US3933565A
Expired / Lapsed
US
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Method and apparatus for butt connection of plies formed of plastic deformable material, especially rubberized steel cord plies
Assignee: Semperit AG Holding
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Filing: 1973-11-19
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Granted: 1976-01-20
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Expires: 1993-11-19
Abstract
Abstract A method of, and apparatus for, the butt connection of plies formed of plastic deformable material, especially rubberized steel cord plies, wherein the cut surfaces of the plies to be connected are beveled or tapered parallel to one another, positioned so as to be mutually elevationally offset with respect to one another, and then joined together.
Inventors
- 👤 Gerhard Printz
- 👤 Ralf Haase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/42; B29C; B29C65/00; B29C65/78; B29C65/7802; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/116; B29C66/1162; B29C66/14; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4324; B29C66/70; B29C66/71; B29C66/72; B29C66/721; B29C66/7212; B29C66/7214; B29C66/72141; B29C66/80; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C65/02; B29D2030/421; B29D2030/427; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29L; B29L2030/00; B29L2030/003; B29L2031/00; B29L2031/709; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1075; Y10T156/1079
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
92 words
A method for the butt connection of plies formed of plastic deformable material, comprising the steps of beveling substantially parallel to one another cut surfaces of the plies which are to be interconnected, positioning such beveled cut surfaces of the plies so as to be in slight overlapping relationship with respect to one another and with the plies located in different substantially horizontal planes, and then connectably joining together the plies by the application of a force to said plies, said force being exerted at an inclination with respect to said plies.
Claim 2
Independent Claim
92 words
A method for the butt connection of plies formed of plastic deformable material, comprising the steps of beveling substantially parallel to one another cut surfaces of the plies which are to be interconnected, positioning such beveled cut surfaces of the plies so as to be in slight overlapping relationship with respect to one another and with the plies located in different substantially horizontal planes, and then connectably joining together the plies by the application of a force to said plies, said force being exerted at an inclination with respect to said plies.
Claim 3
Dependent Claim
70 words
The method as defined in claim 1, in particular for the connection of rubberized steel cord plies, wherein the plies to be interconnected are cut at respective surfaces at a predetermined angle, wherein at one cut surface the marginal cord thereof is partially exposed, whereas at the other cut surface the other marginal cord thereof remains covered by rubber of approximately the width of the intermediate space between two cords.
Claim 4
Dependent Claim
16 words
The method as defined in claim 2, wherein the angle of cutting amounts to about 60°.
Claim 5
Dependent Claim
43 words
The method as defined in claim 1, wherein the cut surfaces of the plies to be interconnected, prior to being joined together by the applied force, are linearly aligned and essentially parallel to one another, and then fixing the plies in this position.
Claim 6
Dependent Claim
48 words
The method as defined in claim 1, wherein the cut surfaces of the plies to be interconnected, prior to their being joined together, are mutually positioned in slightly overlapping relation with respect to one another by an amount which is slightly less than the thickness of one ply.
Claim 7
Dependent Claim
73 words
The method as defined in claim 1, in particular for the connection of rubberized steel cord plies, wherein the cut surfaces of the plies to be interconnected, prior to their being joined together, are positioned such that they slightly overlap one another such that the centers of both marginal cords which come to lie at the joint adjacent one another, and measured parallel to the plies, possess a small spacing from one another.
Claim 8
Dependent Claim
19 words
The method as defined in claim 6, wherein said small spacing amounts to about one-half of the cord diameter.
Claim 9
Dependent Claim
56 words
The method as defined in claim 6, wherein the force employed during joining together of the plies which is exerted at an inclination with regard to the plies constitutes a resultant force having a first force component which acts substantially parallel to the plies and a second force component which acts substantially perpendicular to the plies.
Claim 10
Dependent Claim
65 words
The method as defined in claim 8, wherein the overlapping of the plies and the angle at which the force required for joining together of the plies impinges against the joint are accommodated to one another such that both marginal cords can glide along one another, so that between such marginal cords there can flow into one another, rubber material which surrounds such marginal cords.
Claim 11
Dependent Claim
78 words
The method as defined in claim 1, in particular for the connection of rubberized steel cord plies, wherein the plies to be interconnected are cut at respective surfaces at a predetermined angle, wherein at one cut surface of one of the cut plies the marginal cord thereof is only slightly covered by the rubber of such rubberized steel cord ply, whereas at the other cut surface of the other cut ply the marginal cord thereof is partially exposed.
Claim 12
Dependent Claim
82 words
The method as defined in claim 1, in particular for the connection of rubberized steel cord plies, wherein the plies to be interconnected are cut at respective surfaces at a predetermined angle, wherein at one cut surface of one of the plies the marginal cord thereof is only slightly covered by rubber, whereas at the other cut surface of the other cut ply the marginal cord thereof remains covered by rubber of approximately the width of the intermediate space between two cords.
Claim 13
Dependent Claim
67 words
The method as defined in claim 1, in particular for the connection of rubberized steel cord plies, wherein the plies to be interconnected are cut at respective surfaces at a predetermined angle, wherein at one cut surface of one of the plies the marginal cord thereof is partially exposed, whereas at the other cut surface of the other cut ply the marginal cord thereof is partially exposed.
Claim 14
Dependent Claim
30 words
The method as defined in claim 1, wherein the beveled cut surfaces of the plies are interconnected solely through the application of the inclined directed force applied to said plies.
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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |