Patent US3895830A successfully refreshed from Google Patents.
US3895830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conduit adapter
Assignee: AES ACQUISITION Co A CORP OF OH
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Filing: 1974-04-01
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Granted: 1975-07-22
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Expires: 1994-04-01
Abstract
Abstract Adapters for coupling multi-conduit cavity ceramic conduits of square conduit cross section to a plurality of individual circular cross section conduit pipes of the same or different cross sectional areas. The adapters are of multi-section construction formed of strong but relatively light weight plastic material, the adapter sections having interfitting keys and keyways which prevent sliding movement of the sections relatively to one another. Sockets are molded in one end of the adapter sections to receive the ends of the circular conduit pipes, and alignment pin sockets are molded in the opposite ends of the adapter sections to receive alignment pins which also engage the ceramic conduits to align the latter with the adapter end face. The adapter sections are made to provide expandability of the number of conduits which can be coupled, and a tapered form of adapter is disclosed for intercoupling conduits of different sizes. The adapter sections after installation are secured together by banding, and the assembly is encapsulated.
Inventors
- 👤 John R Madlem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:15
CPC Classifications
F; F16; F16L; F16L39/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
288 words
An adapter for joining a conduit of substantially square internal open cross section to a conduit of substantially circular internal open cross section comprising in combination, a pair of adapter outer half sections each of which has one open end of semi-circular shape and the opposite open end of semisquare shape, said one open end and said opposite open end being spaced apart with an intervening wall extending therebetween, the inside surface of said intervening wall changing gradually in cross sectional shape from semi-circular to semi-square to thereby form a half conduit, said intervening wall section of each adapter half section terminating along its length from said one open end to said opposite open end in a pair of faces in surface engagement with the pair of faces of the other adapter half section, at least one of said pair of faces of one adapter half section having at least one key element extending therefrom toward the surface engaging face of the other adapter half section, and the face of the other adapter half section toward which said at least one key element extends being formed with a key element receiving recess of proper shape to receive said at least one key element, said adapter half sections being placed with their faces engaged and said key element disposed in said key element receiving recess to thereby form a conduit of circular cross sectional opening at one end which transitions through the length of the adapter to substantially a square cross sectional opening at the other end and in which the assembled adapter halves are restrained from relative sliding movement by said interengaged key element and key element receiving recess, and means holding the adapter sections in assembled relationship.
Claim 2
Dependent Claim
288 words
An adapter for joining a conduit of substantially square internal open cross section to a conduit of substantially circular internal open cross section comprising in combination, a pair of adapter outer half sections each of which has one open end of semi-circular shape and the opposite open end of semisquare shape, said one open end and said opposite open end being spaced apart with an intervening wall extending therebetween, the inside surface of said intervening wall changing gradually in cross sectional shape from semi-circular to semi-square to thereby form a half conduit, said intervening wall section of each adapter half section terminating along its length from said one open end to said opposite open end in a pair of faces in surface engagement with the pair of faces of the other adapter half section, at least one of said pair of faces of one adapter half section having at least one key element extending therefrom toward the surface engaging face of the other adapter half section, and the face of the other adapter half section toward which said at least one key element extends being formed with a key element receiving recess of proper shape to receive said at least one key element, said adapter half sections being placed with their faces engaged and said key element disposed in said key element receiving recess to thereby form a conduit of circular cross sectional opening at one end which transitions through the length of the adapter to substantially a square cross sectional opening at the other end and in which the assembled adapter halves are restrained from relative sliding movement by said interengaged key element and key element receiving recess, and means holding the adapter sections in assembled relationship.
Claim 3
Dependent Claim
68 words
An adapter as described in claim 1 wherein at least one of said adapter halves is provided with first alignment means for close fittingly aligning a conduit of substantially square internal cross section with the adapter end of the same shape, and is provided with second alignment means for close fittingly aligning a conduit of substantially circular internal cross section with the adapter end of the same shape.
Claim 4
Dependent Claim
71 words
An adapter as described in claim 2 wherein said first alignment means comprises a plurality of alignment pin receiving apertures formed in the adapter end characterized by the substantially square cross sectional opening, said pin receiving apertures being oriented to receive and hold alignment pins so that the pins extend in longitudinal extension of said adapter for aligning engagement with the end of a conduit of substantially square cross sectional opening.
Claim 5
Dependent Claim
104 words
An adapter as described in claim 2 wherein said second alignment means comprises an open ended socket recessed for a distance into said adapter from the adapter end characterized by the circular cross sectional opening, one open end of said socket aligning with the open circular cross section end of said adapter conduit and the other open end of said socket opening through the end of said adapter, said socket being formed to receive a conduit of circular internal open cross section and terminating in an abutment within the body of said adapter against which the socket received conduit is adapted to be abutTed.
Claim 6
Dependent Claim
119 words
An adapter as described in claim 2 wherein at least two of the non-apposed faces of said pair of adapter half sections each have at least one key element extending therefrom toward the apposed engaging faces of the other adapter half section, and the said apposed faces toward which said key elements extend are formed with key element receiving recesses of proper shape to receive said key elements, and wherein each said adapter outer half section is formed with a side by side plurality of said half conduits to thereby form with the other adapter outer half section a plurality of adapter conduits extending in side by side relationship from one end of said adapter to the other end.
Claim 7
Dependent Claim
41 words
An adapter as described in claim 5 wherein the areas of the circular cross sectional openings at one end of said adapter are different from the areas of the substantially square cross sectional openings at the opposide end of said adapter.
Claim 8
Dependent Claim
104 words
An adapter as described in claim 6 wherein said second alignment means comprises an open ended socket recessed for a distance into said adapter from the adapter end characterized by the circular cross sectional opening, one open end of said socket aligning with the open circular cross section end of said adapter conduit and the other open end of said socket opening through the end of said adapter, said socket being formed to receive a conduit of circular internal open cross section and terminating in an abutment within the body of said adapter against which the socket received conduit is adapted to be abutted.
Claim 9
Dependent Claim
71 words
An adapter as described in claim 7 wherein said first alignment means comprises a plurality of alignment pin receiving apertures formed in the adapter end characterized by the substantially square cross sectional opening, said pin receiving apertures being oriented to receive and hold alignment pins so that the pins extend in longitudinal extension of said adapter for aligning engagement with the end of a conduit of substantially square cross sectional opening.
Claim 10
Dependent Claim
89 words
An adapter as described in claim 5 further including at least one adapter intermediate section assembled with and between said adapter outer half sections, said at least one intermediate section being formed so that the portion thereof which faces said one adapter outer half section is formed in the complemental configuration to said one adapter outer half section, and the portion of said at least one intermediate section which faces said other adapter outer half section is formed in the complemental configuration to said other adapter outer half section.
Claim 11
Dependent Claim
68 words
An adapter as described in claim 1 wherein at least two of the non-apposed faces of said pair of adapter half sections each have at least one key element extending therefrom toward the apposed engageable faces of the other adapter half section, and the said apposed faces toward which said key elements extend are formed with key element receiving recesses of proper shape to receive said key elements.
Claim 12
Dependent Claim
57 words
An adapter as described in claim 1 wherein each said adapter outer half section is formed with a side by side plurality of said half conduits to thereby form with the other adapter outer half section a plurality of adapter conduits extending in side by side relationship from one end of said adapter to the other end.
Claim 13
Dependent Claim
65 words
An adapter as described in claim 11 wherein said plurality of adapter conduits extending in side by side relationship are each characterized by a longitudinally extending central axis, wherein the central axis of one of said conduits is designated as a reference axis, and wherein the central axis of at least one of the remaining plurality of conduits is non-parallel to the said reference axis.
Claim 14
Dependent Claim
41 words
An adapter as described in claim 1 wherein the area of the circular cross sectional opening at one end of said adapter is different from the area of the substantially square cross sectional opening at the opposite end of said adapter.
Claim 15
Dependent Claim
121 words
An adapter as described in claim 1 further inCluding at least one adapter intermediate section assembled with and between said adapter outer half sections, said at least one intermediate section being formed so that the portion thereof which faces said one adapter outer half section is formed in the complemental configuration to said one adapter outer half section, and the portion of said at least one intermediate section which faces said other adapter outer half section is formed in the complemental configuration to said other adapter outer half section, whereby said adapter outer half sections and at least one intermediate section form an adapter having at least two transition conduits extending therethrough from one end to the other of said adapter.
Claim 16
Dependent Claim
198 words
An adapter as described in claim 1 wherein each said adapter outer half section is formed with a side by side plurality of said half conduits to thereby form with the other adapter outer half section a plurality of adapter conduits extending in side by side relationship from one end of said adapter to the other end, wherein said plurality of adapter conduits extending in side by side relationship are each characterized by a longitudinally extending central axis, wherein the central axis of one of said conduits is designated as a reference axis, and wherein the central axis of at least one of the remaining plurality of conduits is non-parallel to the said reference axis, and further including at least one adapter intermediate section assembled with and between said adapter outer half sections, said at least one intermediate section being formed so that the portion thereof which faces said one adapter outer half section is formed in the complemental configuration to said one adapter outer half section, and the portion of said at least one intermediate section which faces said other adapter outer half section is formed in the complemental configuration to said other adapter outer half section.
Claim 17
Dependent Claim
63 words
An adapter as described in claim 15 wherein said plurality of adapter conduits extending in side by side relationship are each characterized by a longitudinally extending central axis, wherein the central axis of one of said conduits is designated as a reference axis, and wherein the central axes of all of the remaining plurality of conduits are non-parallel to the said reference axis.
Claim 18
Dependent Claim
25 words
An adapter as described in claim 16 wherein the adapter conduit characterized by said reference axis is physically located at one corner of said adapter.
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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |