US4019631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw package
Assignee: Bulten Kanthal AB
•
Filing: 1975-04-18
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Granted: 1977-04-26
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Expires: 1995-04-18
Abstract
Abstract A screw package comprising a carrier strip through which the screws extend transversely with the essentially flat under surface of the screw heads resting against the upper surface of the strip. The strip has holes the diameter of which is closely related to the shank diameter of the screws. Around each hole there extend arcuate slots, between the ends of which comparatively weak webs have been left, or deep weakening lines, in such a manner that, as a screw is driven in, a washer consisting of the carrier strip material will be separated from the carrier strip to be clamped between the under surface of the screw head and the work piece wherein the screw is applied.
Inventors
- 👤 Sixten Harald Lejdegard
- 👤 Stig Lennart Bjorklind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:33
CPC Classifications
F; F16; F16B; F16B27/00; B; B65; B65D; B65D73/00; B65D73/0042; B65D2401/00; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
86 words
A screw package comprising: a. a carrier strip of flat sheet material having a series of holes; b. means defining circular lines of weakness in said strip entirely surrounding each of said holes whereby a prospective flat washer is defined in said strip; and c. a plurality of screws having heads and shanks, said heads having entirely flat undersides disposed against the uppermost surface of said strip, and said shanks extending through said holes and having a snug screw-retaining fit with said strip in said holes.
Claim 2
Dependent Claim
86 words
A screw package comprising: a. a carrier strip of flat sheet material having a series of holes; b. means defining circular lines of weakness in said strip entirely surrounding each of said holes whereby a prospective flat washer is defined in said strip; and c. a plurality of screws having heads and shanks, said heads having entirely flat undersides disposed against the uppermost surface of said strip, and said shanks extending through said holes and having a snug screw-retaining fit with said strip in said holes.
Claim 3
Dependent Claim
18 words
A screw-package according to claim 1 in which said flat sheet material has the physical properties of nylon.
Claim 4
Dependent Claim
34 words
A screw-package according to claim 1 in which the edge portions of said carrier strip adjacent to said screws can extend into the space between successive screws on each adjacent one of said strips.
Claim 5
Dependent Claim
23 words
A screw-package according to claim 1 including a sheet of plastic foil carried by said carrier strip in surrounding relation to said heads.
References Cited (Backward Citations)
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Cited
US2556844A
Cited
US3211284A
Cited
US3202270A
Cited
US3299766A
Cited
US3392228A
Cited
US3904032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |