Patent US3942141A successfully refreshed from Google Patents.
US3942141A
Expired / Lapsed
US
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Flange
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1973-05-25
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Granted: 1976-03-02
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Expires: 1993-05-25
Abstract
Abstract A flange adapted to be arranged on a tube. A plurality of flange parts fit together to define a flange having a central opening for surrounding the outer perimeter of a tube. Each of the flange parts defines at least a portion of the central opening. Each flange part is provided on its surface portion which defines at least a portion of the central opening with at least one protrusion for engaging a corresponding groove in an associated tube in a form-fitting relationship.
Inventors
- 👤 Ernst Kaffenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:24
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/04; H01P1/042; B; B65; B65H; B65H49/00; B65H49/36; F; F16; F16B; F16B7/00; F16L; F16L23/00; F16L23/02; F16L23/032; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
226 words
A flange adapted to be arranged on the end of a tube for connecting the tube to a flange on the end of a further tube, said flange comprising in combination: two identical flange parts which fit together to define a single flange having a central opening whose periphery corresponds to the outer perimeter of a tube, each said flange part having an axial opening at least a portion of the periphery of which corresponds to the outer perimeter of the tube on which the flange is to be arranged, each said axial opening being larger in part than the outer perimeter of the tube on which said flange is to be arranged and through which the tube can pass so that each said flange part will surround the entire outer perimeter of the tube, said two flange parts fitting together in a mating arrangement along a plane transverse to the longitudinal axis of said central opening with said portion of the periphery of said axial opening of each said flange part defining a portion of the periphery of said central opening; at least one protrusion provided on the surface portion of each of said flange parts which defines a portion of said central opening for engaging a corresponding groove in a tube in a form fitting relationship; and means for connecting said flange parts together.
Claim 2
Dependent Claim
226 words
A flange adapted to be arranged on the end of a tube for connecting the tube to a flange on the end of a further tube, said flange comprising in combination: two identical flange parts which fit together to define a single flange having a central opening whose periphery corresponds to the outer perimeter of a tube, each said flange part having an axial opening at least a portion of the periphery of which corresponds to the outer perimeter of the tube on which the flange is to be arranged, each said axial opening being larger in part than the outer perimeter of the tube on which said flange is to be arranged and through which the tube can pass so that each said flange part will surround the entire outer perimeter of the tube, said two flange parts fitting together in a mating arrangement along a plane transverse to the longitudinal axis of said central opening with said portion of the periphery of said axial opening of each said flange part defining a portion of the periphery of said central opening; at least one protrusion provided on the surface portion of each of said flange parts which defines a portion of said central opening for engaging a corresponding groove in a tube in a form fitting relationship; and means for connecting said flange parts together.
Claim 3
Dependent Claim
25 words
A flange as defined in claim 1 wherein said protrusions lie in a plane which is perpendicular to the longitudinal axis of said central opening.
Claim 4
Dependent Claim
29 words
A flange as defined in claim 1 wherein said two flange parts are reverse images of one another with respect to the plane along which they are mutually arranged.
Claim 5
Dependent Claim
41 words
A flange as defined in claim 3 wherein said flange has a rectangular cross section in a plane parallel to the longitudinal axis through said central opening and said flange parts fit together along the diagonal of the rectangular cross section.
Claim 6
Dependent Claim
46 words
A flange as defined in claim 3 wherein said flange has a rectangular cross section in a plane parallel to the longitudinal axis through said central opening and each of said flange parts has at least one step in the plane of the rectangular cross section.
Claim 7
Dependent Claim
26 words
A flange as defined in claim 1 wherein at least one flange part has a recess on its frontal face adapted to accommodate a seal therein.
Claim 8
Dependent Claim
17 words
A flange as defined in claim 1 wherein said flange is a waveguide flange for a waveguide.
Claim 9
Dependent Claim
26 words
A flange as defined in claim 1 wherein said central opening is rectangular so that said flange can surround a tube having a rectangular outer shape.
Claim 10
Dependent Claim
26 words
A flange as defined in claim 1 wherein said central opening is elliptical so that said flange can surround a tube having an elliptical outer shape.
Claim 11
Dependent Claim
40 words
A flange as defined in claim 1 wherein at least one flange part has a recess on its surface portion which defines at least a portion of said central opening and said recess is adapted to accommodate a seal therein.
Claim 12
Dependent Claim
70 words
A flange as defined in claim 1 wherein said connecting means includes at least two bores provided in each of said flange parts, said bores being arranged parallel to the longitudinal axis through said central opening and disposed within said flange parts such that the bores on adjacent portions of said flange parts are aligned; and fastening bolts passing through said aligned bores so as to interconnect said flange parts.
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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) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |