US3733975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner block forming apparatus
Assignee: CONCEPT PACAGING CORP A MI CORP
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Filing: 1972-01-03
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Granted: 1973-05-22
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Expires: 1992-01-03
Abstract
Abstract An apparatus for forming L-shaped corner posts having a hopper for dispensing seriatim multiple-ply boards of substantially uniform thickness throughout, cutting means which form an elongated groove in the board, the groove penetrating all but one ply of the board and leaving a hinge between two unequal portions. Glue is applied to the uncut surface of the board and the unequal portions of the board are folded about the hinge to form an L-shaped block. Squaring means align the cut edges of the unequal portions in a common plane while rollers compress the portions together so that uniformity of block shape is maintained. The L-shaped block has at least one of its surfaces sprayed with a protective coating and the block can then be cut into smaller lengths.
Inventors
- 👤 C Terrasi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:46
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/0003; B31F1/0006; B31F1/0009; B31F1/0012; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/06; B29C53/063; B29C53/066; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1026; Y10T83/00; Y10T83/02; Y10T83/0304
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
123 words
An apparatus for making L-shaped blocks from multiple-ply boards of substantially uniform thickness, said apparatus comprising: cutting means set to cut a groove in all but one ply of said boards, leaving a hinge in said one ply separating two unequal portions of said board; means for feeding said boards seriatim to said cutting means; means for applying glue to the uncut surface of said boards near the area of said groove as said boards pass from said cutting means; means for folding said cut and glue-containing boards about said hinge, thereby making an L-shaped block; means for applying a wax coating to at least one surface of said L-shaped block; and means for feeding said folded boards to said wax coating means.
Claim 2
Independent Claim
123 words
An apparatus for making L-shaped blocks from multiple-ply boards of substantially uniform thickness, said apparatus comprising: cutting means set to cut a groove in all but one ply of said boards, leaving a hinge in said one ply separating two unequal portions of said board; means for feeding said boards seriatim to said cutting means; means for applying glue to the uncut surface of said boards near the area of said groove as said boards pass from said cutting means; means for folding said cut and glue-containing boards about said hinge, thereby making an L-shaped block; means for applying a wax coating to at least one surface of said L-shaped block; and means for feeding said folded boards to said wax coating means.
Claim 3
Dependent Claim
45 words
An apparatus according to claim 1 wherein said feeding means for said cutting means includes a hopper for dispensing said boards seriatim from a stack; means for picking off the end board of said stack and for moving said end board to said cutting means.
Claim 4
Dependent Claim
40 words
An apparatus according to claim 2 and further comprising means to sense the absence of a board at said cutting means; and means to actuate said pick off means responsive to the absence of a board at said cutting means.
Claim 5
Dependent Claim
22 words
An apparatus according to claim 3 wherein said cutting means further includes drive rollers to drive said boards through said cutting means.
Claim 6
Dependent Claim
32 words
An apparatus according to claim 1 and further comprising means tO force glued and folded portions of said board into contact with each other to set the glue on said board portions.
Claim 7
Dependent Claim
29 words
An apparatus according to claim 1 and further comprising squaring means to align the cut edges of said folded block to be coplanar prior to setting of said glue.
Claim 8
Dependent Claim
48 words
An apparatus according to claim 6 wherein said squaring means includes a guide member positioned to abut said cut edges of said folded block, and means engaging a side of said folded block opposite said cut edges for forcing said cut edges against said squaring means guide member.
Claim 9
Dependent Claim
24 words
An apparatus according to claim 7 wherein said block engaging and forcing means includes a roller resiliently biased toward said squaring means guide means.
Claim 10
Dependent Claim
49 words
An apparatus according to claim 1 and further comprising means to sense the presence of a folded block at said was applying means, and means to shut off the flow of wax to said wax applying means in the absence of a folded block at said wax applying means.
Claim 11
Dependent Claim
35 words
An apparatus according to claim 1 and further including means for cutting said blocks into shorter lengths; and means for passing said wax coated blocks to said length cutting means from said wax applying means.
Claim 12
Dependent Claim
81 words
An apparatus according to claim 10 wherein said length cutting means includes at least one saw disposed transverse to the length of said folded blocks; an end stop for said folded blocks to limit the movement of said blocks; means to move said blocks so that an end thereof is in contact with said stop means; and means to move said block laterally of said end stop to said length cutting saw responsive to said block end contacting said stop means.
Claim 13
Dependent Claim
25 words
An apparatus according to claim 11 wherein said lateral moving means further includes means for sensing the presence of said block at said stop means.
Claim 14
Dependent Claim
26 words
An apparatus according to claim 11 and further including gate means to retain said blocks in displaced lateral position after movement by said lateral moving means.
Claim 15
Independent Claim
125 words
An apparatus for making an L-shaped corner post from a multiple-ply board of substantially uniform thickness throughout, said apparatus comprising: means for cutting a groove through all but one ply of said multiple-ply board; said groove extending longitudinally of said board and dividing said board into two unequal portions with a hinge therebetween; means for applying glue to the uncut surface of said board near the area of said groove as said board passes from said cutting means; means for folding said unequal portions of said board about said hinge to form an L-shaped corner post; and means for aligning said cut portions of each of said unequal portions into a common plane for precise alignment of said block prior to setting of said glue.
Claim 16
Independent Claim
125 words
An apparatus for making an L-shaped corner post from a multiple-ply board of substantially uniform thickness throughout, said apparatus comprising: means for cutting a groove through all but one ply of said multiple-ply board; said groove extending longitudinally of said board and dividing said board into two unequal portions with a hinge therebetween; means for applying glue to the uncut surface of said board near the area of said groove as said board passes from said cutting means; means for folding said unequal portions of said board about said hinge to form an L-shaped corner post; and means for aligning said cut portions of each of said unequal portions into a common plane for precise alignment of said block prior to setting of said glue.
Claim 17
Dependent Claim
54 words
An apparatus according to claim 14 wherein said aligning means includes a guide member positioned to abut said cut edges and means resiliently forcing said cut edges of said block against said guide member; and means for forcing said glued portions of said blocks together while said block is forced against said guide member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |