Patent US3680743A successfully refreshed from Google Patents.
US3680743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety venting apparatus combined with an aerosol container
Assignee: Calspan Corp
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Filing: 1970-04-10
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Granted: 1972-08-01
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Expires: 1990-04-10
Abstract
Abstract An aerosol container combined with apparatus to relieve excessive interior pressures in the form of a fluted stab located adjacent a pressure deformable portion of the container such that upon deformation thereof the stab will make contact and pierce an opening therethrough.
Inventors
- 👤 Richard E Reinnagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:06
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/70
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
152 words
A safety venting apparatus for aerosol containers, comprising; A. a pressurized aerosol container having, 1. a body section, 2. a top wall section, and 3. a bottom wall section, B. at least a portion of said top wall section so constructed and arranged to deflect with respect to the remainder of said container in response to excessive pressures, C. an annular ring fitted onto said body section adjacent said top wall section, D. stab means comprising a plurality of sharp ended portions circumferentially arranged on said annular ring adjacent to and spaced from said portion of said top wall section such that said sharp ended portions pierce said portion of said top wall section upon deflection thereof to thereby vent said excessive pressure to the exterior of said container, and E. a dispensing valve mounted on said container actuable to normally deliver the contents of said container to a point of use.
Claim 2
Dependent Claim
152 words
A safety venting apparatus for aerosol containers, comprising; A. a pressurized aerosol container having, 1. a body section, 2. a top wall section, and 3. a bottom wall section, B. at least a portion of said top wall section so constructed and arranged to deflect with respect to the remainder of said container in response to excessive pressures, C. an annular ring fitted onto said body section adjacent said top wall section, D. stab means comprising a plurality of sharp ended portions circumferentially arranged on said annular ring adjacent to and spaced from said portion of said top wall section such that said sharp ended portions pierce said portion of said top wall section upon deflection thereof to thereby vent said excessive pressure to the exterior of said container, and E. a dispensing valve mounted on said container actuable to normally deliver the contents of said container to a point of use.
Claim 3
Dependent Claim
5 words
a top wall section, and
Claim 4
Dependent Claim
5 words
a top wall section, and
Claim 5
Dependent Claim
14 words
The apparatus according to claim 1, wherein said ring is an annular snap ring.
Claim 6
Dependent Claim
127 words
a bottom wall section, B. at least a portion of said top wall section so constructed and arranged to deflect with respect to the remainder of said container in response to excessive pressures, C. an annular ring fitted onto said body section adjacent said top wall section, D. stab means comprising a plurality of sharp ended portions circumferentially arranged on said annular ring adjacent to and spaced from said portion of said top wall section such that said sharp ended portions pierce said portion of said top wall section upon deflection thereof to thereby vent said excessive pressure to the exterior of said container, and E. a dispensing valve mounted on said container actuable to normally deliver the contents of said container to a point of use.
Claim 7
Dependent Claim
127 words
a bottom wall section, B. at least a portion of said top wall section so constructed and arranged to deflect with respect to the remainder of said container in response to excessive pressures, C. an annular ring fitted onto said body section adjacent said top wall section, D. stab means comprising a plurality of sharp ended portions circumferentially arranged on said annular ring adjacent to and spaced from said portion of said top wall section such that said sharp ended portions pierce said portion of said top wall section upon deflection thereof to thereby vent said excessive pressure to the exterior of said container, and E. a dispensing valve mounted on said container actuable to normally deliver the contents of said container to a point of use.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |