US3845696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a shipping bag
Assignee: Dalpak Corp
•
Filing: 1973-07-09
•
Granted: 1974-11-05
•
Expires: 1993-07-09
Abstract
Abstract A shipping bag for mattresses and similar articles is formed from a two-ply tube including front and back walls and side walls comprising inwardly projecting gusset folds. The outer ply of the front wall extends beyond the remaining plies to form endwise projecting lips. One of the lips is folded over the corresponding ends of the side walls and the back wall and is secured to the outer ply of the back wall to form a closed end. The corners of the front and back walls at the closed end are then folded inwardly and are secured in the gusset folds of the side walls. Upon completion of the foregoing steps, an article is inserted into the bag. The ends of the side walls and the back wall at the open end of the bag are then folded inwardly and the lip at the open end is secured to the outer ply of the back wall to close the bag. In a second embodiment of the invention, threads are secured in the corners of the outer ply of the bag to prevent tearing.
Inventors
- 👤 D Long
- 👤 N Derby
- 👤 P Chorak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:30
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D31/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
118 words
A method of forming a bag including the steps of: forming inwardly projecting gusset folds along the opposite edges of a back wall; adhesively securing a front wall of longer length than the back wall to the edges of the gusset folds remote from the back wall with the front wall projecting beyond at least one end of the back wall and the gusset folds to form an endwise projecting lip; adhesively securing the endwise projecting lip of the front wall to the outer surface of the back wall to form a bag having one closed end and one open end; and folding and securing the corners of the closed end of the bag into the gusset folds.
Claim 2
Independent Claim
118 words
A method of forming a bag including the steps of: forming inwardly projecting gusset folds along the opposite edges of a back wall; adhesively securing a front wall of longer length than the back wall to the edges of the gusset folds remote from the back wall with the front wall projecting beyond at least one end of the back wall and the gusset folds to form an endwise projecting lip; adhesively securing the endwise projecting lip of the front wall to the outer surface of the back wall to form a bag having one closed end and one open end; and folding and securing the corners of the closed end of the bag into the gusset folds.
Claim 3
Independent Claim
136 words
A method of forming a bag including the steps of: forming inwardly projecting gusset folds along the opposite edges of the back wall; gluing a front wall of longer length than the back wall to the edges of the gusset folds remote from the back wall with the front wall projecting beyond at least one end of the back wall and the gusset folds to form an endwise projecting lip; gluing the endwise projecting lip of the front wall to the outer surface of the back wall to form a bag having one closed end and one opened end; folding the corners of the closed end of the bag into the gusset folds; and gluing the interiors of the corners to the interiors of the gusset folds and thereby securing the corners within the gusset folds.
Claim 4
Independent Claim
136 words
A method of forming a bag including the steps of: forming inwardly projecting gusset folds along the opposite edges of the back wall; gluing a front wall of longer length than the back wall to the edges of the gusset folds remote from the back wall with the front wall projecting beyond at least one end of the back wall and the gusset folds to form an endwise projecting lip; gluing the endwise projecting lip of the front wall to the outer surface of the back wall to form a bag having one closed end and one opened end; folding the corners of the closed end of the bag into the gusset folds; and gluing the interiors of the corners to the interiors of the gusset folds and thereby securing the corners within the gusset folds.
Claim 5
Dependent Claim
96 words
The method of forming a bag according to claim 2 wherein the step of securing a front wall to the edges of the gusset folds is further characterized by securing the front wall to the edges of the gusSet folds with both ends of the front wall projecting beyond the ends of the back wall and the gusset folds and further including the subsequent step of securing the end of the front wall at the open end of the bag to the outer surface of the back wall to close the open end of the bag.
Claim 6
Independent Claim
111 words
A method of making a bag including the steps of: folding a lip extending from an end of the front wall of a tube comprising opposed planar front and back walls and opposed side walls each having an inwardly projecting gusset fold formed therein over the ends of the side walls and the back wall and securing the lip to the outer surface of the back wall to form a bag having one open end and one closed end; and folding the corners of the front and back walls at the closed end of the bag inwardly and securing the inwardly folded corners in the gusset folds of the side walls.
Claim 7
Independent Claim
111 words
A method of making a bag including the steps of: folding a lip extending from an end of the front wall of a tube comprising opposed planar front and back walls and opposed side walls each having an inwardly projecting gusset fold formed therein over the ends of the side walls and the back wall and securing the lip to the outer surface of the back wall to form a bag having one open end and one closed end; and folding the corners of the front and back walls at the closed end of the bag inwardly and securing the inwardly folded corners in the gusset folds of the side walls.
Claim 8
Dependent Claim
36 words
The method of making a bag according to claim 4 including the additional step of securing threads in the corners of the tube which lie between the front and back walls and the opposed side walls.
Claim 9
Independent Claim
79 words
A method of making a bag including the steps of: forming a tube comprising opposed front and back walls and side walls extending between the front and back walls and each having an inwardly projecting gusset fold formed therein; securing reinforcing threads in each of the corners between the front and back walls and the side walls to prevent tears from propogating through the corners of the bag; and closing one end of the tube to form a bag.
Claim 10
Independent Claim
79 words
A method of making a bag including the steps of: forming a tube comprising opposed front and back walls and side walls extending between the front and back walls and each having an inwardly projecting gusset fold formed therein; securing reinforcing threads in each of the corners between the front and back walls and the side walls to prevent tears from propogating through the corners of the bag; and closing one end of the tube to form a bag.
Claim 11
Dependent Claim
96 words
The method of making a bag according to claim 6 wherein the tube forming step is further characterized by forming a tube having a lip which projects from one end of the front wall and including the additional steps of folding the lip over the ends of the side walls and the back wall and securing the lip to the back wall to form a closed end, and folding the corners of the front and back walls at the closed end inwardly and securing the inwardly folded corners in the gusset folds of the side walls.
Claim 12
Independent Claim
111 words
A method of making a bag including the steps of: folding a lip extending from an end of the front wall of the tube comprising opposed planar front and back walls and opposed side walls each having an inwardly projecting gusset fold formed therein over the ends of the side walls of the back wall and gluing the lip to the outer surface of the back wall to form a bag having one open end and one closed end; and folding the corners of the front and back walls at the closed end of the bag inwardly and gluing the inwardly folded corners in the gusset folds in the side walls.
Claim 13
Independent Claim
111 words
A method of making a bag including the steps of: folding a lip extending from an end of the front wall of the tube comprising opposed planar front and back walls and opposed side walls each having an inwardly projecting gusset fold formed therein over the ends of the side walls of the back wall and gluing the lip to the outer surface of the back wall to form a bag having one open end and one closed end; and folding the corners of the front and back walls at the closed end of the bag inwardly and gluing the inwardly folded corners in the gusset folds in the side walls.
Claim 14
Independent Claim
138 words
A method of forming a bag including the steps of: forming inwardly projecting gusset folds along the opposite edges of a paper back wall; securing a paper front wall of longer length than the back wall to the edges of the gusset folds remote from the back wall with the front wall projecting beyond at least one end of the back wall and the gusset folds to form an endwise projecting lip; securing the endwise projecting lip of the front wall to the outer surface of the back wall to form a bag having one closed end and one open end; folding the corners of the closed end of the bag into the gusset folds; and securing the interiors of the corner to the interiors of the gusset folds and thereby securing the corners within the gusset folds.
Claim 15
Independent Claim
138 words
A method of forming a bag including the steps of: forming inwardly projecting gusset folds along the opposite edges of a paper back wall; securing a paper front wall of longer length than the back wall to the edges of the gusset folds remote from the back wall with the front wall projecting beyond at least one end of the back wall and the gusset folds to form an endwise projecting lip; securing the endwise projecting lip of the front wall to the outer surface of the back wall to form a bag having one closed end and one open end; folding the corners of the closed end of the bag into the gusset folds; and securing the interiors of the corner to the interiors of the gusset folds and thereby securing the corners within the gusset folds.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |