US3629033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making padded cover board structure
Assignee: Book Covers Inc
•
Filing: 1969-04-24
•
Granted: 1971-12-21
•
Expires: 1989-04-24
Abstract
Abstract The cover board structure is made with a single or multi-ply cover board, an overlying strip of paper secured to the cover board and a strip of padding disposed between the paper and the cover board. The cover board is cut from a stream of cover board structure to predetermined sizes.
Inventors
- 👤 Leewood C Carter
- 👤 Edward K Mullen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:30
CPC Classifications
B; B42; B42D; B42D3/00; B42D3/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1015; Y10T156/1034; Y10T428/00; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
32 words
A method as set forth in claim 1 which further comprises the step of severing the stream of secured paper material, padding material and board material into successive padded cover board structures.
Claim 2
Dependent Claim
29 words
A method as set forth in claim 1 wherein the folded sides of the paper material are secured to the surface of the board material facing the padding material.
Claim 3
Dependent Claim
31 words
A method as set forth in claim 1 wherein the folded sides of the paper material are secured to the surface of the board material facing away from the padding material.
Claim 4
Dependent Claim
39 words
A method as set forth in claim 1 wherein the stream of board material includes a pair of spaced-apart plies of material and the folded sides of the paper material are secured between the plies of the board material.
Claim 5
Dependent Claim
31 words
A method as set forth in claim 5 wherein the folded sides of the paper material are simultaneously secured between the plies of board material as the plies are secured together.
Claim 6
Independent Claim
188 words
A method of making a padded cover board structure comprising the steps of aligning individual streams of board material, padding material and paper material with each other with the padding material disposed between the board material and paper material, and with the paper material being of greater width and overlapping the opposite sides of said board material and padding material, moving the respective streams of material at a constant rate with respect to each other, subsequently folding the opposite edges of the paper material inwardly thereof during movement of the respective streams, applying adhesive to said opposite edges of said paper material, placing the folded edges of the paper material against a surface of the board material while simultaneously holding the padding material therebetween under friction, securing the folded edges of the paper material to the surface of the board material stream only along the contiguous surfaces of the board material stream and said folded edges of the paper material, and subsequently severing the stream of materials into individual cover board structures wherein the severed padding material is securely held between the severed paper material and board material.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |