US3915790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for joining of plywood plies
Assignee: Individual
•
Filing: 1973-06-28
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Granted: 1975-10-28
•
Expires: 1993-06-28
Abstract
Abstract Plywood plies are abutted in edge-to-edge relationship so as to form a juncture at the butt, and a plurality of spaced dots of adhesive are applied to the juncture so as to connect the plies together. A method and an apparatus for carrying out the invention are disclosed.
Inventors
- 👤 Erwin Haug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:07
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/10; B27G; B27G11/00; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1798
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
IN AN APPARATUS FOR JOINING PLYWOOD PILES, A COMBINATION COMPRISING FIRST MEANS FOR ABUTTING PLYWOOD PILES IN EDGE-TOEDGE RELATIONSHIP SO AS TO FORM A JUNCTURE, AND SECOND MEANS FOR APPLYING TO SAID JUNCTURE A PLURALITY OF SPACED DOTS OF ADHESIVE SO AS TO CONNECT SAID PILES, SAID SECOND MEANS COMPRISING AN ARM HAVING A TRANSFER FACE DIMENSIONED TO TRANSFER A SPOT OF ADHESIVE, A SOURCE OF ADHESIVE, AND PIVOT MEANS MOUNTING SAID ARM FOR PIVOTING MOVEMENT IN A PATH IN WHICH SAID TRANSFER FACE PICKS UP ADHESIVE FROM SAID SOURCE AND APPLIES SUCH ADHESIVE TO SAID JUNCTURE.
Claim 2
Dependent Claim
97 words
IN AN APPARATUS FOR JOINING PLYWOOD PILES, A COMBINATION COMPRISING FIRST MEANS FOR ABUTTING PLYWOOD PILES IN EDGE-TOEDGE RELATIONSHIP SO AS TO FORM A JUNCTURE, AND SECOND MEANS FOR APPLYING TO SAID JUNCTURE A PLURALITY OF SPACED DOTS OF ADHESIVE SO AS TO CONNECT SAID PILES, SAID SECOND MEANS COMPRISING AN ARM HAVING A TRANSFER FACE DIMENSIONED TO TRANSFER A SPOT OF ADHESIVE, A SOURCE OF ADHESIVE, AND PIVOT MEANS MOUNTING SAID ARM FOR PIVOTING MOVEMENT IN A PATH IN WHICH SAID TRANSFER FACE PICKS UP ADHESIVE FROM SAID SOURCE AND APPLIES SUCH ADHESIVE TO SAID JUNCTURE.
Claim 3
Dependent Claim
29 words
A combination as defined in claim 1; further comprising a table over which said plies move; and wherein said second means are at least partially arranged beneath said table.
Claim 4
Dependent Claim
56 words
A combination as defined in claim 1, wherein said pivot means comprises a rotatable shaft on which said arm is fixedly mounted, a transverse arm on said shaft, a rod having one end articulated to said transverse arm and an other end, an eccentric connected with said other end, and a motor for driving said eccentric.
Claim 5
Dependent Claim
17 words
A combination as defined in claim 3; and further comprising an adjusting device provided on said rod.
Claim 6
Dependent Claim
46 words
A combination as defined in claim 3; further comprising a drive shaft connected with said eccentric; and a belt drive connecting said motor with said drive shaft and being adjustable so as to vary the speed of rotation of said drive shaft per unit of time.
Claim 7
Dependent Claim
36 words
A combination as defined in claim 3; further comprising a drive shaft connected with said eccentric and said motor; and drive roller means driven by said drive shaft and opErative for engaging and advancing said plies.
Claim 8
Dependent Claim
40 words
A combination as defined in claim 1; further comprising spaced drive rollers and cooperating pressure rollers for engaging and advancing said plies; and wherein said second means are arranged for applying said adhesive spots intermediate two of said drive rollers.
Claim 9
Dependent Claim
36 words
A combination as defined in claim 1, wherein said transfer face is arranged to travel in an arcuate path; and wherein said source comprises a container which can be inserted into and removed from said path.
Claim 10
Dependent Claim
26 words
A combination as defined in claim 8; and further comprising moving means operative for moving said container out of said path when said arm is stationary.
Claim 11
Dependent Claim
26 words
A combination as defined in claim 1, said source including a container for adhesive; and further comprising heating means for heating the adhesive in said container.
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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |