US3677211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of venting an aerosol dome
Assignee: Rexam Beverage Can Co
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Filing: 1970-04-13
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Granted: 1972-07-18
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Expires: 1990-04-13
Abstract
Abstract A method of forming a bead surrounding an opening in one end of a container body by rolling a neck extending from the body to a position where the free edge and an adjacent end portion of the neck overlap an adjacent outer surface of the body. A method contemplates rolling at least one selected portion of the neck to a smaller internal diameter than the internal diameter of the remainder of the neck so as to space a segment of the free edge from the outer surface of the body to provide a vent opening placing the internal area of the bead in communication with the surrounding outside area. In one embodiment, the smaller diameter portion of the bead is formed by producing projections extending above the free edge of the neck. A second embodiment contemplates outwardly deforming a selected portion of the neck and, in a third embodiment, the reduced diameter portion is deformed by inwardly deforming a selected portion of the neck.
Inventors
- 👤 Stanley J Miller
- 👤 James P Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:06
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/2615; B21D51/2623; B21D19/00; B21D19/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
132 words
In a method of forming a vented bead surrounding the opening in the dome body of an aerosol container of the type including the step of rolling the free edge of the neck of said dome body outwardly to produce an integral bead having a predetermined internal radius, the improvement comprising: rolling a major portion of said free edge of said neck to a contacting engagement with the outer surface of said neck, said free edge being substantially uninterrupted in configuration along the major circumferential portion thereof; and concurrently rolling the remaining minor portion of said free edge of said neck toward, but short of engagement with, said outer surface of said neck such that the internal radius of said bead along said minor portion is less than said predetermined internal radius.
Claim 2
Dependent Claim
132 words
In a method of forming a vented bead surrounding the opening in the dome body of an aerosol container of the type including the step of rolling the free edge of the neck of said dome body outwardly to produce an integral bead having a predetermined internal radius, the improvement comprising: rolling a major portion of said free edge of said neck to a contacting engagement with the outer surface of said neck, said free edge being substantially uninterrupted in configuration along the major circumferential portion thereof; and concurrently rolling the remaining minor portion of said free edge of said neck toward, but short of engagement with, said outer surface of said neck such that the internal radius of said bead along said minor portion is less than said predetermined internal radius.
Claim 3
Dependent Claim
27 words
A method as defined in claim 1, in which said minor portion of said free edge is produced by deforming the neck before said neck is rolled.
Claim 4
Dependent Claim
21 words
A method as defined in claim 2, in which said neck is deformed inwardly along substantially the entire axial length thereof.
Claim 5
Dependent Claim
27 words
A method as defined in claim 3, in which said neck is inwardly deformed at opposed locations to produce at least two selected free edge minor portions.
Claim 6
Dependent Claim
23 words
A method as defined in claim 2, in which said neck is outwardly deformed at least adjacent the free edge of said neck.
Claim 7
Dependent Claim
30 words
A method as defined in claim 1, in which said minor portion of said free edge portion is formed by producing projections extending above the free edge of said neck.
Claim 8
Independent Claim
126 words
A method of producing a vented bead surrounding an opening in a container end comprising the steps of producing at least one irregular contour on the free edge of a neck extending above the containEr end, said free edge remaining substantially uninterrupted in configuration along the major circumferential portion thereof; and engaging said free edge with a curling surface having a constant radius to displace said neck to a bead having an internal diameter with the free edge in overlapping relation to the outer surface of the container, said irregular contour causing a longitudinal portion of said neck to be displaced to a smaller diameter to space the irregular contour portion of the free edge from said outer surface and produce a vent for said bead.
Claim 9
Independent Claim
126 words
A method of producing a vented bead surrounding an opening in a container end comprising the steps of producing at least one irregular contour on the free edge of a neck extending above the containEr end, said free edge remaining substantially uninterrupted in configuration along the major circumferential portion thereof; and engaging said free edge with a curling surface having a constant radius to displace said neck to a bead having an internal diameter with the free edge in overlapping relation to the outer surface of the container, said irregular contour causing a longitudinal portion of said neck to be displaced to a smaller diameter to space the irregular contour portion of the free edge from said outer surface and produce a vent for said bead.
Claim 10
Dependent Claim
22 words
A method as defined in claim 7, in which said irregular contour is produced by deforming a portion of said neck inwardly.
Claim 11
Dependent Claim
22 words
A method as defined in claim 7, in which said irregular contour is produced by outwardly deforming a portion of said neck.
Claim 12
Dependent Claim
23 words
A method as defined in claim 7, in which said irregular contour is produced by forming a projection extending above the free edge.
Claim 13
Independent Claim
148 words
A method of producing a vented bead surrounding an opening in one end of a container dome body with a free edge in overlapping relation to the adjacent outer surface of the dome body which comprises the steps of rolling a minor circumferential portion, commencing at said free edge of a neck extending above said body, to a substantially spiral configuration having an increasing radius; rolling the remainder of said neck to a predetermined constant radius; continuing said rolling until the radius of said spiral equals said predetermined constant radius; and, thereafter, rolling all of said neck to said predetermined constant radius until said free edge is in overlapping relation with the adjacent surface of said dome body whereby the major portion of said free edge is in contacting relation with said adjacent surface while the free edge of said spiral portion is spaced from said adjacent surface.
Claim 14
Independent Claim
148 words
A method of producing a vented bead surrounding an opening in one end of a container dome body with a free edge in overlapping relation to the adjacent outer surface of the dome body which comprises the steps of rolling a minor circumferential portion, commencing at said free edge of a neck extending above said body, to a substantially spiral configuration having an increasing radius; rolling the remainder of said neck to a predetermined constant radius; continuing said rolling until the radius of said spiral equals said predetermined constant radius; and, thereafter, rolling all of said neck to said predetermined constant radius until said free edge is in overlapping relation with the adjacent surface of said dome body whereby the major portion of said free edge is in contacting relation with said adjacent surface while the free edge of said spiral portion is spaced from said adjacent surface.
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |