plate adapted to support a movement of a base foil having a plurality of blister pockets. The rotary sealing apparatus includes a counter sealing roller adapted to rotate to advance the base foil in a direction away from the guide plate and a sealing roller adapted to feed a seal foil between the counter sealing roller and the sealing roller. The counter sealing roller includes a plurality of cavities adapted to accommodate the plurality of blister pockets. The rotary sealing apparatus includes a cavity alignment unit disposed on the guide plate and adapted to align the plurality of blister pockets with the plurality of cavities. The cavity alignment unit is adapted to clamp the base foil on the guide plate to stretch the base foil to align the plurality of blister pockets with the plurality of cavities.

## Claims

### Claim 1

A rotary sealing apparatus (100) for a blister packaging machine, the rotary sealing apparatus (100) comprising:
a guide plate (110) adapted to support a movement of a base foil (106) having a plurality of blister pockets (104);
a counter sealing roller (112) adapted to tangentially receive the base foil (106) from the guide plate (110) and adapted to rotate to advance the base foil (106) in a direction away from the guide plate (110), wherein the counter sealing roller (112) includes a plurality of cavities (404) adapted to accommodate the plurality of blister pockets (104) of the base foil (106);
a sealing roller (114) adapted to feed a seal foil (108) between the counter sealing roller (112) and the sealing roller (114), wherein the sealing roller (114) is adapted to press against the counter sealing roller (112) to seal the base foil (106) with the seal foil (108); and
a cavity alignment unit (102) disposed on the guide plate (110) and adapted to align the plurality of blister pockets (104) with the plurality of cavities (404), wherein the cavity alignment unit (102) is adapted to clamp the base foil (106) on the guide plate (110) to stretch the base foil (106) to align the plurality of blister pockets (104) with the plurality of cavities (404) of the counter sealing roller (112).

### Claim 2 (depends on 1)

The rotary sealing apparatus (100) as claimed in claim 1, wherein the cavity alignment unit (102) comprising:
an actuating unit (504) adapted to clamp the base foil (106) on the guide plate (110) to stretch a portion of the base foil (106) between the sealing roller (114) and the counter sealing roller (112);
a controlling unit (502) in communication with the actuating unit (504) and configured to:
determine a position of each of the plurality of blister pockets (104) with respect to the plurality of cavities (404) formed on the counter sealing roller (112); and
operate the actuating unit (504) to clamp the base foil (106) based on the position of each of the plurality of blister pockets (104) with respect to the plurality of cavities (404).

### Claim 3 (depends on 2)

The rotary sealing apparatus (100) as claimed in claim 2, wherein the controlling unit (502) includes a processor (506) and a sensor (508) in communication with the processor (506), the processor (506) is configured to:
receive a value indicative of the position of the plurality of blister pockets (104) with respect to the plurality of cavities (404) of the counter sealing roller (112) from the sensor (508);
compare the received value with a threshold value indicative of a position of the plurality of blister pockets (104) with respect to the plurality of cavities (404) of the counter sealing roller (112); and
operate the actuating unit (504) to clamp the base foil (106) on the guide plate (110), if the received value is different from the threshold value indicative of the position.

### Claim 4 (depends on 3)

The rotary sealing apparatus (100) as claimed in claim 3, wherein the sensor (508) is a distance sensor (508) positioned adjacent to the guide plate (110) and adapted to determine the value indicative of the position of the plurality of blister pockets (104) with respect to the plurality of cavities (404).

### Claim 5 (depends on 2)

The rotary sealing apparatus (100) as claimed in claim 2, wherein the actuating unit (504) includes an actuator adapted to clamp the base foil (106), the actuator is adapted to move in a direction towards the base foil (106) moving on the guide plate (110).

### Claim 6 (depends on 2)

The rotary sealing apparatus (100) as claimed in claim 2, wherein the cavity alignment unit (102) includes a housing member (602) extending along a width of the guide plate (110), the housing member (602) is adapted to cover the actuating unit (504) on the guide plate (110).

### Claim 7 (depends on 1)

The rotary sealing apparatus (100) as claimed in claim 1 further comprising a first drive adapted to rotate the counter sealing roller (112) and a second drive adapted to rotate the sealing roller (114).

### Claim 8 (depends on 1)

The rotary sealing apparatus (100) as claimed in claim 1, wherein the first drive and the second drive rotate the counter sealing roller (112) and the sealing roller (114), respectively, in synchronization with respect to each other.

### Claim 9 (depends on 1)

The rotary sealing apparatus (100) as claimed in claim 1, wherein a circumference of the counter sealing roller (112) is greater than multiple draw of lengths of the base foil (106) in the blister packaging machine such that the plurality of blister pockets (104) misaligns with respect to the plurality of cavities (404) in a direction of the movement of the base foil (106).

### Claim 10 (depends on 2)

The rotary sealing apparatus (100) as claimed in claim 2, wherein the actuating unit (504) is adapted to clamp the base foil (106) on the guide plate (110) to stretch the base foil (106) such that the each of the plurality of blister pockets (104) accommodates within each of the plurality of cavities (404) of the counter sealing roller (112).

### Claim 11 (depends on 1)

The rotary sealing apparatus (100) as claimed in claim 1, wherein the plurality of blister pockets (104) are formed in the base foil (106) by a cold-forming process.

### Claim 12

A cavity alignment unit (102) for a rotary sealing apparatus (100) having a counter sealing roller (112) with a plurality of cavities (404) and a sealing roller (114), the cavity alignment unit (102) comprising:
an actuating unit (504) adapted to clamp a base foil (106) on a guide plate (110) of the rotary sealing apparatus (100) to stretch a portion of the base foil (106) between the sealing roller (114) and the counter sealing roller (112), wherein the base foil (106) includes a plurality of blister pockets (104) adapted to accommodate within the plurality of cavities (404) of the counter sealing roller (112);
a controlling unit (502) in communication with the actuating unit (504) and configured to:
determine a position of each of the plurality of blister pockets (104) with respect to the plurality of cavities (404) formed on the counter sealing roller (112); and
operate the actuating unit (504) to clamp the base foil (106) based on the position of each of the plurality of blister pockets (104) with respect to the plurality of cavities (404).

### Claim 13 (depends on 12)

The cavity alignment unit (102) as claimed in claim 12, wherein the controlling unit (502) includes a processor (506) and a sensor (508) in communication with the processor (506), the processor (506) is configured to:
receive a value indicative of the position of the plurality of blister pockets (104) with respect to the plurality of cavities (404) of the counter sealing roller (112) from the sensor (508);
compare the received value with a threshold value indicative of a position of the plurality of blister pockets (104) with respect to the plurality of cavities (404) of the counter sealing roller (112); and
operate the actuating unit (504) to clamp the base foil (106) on the guide plate (110), if the received value is different from the threshold value indicative of the position.

### Claim 14 (depends on 12)

The cavity alignment unit (102) as claimed in claim 12, wherein the actuating unit (504) includes an actuator adapted to move in a direction towards the base foil (106) moving on the guide plate (110).

### Claim 15 (depends on 12)

The cavity alignment unit (102) as claimed in claim 12, wherein the cavity alignment unit (102) includes a housing member (602) extending along a width of the guide plate (110), the housing member (602) is adapted to cover the actuating unit (504) on the guide plate (110).

### Claim 16 (depends on 12)

The cavity alignment unit (102) as claimed in claim 12, wherein the actuating unit (504) is adapted to clamp the base foil (106) on the guide plate (110) to stretch the base foil (106) such that the each of the plurality of blister pockets (104) accommodates within each of the plurality of cavities (404) of the counter sealing roller (112).

### Claim 17 (depends on 12)

The cavity alignment unit (102) of claim 12, wherein the rotary sealing apparatus (100) comprises a first drive adapted to rotate the counter sealing roller (112) and a second drive adapted to rotate the sealing roller (114).

### Claim 18 (depends on 17)

The cavity alignment unit (102) of claim 17, wherein the first drive and the second drive rotate the counter sealing roller (112) and the sealing roller (114), respectively, in synchronization with respect to each other.

### Claim 19 (depends on 18)

The cavity alignment unit (102) of claim 18, wherein a circumference of the counter sealing roller (112) is greater than multiple draw of lengths of the base foil (106).

### Claim 20 (depends on 19)

The cavity alignment unit (102) of claim 19, wherein the plurality of blister pockets (104) misaligns with respect to the plurality of cavities (404) in a direction of the movement of the base foil (106).