Patent US3813985A successfully refreshed from Google Patents.
US3813985A
Expired / Lapsed
US
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Fasteners and method of manufacture thereof
Assignee: PEACE INDUSTRIES Ltd 1100 HICKS RD ROLLING MEADOWS IL A CORP OF
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Filing: 1971-12-01
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Granted: 1974-06-04
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Expires: 1991-12-01
Abstract
Abstract Improved fasteners providing superior bonding and holding power in wood or other materials. A variety of coated fasteners including single-bevel divergent point staples and an adhesive and coating composition to secure staples and other fasteners together in contiguous relation and to provide increased bonding holding power in the material into which the fastener is driven are disclosed.
Inventors
- 👤 G Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:19
CPC Classifications
F; F16; F16B; F16B15/00; F16B15/0015; F16B15/0092; F16B15/08; Y; Y10; Y10S; Y10S411/00; Y10S411/90; Y10S411/901; Y10S411/902; Y10S411/914; Y10S411/92
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
168 words
A staple having a body comprising a crown and first and second legs approximately parallel in U-form relation, each of said legs terminating in a single bevel extending substantially across the full section of the respective leg and forming a point area at the bevel edge furthest from the crown, each of said bevels forming an angle of from about 20* to about 70* with a plane normal to the axis of said leg, and each of said bevels being normal to a plane which contains the axis of the respective leg and is from about 20* to about 70* with a plane containing the axes of both of said legs, and having a coating of an adhesive composition comprising from about 20 to 40 weight percent solids in an organic solvent, the solids portion comprising from about 55 to 75 weight percent nitro-cellulose, from about 20 to 40 weight percent of a thermoplastic acrylic polymer and from about 3 to 5 weight percent of a low-temperature plasticizer.
Claim 2
Dependent Claim
168 words
A staple having a body comprising a crown and first and second legs approximately parallel in U-form relation, each of said legs terminating in a single bevel extending substantially across the full section of the respective leg and forming a point area at the bevel edge furthest from the crown, each of said bevels forming an angle of from about 20* to about 70* with a plane normal to the axis of said leg, and each of said bevels being normal to a plane which contains the axis of the respective leg and is from about 20* to about 70* with a plane containing the axes of both of said legs, and having a coating of an adhesive composition comprising from about 20 to 40 weight percent solids in an organic solvent, the solids portion comprising from about 55 to 75 weight percent nitro-cellulose, from about 20 to 40 weight percent of a thermoplastic acrylic polymer and from about 3 to 5 weight percent of a low-temperature plasticizer.
Claim 3
Dependent Claim
34 words
The staple of claim 1 wherein said planes containing the axes of the respective legs from angles of from 40* to about 50* with a plane containing the axes of both of said legs.
Claim 4
Dependent Claim
12 words
The staple of claim 1 wherein the low-temperature plasticizer is triphenyl phosphate.
Claim 5
Dependent Claim
18 words
The staple of claim 1 wherein the thermoplastic acrylic polymer is selected from the acrylic and methacrylic esters.
Claim 6
Dependent Claim
12 words
The staple of claim 1 wherein the low-temperature plasticizer is triphenyl phosphate.
Claim 7
Dependent Claim
110 words
A coated metallic fastener having improved bonding and holding power to materials into which it is driven and improved resistance to corrosion while in application use comprising a metal fastener of the type to be driven by a fastener driving machine, said fastener having at least one shank portion to be driven into the work, said shank portion being provided with a coating thereon of a composition comprising from about 55 to 75 weight percent nitrocellulose, from about 20 to 40 weight percent of a thermoplastic acrylic ester polymer, from about 2 to 6 weight percent of a low temperature plasticizer and from zero to about 5 weight percent nylon.
Claim 8
Dependent Claim
110 words
A coated metallic fastener having improved bonding and holding power to materials into which it is driven and improved resistance to corrosion while in application use comprising a metal fastener of the type to be driven by a fastener driving machine, said fastener having at least one shank portion to be driven into the work, said shank portion being provided with a coating thereon of a composition comprising from about 55 to 75 weight percent nitrocellulose, from about 20 to 40 weight percent of a thermoplastic acrylic ester polymer, from about 2 to 6 weight percent of a low temperature plasticizer and from zero to about 5 weight percent nylon.
Claim 9
Dependent Claim
22 words
The coated fastener of claim 6 wherein the low-temperature plasticizer is present in an amount of from 3 to 5 weight percent.
Claim 10
Dependent Claim
12 words
The coated fastener of claim 6 wherein the fastener is a nail.
Claim 11
Dependent Claim
13 words
The coated nail of claim 8 wherein the nail has a smooth shank.
Claim 12
Dependent Claim
13 words
The coated nail of claim 8 wherein the nail has a deforMed shank.
Claim 13
Dependent Claim
12 words
The coated fastener of claim 6 wherein the fastener is a staple.
Claim 14
Dependent Claim
12 words
The coated fastener of claim 6 wherein the fastener is a stud.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |