US3929012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for optimizing cure time of elastomeric articles
Assignee: Monsanto Co
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Filing: 1972-07-07
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Granted: 1975-12-30
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Expires: 1992-07-07
Abstract
Abstract Method and apparatus for determining the state of cure of an elastomeric article within a mold wherein a probe is embedded in the article, the energy required to move the probe in a determined mode is measured, and the energy measurement is related to the state of cure of the article.
Inventors
- 👤 Constantine E Anagnostopoulos
- 👤 Raleigh W Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:26
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/0288; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0662; B29D2030/0675; B29D2030/0677; B29K; B29K2021/00; B29L; B29L2030/00; G; G01; G01N; G01N2203/00; G01N2203/0058; G01N2203/0092
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
In a method of curing a staple elastomeric article under pressure within a mold wherein said article comprises at least one thick section and at least one thinner section and undergoes changes in modulus as curing progresses, the improvement which comprises the steps of embedding a slender probe in a thick section of said article, the tip of said probe being in the interior of said section, oscillating said tip embedded probe transversely at a frequency of from about 1 to about 1000 cycles per minute about a pivot line substantially perpendicular to a longitudinal plane of the probe, measuring the force required to oscillate said probe as curing progresses, opening the mold at a determined force and removing a vendible article.
Claim 2
Dependent Claim
122 words
In a method of curing a staple elastomeric article under pressure within a mold wherein said article comprises at least one thick section and at least one thinner section and undergoes changes in modulus as curing progresses, the improvement which comprises the steps of embedding a slender probe in a thick section of said article, the tip of said probe being in the interior of said section, oscillating said tip embedded probe transversely at a frequency of from about 1 to about 1000 cycles per minute about a pivot line substantially perpendicular to a longitudinal plane of the probe, measuring the force required to oscillate said probe as curing progresses, opening the mold at a determined force and removing a vendible article.
Claim 3
Dependent Claim
96 words
Apparatus for curing a pneumatic tire which comprises a tire curing mold and pressure means for confining the tire in the mold under pressure, a slender probe disposed in said mold the tip of which is adpated to penetrate the tire surface and terminate in the shoulder region thereof, drive means adapted to oscillate said probe transversely at a frequency within the range of about 1 to about 1000 cycles per minute about a pivot line substantially perpendicular to a longitudinal plane of the probe, and means for measuring the force required to oscillate said probe.
Claim 4
Dependent Claim
96 words
Apparatus for curing a pneumatic tire which comprises a tire curing mold and pressure means for confining the tire in the mold under pressure, a slender probe disposed in said mold the tip of which is adpated to penetrate the tire surface and terminate in the shoulder region thereof, drive means adapted to oscillate said probe transversely at a frequency within the range of about 1 to about 1000 cycles per minute about a pivot line substantially perpendicular to a longitudinal plane of the probe, and means for measuring the force required to oscillate said probe.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |