Patent US3875368A successfully refreshed from Google Patents.
US3875368A
Expired / Lapsed
US
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Apparatus for connecting or repairing flat workpieces
Assignee: Heinrich Kuper GmbH and Co KG
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Filing: 1973-10-18
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Granted: 1975-04-01
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Expires: 1993-10-18
Abstract
Abstract A device for applying a thermoplastic adhesive carrying thread across a joint or gap in sheet material such as wood veneer, consists of a body with a handle, a pressing member and a thread reel container, the pressing member having a heater. In action the thread is drawn from a reel in the container, passed down a guide tube to the front of the presser, and applied to the veneer by moving the device forward by hand whilst pressing it downwards on to the veneer. The device may have auxiliary pressing and guide rollers, and the presser foot may be shaped so that backward movement thereof cuts off a length of thread after its application to the veneer.
Inventors
- 👤 Heinz Biewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:33
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/48; B29C65/50; B29C65/5007; B29C65/5035; B27; B27D; B27D1/00; B27D1/10; B27G; B27G11/00; B29C65/02; B29C65/18; B29C65/4805; B29C65/481; B29C65/4815; B29C65/5092; B29C66/00; B29C66/80; B29C66/83; B29C66/836; B29C66/8362; B29C66/84; B29C66/861; B29C73/00; B29C73/04; B29C73/10; B31; B31F; B31F7/00; B31F7/008; B29C66/40; B29C66/41; B29C66/43; B29C66/431; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1715; Y10T156/1717; Y10T156/1788; Y10T156/1795
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
172 words
A device for butt-connecting or repairing flat workpieces, comprising: an elongated carrier body; a handle mounted by one end adjacent an end of said carrier body; a storage receptacle capable of receiving at least one roll of thread with a thermoplastic adhesive coating thereon, located on the other end of said handle, a pressing member; heating means for said pressing member mounted transversely of said carrier body at the other end thereof; and guide means located on said pressing member to guide said thread to a position forward of said pressing member in the direction of travel of said device when in use; and wherein said heating means is a hollow cylindrical heatconducting body, and said pressing member is secured within said body and has an external foot adapted to apply said thread and adhesive to said workpiece or workpieces, flatten said thread and adhesive thereon in the said direction of travel, and cause severance of said thread when said device is moved in a direction opposite to said direction of travel.
Claim 2
Independent Claim
172 words
A device for butt-connecting or repairing flat workpieces, comprising: an elongated carrier body; a handle mounted by one end adjacent an end of said carrier body; a storage receptacle capable of receiving at least one roll of thread with a thermoplastic adhesive coating thereon, located on the other end of said handle, a pressing member; heating means for said pressing member mounted transversely of said carrier body at the other end thereof; and guide means located on said pressing member to guide said thread to a position forward of said pressing member in the direction of travel of said device when in use; and wherein said heating means is a hollow cylindrical heatconducting body, and said pressing member is secured within said body and has an external foot adapted to apply said thread and adhesive to said workpiece or workpieces, flatten said thread and adhesive thereon in the said direction of travel, and cause severance of said thread when said device is moved in a direction opposite to said direction of travel.
Claim 3
Dependent Claim
32 words
A device as recited in claim 1, wherein said foot has a slant end face adapted to engage said thread, said end face extending over the whole width of said pressing member.
Claim 4
Dependent Claim
16 words
A device as recited in claim 1, including an electrical heating device for said heating means.
Claim 5
Dependent Claim
45 words
A device as recited in claim 1, wherein said guide means comprises a tube at least a portion of which is mounted on said pressing member such that said tube extends forwardly (in said direction of travel) of said pressing member and is heated therby.
Claim 6
Dependent Claim
53 words
A device as recited in claim 4, wherein the upper end of said tube is spaced apart from said pressing member, and the lower end is secured to said pressing member such that the lower end of said tube terminates adjacent to, but spaced apart from, the lower end of said pressing member.
Claim 7
Dependent Claim
53 words
A device as recited in claim 1 comprising a pressing roller rotatably mounted on a cantilevered arm extending from said carrier body at a point rearward of said pressing member, the lower surface of said pressing roller lying behind and substantially in the same plane as the lower end of said pressing member.
Claim 8
Dependent Claim
26 words
A device as recited in claim 6 including a scraper mounted on said pressing roller arm, and means for resiliently pressing said scraper against said roller.
Claim 9
Dependent Claim
31 words
A device as recited in claim 1 including two lateral guide rollers mounted one on each side of said carrier body, said guide rollers being located rearward of said pressing roller.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |