Patent US4052931A successfully refreshed from Google Patents.
US4052931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for lining containers
Assignee: Individual
•
Filing: 1976-09-24
•
Granted: 1977-10-11
•
Expires: 1996-09-24
Abstract
Abstract A bag-type liner is applied interiorly of a container, such as a corrugated carton or box, by inserting an open end of the liner over an open end of the container and thereafter creating a vacuum within the container and liner to simultaneously draw the liner within the container. In a first apparatus embodiment of this invention, the vacuum is created by moving a partially opened bottom of the container over a vacuum opening formed in the platen. In a second apparatus embodiment of this invention, a pair of vacuum plenums are movably mounted adjacent to sides and upper portions of the container to draw the vacuum over and between upper closure flaps connected to the container.
Inventors
- 👤 Hugh B. Morse
- 👤 Robert B. Johnson
- 👤 Helmut E. W. Masch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:00
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/74; B31B50/81; B31B2105/00; B31B2120/00; B31B2120/40; B31B2120/402; B31B2120/404
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
61 words
A method for applying a bag-type liner interiorly of a container comprising the steps of inserting an open end of said liner over an open end of said container, and creating a pressure within said container from a top portion thereof and within said liner which is less than ambient pressure exteriorly thereof and simultaneously drawing said liner within said container.
Claim 2
Independent Claim
61 words
A method for applying a bag-type liner interiorly of a container comprising the steps of inserting an open end of said liner over an open end of said container, and creating a pressure within said container from a top portion thereof and within said liner which is less than ambient pressure exteriorly thereof and simultaneously drawing said liner within said container.
Claim 3
Dependent Claim
35 words
The method of claim 1 wherein said container comprises upstanding closure flaps connected to an upper end thereof and wherein said inserting step comprises inserting said liner in enveloping relationship exteriorly of said closure flaps.
Claim 4
Dependent Claim
57 words
The method of claim 1 wherein said container comprises a pair of sidewalls and a pair of end walls and a bottom closure flap connected to each of said end and sidewalls and further comprising the step of folding all of said flaps into superimposed relationship prior to said step of creating a pressure within said container.
Claim 5
Dependent Claim
16 words
The method of claim 2 further comprising the step of moving said container on a conveyor.
Claim 6
Dependent Claim
41 words
The method of claim 1 wherein said creating step comprises moving at least one plenum adjacent to an upper portion of said container and creating said pressure within said plenum and communicating said pressure interiorly of said container and said liner.
Claim 7
Dependent Claim
29 words
The method of claim 5 wherein said creating step comprises moving a said plenum adjacent to each side of said container and into straddling relationship relative to ends thereof.
Claim 8
Dependent Claim
48 words
The method of claim 6 wherein said container comprises a pair of end walls and a pair of sidewalls each having a top closure flap connected thereto and wherein said creating step comprises communicating said pressure over top edges of the closure flaps connected to said side panels.
Claim 9
Dependent Claim
43 words
The method of claim 7 wherein said creating step further comprises communicating said pressure within said container through a slot formed between each adjacent pair of flaps connected to a respective one of said end walls and a respective one of said sidewalls.
Claim 10
Independent Claim
113 words
A method for applying a bag-type liner interiorly of a container comprising a pair of sidewalls and a pair of endwalls and a closure flap connected to an upper end of each of said sidewalls and endwalls, comprising the steps of positioning said closure flaps in upstanding relationship on said container, inserting an open end of said liner in enveloping relationship exteriorly over said closure flaps, and creating a pressure within said container and said liner which is less than ambient pressure exteriorly thereof and simultaneously drawing said liner within said container and over interior surfaces of said closure flaps while maintaining open end portions of said liner exteriorly of said closure flaps.
Claim 11
Independent Claim
113 words
A method for applying a bag-type liner interiorly of a container comprising a pair of sidewalls and a pair of endwalls and a closure flap connected to an upper end of each of said sidewalls and endwalls, comprising the steps of positioning said closure flaps in upstanding relationship on said container, inserting an open end of said liner in enveloping relationship exteriorly over said closure flaps, and creating a pressure within said container and said liner which is less than ambient pressure exteriorly thereof and simultaneously drawing said liner within said container and over interior surfaces of said closure flaps while maintaining open end portions of said liner exteriorly of said closure flaps.
Claim 12
Independent Claim
75 words
An apparatus for applying a bag-type liner interiorly of a container comprising first means for supporting said container, and second means movably mounted adjacent to said first means for movement between a lowered inoperative position and a raised operative position adjacent to a top portion of said container for creating a pressure within said container and said liner which is less than ambient pressure exteriorly thereof whereby said liner will be drawn into said container.
Claim 13
Independent Claim
75 words
An apparatus for applying a bag-type liner interiorly of a container comprising first means for supporting said container, and second means movably mounted adjacent to said first means for movement between a lowered inoperative position and a raised operative position adjacent to a top portion of said container for creating a pressure within said container and said liner which is less than ambient pressure exteriorly thereof whereby said liner will be drawn into said container.
Claim 14
Dependent Claim
30 words
The apparatus of claim 10 wherein said second means comprises at least one plenum mounted adjacent to said first means and means for selectively creating said pressure within said plenum.
Claim 15
Dependent Claim
14 words
The apparatus of claim 12 wherein said plenum is generally U-shaped in cross section.
Claim 16
Dependent Claim
36 words
The apparatus of claim 12 wherein said plenum is movably mounted adjacent to said first means for movement between said lowered inoperative position and said raised operative position adjacent to the top portion of said container.
Claim 17
Dependent Claim
24 words
The apparatus of claim 13 further comprising actuating means for selectively moving said plenum between its lowered inoperative position and its raised operative position.
Claim 18
Dependent Claim
19 words
The apparatus of claim 12 wherein a said plenum is mounted adjacent to each side of said first means.
Claim 19
Dependent Claim
21 words
The apparatus of claim 12 wherein said plenum comprises outer and inner walls defining a chamber therebetween and within said plenum.
Claim 20
Dependent Claim
36 words
The apparatus of claim 16 wherein an upper edge of said inner wall terminates short of an upper edge of said outer wall to define an opening therebetween communicating with the chamber defined in said plenum.
Claim 21
Dependent Claim
55 words
The apparatus of claim 17 wherein said plenum further comprises a pair of end walls each secured between adjacent ends of said inner and outer walls and a notch defined at each corner of said inner wall and end walls to define an opening communicating with said chamber on each lateral end of said plenum.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |