US3608765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neck for widemouth jar and cap therefor
Assignee: Cap Snap Co
•
Filing: 1970-04-01
•
Granted: 1971-09-28
•
Expires: 1990-04-01
Abstract
Abstract A widemouth jar of plastic or glass of the type used for peanut butter has an exterior neck finish comprising two circumferential, vertically spaced buttressed beads, the lower being of greater diameter than the upper. The plastic cap which fits on the neck has a flattop disk with a peripheral skirt, the interior of which is formed with two circumferential beads dimensioned to engage immediately under the radial flanks of the beads of the neck. The wall of the skirt is weakened immediately above the lower cap bead in a circumferential internal groove which connects with a downward slanted internal groove extending to the bottom of the skirt. A finger grip tab depends from the bottom of the skirt to one side of the slanted groove. This application is an improvement upon U.S. Pat. No. 3,338,446 patented Aug. 29, 1967. However, the present invention is particularly suited to widemouth (e.g. 120 mm.) jars of plastic suitable for peanut butter and other substances which have heretofore been packed in glass jars closed with metal screw caps.
Inventors
- 👤 George W Faulstich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:29
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/46; B65D41/48; B65D41/485; B65D2401/00; B65D2401/15; B65D2401/25; B65D2401/35
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
274 words
In combination, a thin-walled container neck formed with an external, circumferential first upper bead spaced downward from the upper end of said neck and an external, circumferential first lower bead spaced downward from said upper bead, and a cylindrical outer surface below said lower bead, said upper bead being buttress-shaped and having a downward-outward slanted first conical flank and a substantially radial first bottom flank at the lower end of said first conical flank, said lower bead being buttress-shaped and having a downward-outward slanted second conical flank originating at about the level of said first bottom flank and a substantially radial second bottom flank at the lower end of said second conical flank; and a deformable plastic cap formed with a central top disk and a substantially cylindrical, thin-walled outer skirt depending from the periphery of said disk, said outer skirt scored and weakened in a circumferential first groove opposite the lower edge of said first conical flank and also in a slanted second groove joining said first groove and extending down to the bottom edge of said outer skirt, and an integral tab extending below said bottom edge adjacent the lower end of said second groove, an internal circumferential upper second bead of approximately semicircular cross section positioned immediately below said first bottom flank, an internal circumferential lower second bead of approximately semicircular cross section positioned immediately below said first groove and said second bottom flank; said cap and neck interfitting in assembled position with the upper edge of said neck tight against the underside of said disk and the inside of said outer skirt fitting tight around the outside of said neck.
Claim 2
Dependent Claim
274 words
In combination, a thin-walled container neck formed with an external, circumferential first upper bead spaced downward from the upper end of said neck and an external, circumferential first lower bead spaced downward from said upper bead, and a cylindrical outer surface below said lower bead, said upper bead being buttress-shaped and having a downward-outward slanted first conical flank and a substantially radial first bottom flank at the lower end of said first conical flank, said lower bead being buttress-shaped and having a downward-outward slanted second conical flank originating at about the level of said first bottom flank and a substantially radial second bottom flank at the lower end of said second conical flank; and a deformable plastic cap formed with a central top disk and a substantially cylindrical, thin-walled outer skirt depending from the periphery of said disk, said outer skirt scored and weakened in a circumferential first groove opposite the lower edge of said first conical flank and also in a slanted second groove joining said first groove and extending down to the bottom edge of said outer skirt, and an integral tab extending below said bottom edge adjacent the lower end of said second groove, an internal circumferential upper second bead of approximately semicircular cross section positioned immediately below said first bottom flank, an internal circumferential lower second bead of approximately semicircular cross section positioned immediately below said first groove and said second bottom flank; said cap and neck interfitting in assembled position with the upper edge of said neck tight against the underside of said disk and the inside of said outer skirt fitting tight around the outside of said neck.
Claim 3
Dependent Claim
42 words
The combination of claim 1 in which said cap is formed with a short cylindrical inner skirt depending from said disk spaced inward from said outer skirt, the upper end of said neck wedged between said skirts to form a tight seal.
Claim 4
Dependent Claim
237 words
A deformable, plastic cap for a thin-walled container neck formed with an external, circumferential first upper bead spaced downward from the upper end of said neck and an external, circumferential first lower bead spaced downward from said upper bead, and a cylindrical outer surface below said lower bead, said upper bead being buttress-shaped and having a downward-outward slanted first conical flank and a substantially radial first bottom flank at the lower end of said first conical flank, said lower bead being buttress-shaped and having a downward-outward slanted second conical flank originating at about the level of said first bottom flank and a substantially radial second bottom flank at the lower end of said second conical flank; said cap having a central top disk and a substantially cylindrical, thin-walled outer skirt depending from the periphery of said disk, said outer skirt scored and weakened in a circumferential first groove opposite the lower edge of said first conical flank and also in a slanted second groove joining said first groove and extending down to the bottom edge of said outer skirt, and an integral tab extending below said bottom edge adjacent to the lower end of said second groove, an internal circumferential upper second bead of approximately semicircular cross section positioned immediately below said first bottom flank, an internal circumferential lower second bead of approximately semicircular cross section positioned immediately below said first groove and said second bottom flank.
Claim 5
Dependent Claim
237 words
A deformable, plastic cap for a thin-walled container neck formed with an external, circumferential first upper bead spaced downward from the upper end of said neck and an external, circumferential first lower bead spaced downward from said upper bead, and a cylindrical outer surface below said lower bead, said upper bead being buttress-shaped and having a downward-outward slanted first conical flank and a substantially radial first bottom flank at the lower end of said first conical flank, said lower bead being buttress-shaped and having a downward-outward slanted second conical flank originating at about the level of said first bottom flank and a substantially radial second bottom flank at the lower end of said second conical flank; said cap having a central top disk and a substantially cylindrical, thin-walled outer skirt depending from the periphery of said disk, said outer skirt scored and weakened in a circumferential first groove opposite the lower edge of said first conical flank and also in a slanted second groove joining said first groove and extending down to the bottom edge of said outer skirt, and an integral tab extending below said bottom edge adjacent to the lower end of said second groove, an internal circumferential upper second bead of approximately semicircular cross section positioned immediately below said first bottom flank, an internal circumferential lower second bead of approximately semicircular cross section positioned immediately below said first groove and said second bottom flank.
Claim 6
Dependent Claim
24 words
A cap according to claim 3 which further comprises a short, cylindrical inner skirt depending from said disk spaced inward from said outer skirt.
References Cited (Backward Citations)
US3434613A
Cited
US3392862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |