US3852008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cooling tires during post-inflation
Assignee: Uniroyal Inc
•
Filing: 1973-07-26
•
Granted: 1974-12-03
•
Expires: 1993-07-26
Abstract
Abstract Apparatus and a method for cooling a tire during a postinflation treatment utilizing aspiration jets for discharging air internally of the tire and for entraining the inflation air of the tire to cause turbulent air flow against the internal surface of the tire and against tire-supporting means which is watercooled to remove heat from the internal air of the tire. This invention results in tires which are at least as uniform, and generally more uniform, than externally jet air-cooled tires.
Inventors
- 👤 D Shichman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:42
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0633; B29D30/0643; B29C; B29C35/00; B29C35/16; B29C2035/1616; B29C2035/1658; B29C71/00; B29C71/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
190 words
Apparatus for post-mold cycle cooling a pneumatic tire, after the removal of the tire from the mold and during the course of a post-inflation treatment, comprising: means for supporting a tire to be cooled; means for inflating the tire; means for cooling said tire-supporting means; means for discharging gas into the inflated tire comprising a gas-intake passageway, a gas-discharge passageway, and orifice means between said passageways for establishing gas flow communication therebetween, said gas-discharge passageway comprising a gas-discharge aperture and a lateral wall between said orifice means and said gas-discharge aperture, said lateral wall having a gas-intake aperture therein; means for supplying gas at higher pressure than the gas in the tire to said gas-intake passageway of said gas-discharging means to cause gas flow through said orifice means effective to induce gas flow through said gas-intake aperture of said lateral wall and through said gas-discharge passageway against the interior surface of the tire and against said tiresupporting means to transfer heat from the tire to the gas therein and from the gas to said tire-supporting means; and means for preventing a pressure build-up above a predetermined value inside the tire.
Claim 2
Dependent Claim
190 words
Apparatus for post-mold cycle cooling a pneumatic tire, after the removal of the tire from the mold and during the course of a post-inflation treatment, comprising: means for supporting a tire to be cooled; means for inflating the tire; means for cooling said tire-supporting means; means for discharging gas into the inflated tire comprising a gas-intake passageway, a gas-discharge passageway, and orifice means between said passageways for establishing gas flow communication therebetween, said gas-discharge passageway comprising a gas-discharge aperture and a lateral wall between said orifice means and said gas-discharge aperture, said lateral wall having a gas-intake aperture therein; means for supplying gas at higher pressure than the gas in the tire to said gas-intake passageway of said gas-discharging means to cause gas flow through said orifice means effective to induce gas flow through said gas-intake aperture of said lateral wall and through said gas-discharge passageway against the interior surface of the tire and against said tiresupporting means to transfer heat from the tire to the gas therein and from the gas to said tire-supporting means; and means for preventing a pressure build-up above a predetermined value inside the tire.
Claim 3
Dependent Claim
27 words
Apparatus in accordance with claim 1 in which said tire-supporting means has an internal cavity and in which said cooling means supplies cooling water to said cavity.
Claim 4
Dependent Claim
30 words
Apparatus in accordance with claim 1 in which said orifice means has an orifice therein and in which said gas-discharge passageway is of substantially larger cross-sectional area than said orifice.
Claim 5
Dependent Claim
34 words
Apparatus in accordance with claim 1 in which said means for discharging gas into the inflated tire comprises a plurality of similar-gas-discharging means spaced on said tire-supporting means around the circumference of the tire.
Claim 6
Dependent Claim
42 words
Apparatus in accordance with claim 1 in which said tire supporting means comprises a tire-supporting member having a bead seat and guiding members for guiding the tire bead onto the bead seat in which said gas-discharging means extends through said guiding members.
Claim 7
Dependent Claim
26 words
Apparatus in accordance with claim 1 in which said orifice means has a circular orifice of a diameter in the range of 0.010 to 0.030 inch.
Claim 8
Dependent Claim
58 words
Apparatus in accordance with claim 1 in which said means for inflating the tire inflates the tire at a pressure in the range of 10 to 50 pounds per square inch and in which said means for supplying gas at higher pressure supplies air at a pressure in the range of 20 to 100 pounds per square inch.
Claim 9
Dependent Claim
38 words
Apparatus in accordance with claim 1 in which said means for supplying gas at higher pressure than the gas in the tire supplies air at a pressure which causes airflow through said orifice means at approximately sonic velocity.
Claim 10
Dependent Claim
187 words
Apparatus for post-mold cycle cooling a pneumatic tire, after the removal of the tire from the mold and during the course of a post-inflation treatment, comprising: means for inflating a tire to be cooled; means for cooling the gas in the tire; means for discharging gas into the inflated tire comprising a gas-intake passageway, a gas-discharge passageway, and orifice means between said passageways for establishing gas flow communication therebetween, said gas-discharge passageway comprising a gas-discharge aperture and a lateral wall between said orifice means and said gas-discharge aperture, said lateral wall having a gas-intake aperture therein; means for supplying gas at higher pressure than the gas in the tire to said gas-intake passageway of said gas-discharging means to cause gas flow through said orifice means effective to induce gas flow through said gas-intake aperture of said lateral wall and through said gas-discharge passageway against the interior surface of the tire and against said cooling means to transfer heat from the tire to the gas therein and from the gas to said cooling means; and means for preventing a pressure build-up above a predetermined value inside the tire.
Claim 11
Dependent Claim
187 words
Apparatus for post-mold cycle cooling a pneumatic tire, after the removal of the tire from the mold and during the course of a post-inflation treatment, comprising: means for inflating a tire to be cooled; means for cooling the gas in the tire; means for discharging gas into the inflated tire comprising a gas-intake passageway, a gas-discharge passageway, and orifice means between said passageways for establishing gas flow communication therebetween, said gas-discharge passageway comprising a gas-discharge aperture and a lateral wall between said orifice means and said gas-discharge aperture, said lateral wall having a gas-intake aperture therein; means for supplying gas at higher pressure than the gas in the tire to said gas-intake passageway of said gas-discharging means to cause gas flow through said orifice means effective to induce gas flow through said gas-intake aperture of said lateral wall and through said gas-discharge passageway against the interior surface of the tire and against said cooling means to transfer heat from the tire to the gas therein and from the gas to said cooling means; and means for preventing a pressure build-up above a predetermined value inside the tire.
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |