Patent US3700365A successfully refreshed from Google Patents.
US3700365A
Expired / Lapsed
US
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Apparatus for continuously vulcanizing endless belts
Assignee: Goodrich Corp
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Filing: 1970-09-21
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Granted: 1972-10-24
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Expires: 1990-09-21
Abstract
Abstract A machine for simultaneously curing a plurality of elastomeric belts while passing over a heated rotary drum. The belts are individually uniformly tensioned by individually movable tension idlers each actuated by a separate fluid pressure actuated cylinder connected to a common source of predetermined fluid pressure. A separate endless metal band is provided for individually pressing each of the belts against the drum with the bands each passing over an individual movable tension idler similar to that used for the belts for maintaining each of the bands at a predetermined uniform tension.
Inventors
- 👤 Alvin W Spicer
- 👤 Anselm Talalay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:13
CPC Classifications
B; B29; B29D; B29D29/00; B29D29/10; B29K; B29K2021/00; Y; Y10; Y10S; Y10S425/00; Y10S425/818
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
136 words
An apparatus for vulcanizing a plurality of endless elastomeric belts comprising: a. heated mold means including a member having a plurality of recesses adapted to simultaneously receive portions of each of said belts respectively in one of said recesses and a plurality of presser means each having a portion thereof supported for releasable contact with one of said belts while same are in said recesses; b. means operatively connected to said presser means in a manner causing the latter to exert a predetermined common force upon the portion of each belt contacted thereby; c. a plurality of means for individually tensioning each of said belts to a common tension while in contact with said mold means; and d. means for advancing successive portions of each of said belts to and from contact with said mold means.
Claim 2
Independent Claim
136 words
An apparatus for vulcanizing a plurality of endless elastomeric belts comprising: a. heated mold means including a member having a plurality of recesses adapted to simultaneously receive portions of each of said belts respectively in one of said recesses and a plurality of presser means each having a portion thereof supported for releasable contact with one of said belts while same are in said recesses; b. means operatively connected to said presser means in a manner causing the latter to exert a predetermined common force upon the portion of each belt contacted thereby; c. a plurality of means for individually tensioning each of said belts to a common tension while in contact with said mold means; and d. means for advancing successive portions of each of said belts to and from contact with said mold means.
Claim 3
Dependent Claim
85 words
The apparatus defined in claim 1 wherein said belt tensioning means includes: a. a plurality of pulleys each having the outer periphery thereof rotatable about its axis adapted to contact the inner periphery of one of the belts to be vulcanized, b. an individual support for the rotational axis of each pulley mounted for movement perpendicularly of the axis, and c. a plurality of actuators each including a movable operative portion connected respectively to each of the said movable supports to effect individual movement thereof.
Claim 4
Dependent Claim
24 words
The apparatus defined in claim 2 wherein each of said actuators is fluid-pressure operated and is connected to a common source of fluid pressure.
Claim 5
Dependent Claim
47 words
The apparatus defined in claim 2 wherein a. each of said movable supports comprises a slidably mounted plate portion, and b. each of said pulleys comprises an annular peripheral ring rotatably mounted on said slidable plate with a belt-receiving groove on the outer periphery of the ring.
Claim 6
Dependent Claim
35 words
The apparatus defined in claim 4 wherein said actuators each comprise fluid pressure actuator having a movable portion and each of the said movable portions is connected respectively to one of the said slidable plates.
Claim 7
Dependent Claim
22 words
The apparatus defined in claim 5 wherein each of said fluid pressure actuators is connected to a common source of fluid pressure.
Claim 8
Dependent Claim
31 words
The apparatus defined in claim 1 wherein: said means for exerting a force on said presser means includes individual portions thereon, each operatively connected respectively to one of said presser means.
Claim 9
Dependent Claim
49 words
The apparatus as defined in claim 7 wherein said presser means are individually movable and said means for exerting a force on each of said presser means includes separately operative means for each of said presser means operative for adjustment of the pressure exerted upon the belt contacted thereby.
Claim 10
Dependent Claim
95 words
The apparatus defined in claim 7 wherein: a. said member of said mold means includes a rotatable drum the periphery of which has a plurality of circumferential grooves constituting said recesses, and b. each of said presser means is an endless bands of substantially inextensible material each mounted to orbit in a path a portion of which is arcuate and concentric with a part of the periphery of said drum with each of said bands contacting and exerting pressure on one of the belts being vulcanized while the latter is in contact with said drum.
Claim 11
Dependent Claim
22 words
The apparatus as defined in claim 9 further comprising means to move each of said bands simultaneously to and from belt-contacting positions.
Claim 12
Dependent Claim
27 words
The apparatus defined in claim 9 wherein said drum includes means for sequentially heating and cooling portions of said drum during a predetermined arc of drum rotation.
Claim 13
Dependent Claim
62 words
The apparatus defined in claim 11 wherein: a. said drum includes a plurality of arcuate fluid-receiving Chambers formed therein spaced adjacent the periphery thereof with a port communicating with each of said chambers; b. said heating and cooling means includes fluid source means sequentially connectable to each of said ports for selectively circulating heating and cooling fluid through each of said chambers.
Claim 14
Dependent Claim
27 words
The apparatus defined in claim 12 wherein said fluid source means comprises distribution valve means including a non-rotatable portion mounted concentric with the axis of said drum.
Claim 15
Dependent Claim
37 words
The apparatus defined in claim 12 wherein said drum includes: a plurality of arcuately extending segments having the circumferentially adjacent edges thereof interconnected with each segment having at least one of said fluid receiving chambers formed therein.
Claim 16
Dependent Claim
45 words
The apparatus defined in claim 14 wherein each of said segments has a plurality of individual fluid chambers formed therein with a common manifold provided thereon communicating with each of said chambers and with one of said port means provided in each of said manifolds.
Claim 17
Dependent Claim
63 words
The apparatus as defined in claim 9 wherein the said means connected to said presser means comprises: a. plurality of pulleys each having the outer periphery thereof in contact with the interior of one of said bands; b. an individual support for the rotational axis of each pulley movable perpendicular to the axis thereof; and c. means to individually move each pulley support.
Claim 18
Dependent Claim
43 words
The apparatus defined in claim 16 wherein said means for individually moving said pulley supports comprises a separate fluid pressure actuator for each said pulley support with each actuator including a movable portion connected respectively to one each to the said movable supports.
Claim 19
Dependent Claim
23 words
The apparatus defined in claim 17 wherein each of the said fluid pressure actuators is connected to a common source of fluid pressure.
Claim 20
Dependent Claim
100 words
The apparatus defined in claim 16 wherein said means to move said bands simultaneously includes: a. two sets of band-supporting pulleys; b. means mounting said sets of pulleys for movement to and from locations adjacent said drum with one set of pulleys arcuately spaced about the drum from the other so that when the said sets of pulleys are adjacent the drum portions of the bands are in pressure-applying contact with the belts on said drum; and c. means operably connected to each of said sets of pulleys for simultaneously moving the said sets toward or away from said drum.
Claim 21
Dependent Claim
49 words
The apparatus as defined in claim 16 wherein a. each of the said pulley supports comprises a slidably mounted plate portion; and b. each of said pulleys comprises an annular peripheral ring rotatably mounted on said slidable plate with a band-receiving groove on the outer periphery of the ring.
Claim 22
Dependent Claim
14 words
The apparatus defined in claim 9 further comprising power means for rotating said drum.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |