US3900941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of installing an expandible sleeve
Assignee: Day International Inc
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Filing: 1974-02-08
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Granted: 1975-08-26
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Expires: 1994-02-08
Abstract
Abstract An apparatus for and method of installing an expandible resilient sleeve on an associated cylindrical support are provided and such apparatus comprises a tapered mandrel having a longitudinal axis and having fluid passage means therein at a plurality of locations along the axis and means for selectively introducing a fluid under pressure to the passage means at each of the locations.
Inventors
- 👤 Vernon D Browning
- 👤 Mayo B Tell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:12
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/28; B23; B23P; B23P11/00; B23P11/02; B23P11/022; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/53; Y10T29/53657
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
183 words
An apparatus for installing an expandible sleeve on an associated cylindrical support comprising, a tapered mandrel having small and large diameter ends and a longitudinal axis and having fluid passage means therein at a plurality of locations along said axis, and means for selectively introducing fluid under pressure to the passage means at each of said locations, said tapered mandrel having a tubular extension extending from its large diameter end, said tubular extension being adapted to receive said associated cylindrical support therewithin, said tapered mandrel being adapted to receive an end portion of said sleeve concentrically around said small diameter end whereupon said means for selectively introducing said fluid is operated to introduce fluid under pressure to a first of said locations causing partial expansion of said sleeve and allowing axial sliding movement of said sleeve to a next one of said locations whereupon said means for selectively introducing fluid is again operated to introduce fluid under pressure to said next location thereby causing further expansion of said sleeve and again allowing axial sliding movement of said sleeve toward said large diameter end.
Claim 2
Independent Claim
183 words
An apparatus for installing an expandible sleeve on an associated cylindrical support comprising, a tapered mandrel having small and large diameter ends and a longitudinal axis and having fluid passage means therein at a plurality of locations along said axis, and means for selectively introducing fluid under pressure to the passage means at each of said locations, said tapered mandrel having a tubular extension extending from its large diameter end, said tubular extension being adapted to receive said associated cylindrical support therewithin, said tapered mandrel being adapted to receive an end portion of said sleeve concentrically around said small diameter end whereupon said means for selectively introducing said fluid is operated to introduce fluid under pressure to a first of said locations causing partial expansion of said sleeve and allowing axial sliding movement of said sleeve to a next one of said locations whereupon said means for selectively introducing fluid is again operated to introduce fluid under pressure to said next location thereby causing further expansion of said sleeve and again allowing axial sliding movement of said sleeve toward said large diameter end.
Claim 3
Dependent Claim
37 words
An apparatus as set forth in claim 1 in which said fluid passage means comprises air passage means and said means for selectively introducing comprises a movable air manifold and means supporting said manifold within said mandrel.
Claim 4
Dependent Claim
36 words
An apparatus as set forth in claim 2 in which said means for selectively introducing comprises an air valve operatively connected to said movable air manifold and means for supplying air to said valve and manifold.
Claim 5
Dependent Claim
43 words
An apparatus as set forth in claim 2 in which said means supporting said manifold within said mandrel comprises means rotatably supporting said manifold whereby said air manifold is movable by rotation thereof in an indexing manner to a plurality of preselected positions.
Claim 6
Dependent Claim
19 words
An apparatus as set forth in claim 2 in which said tapered mandrel has a substantially frustoconical outside configuration.
Claim 7
Dependent Claim
63 words
An apparatus as set forth in claim 5 in which said air Passage means comprises first air passage means adjacent said small diameter end and second air passage means adjacent said large diameter end, said first air passage means comprising a substantially radially extending passage through said mandrel and a circumferential groove provided in said mandrel and communicating with said radially extending passage.
Claim 8
Dependent Claim
50 words
An apparatus as set forth in claim 6 in which said second air passage means comprises a substantially longitudinal passage through a portion of said mandrel and conduit means for placing said longitudinal passage in flow communication with the outer periphery of said frustoconical mandrel adjacent said large diameter end.
Claim 9
Dependent Claim
28 words
An apparatus as set forth in claim 7 in which said conduit means comprises a roll pin having an open slot therein extending along the entire length thereof.
Claim 10
Dependent Claim
38 words
An apparatus as set forth in claim 7 in which said manifold has a tubular portion disposed within said mandrel and said means supporting said mandrel comprises cylindrical surface means in said mandrel rotatably supporting said tubular portion.
Claim 11
Dependent Claim
49 words
An apparatus as set forth in claim 9 in which said tubular portion has a cylindrical outside surface terminating in a flat end closure, said flat end closure having a longitudinally extending bore which is adapted to be aligned with said longitudinal passage of said second air passage means.
Claim 12
Dependent Claim
34 words
An apparatus as set forth in claim 10 in which said tubular portion also has a radially extending bore therein adapted to be aligned with said radially extending passage of said first passage means.
Claim 13
Independent Claim
136 words
A method of installing an expandible resilient sleeve on an associated cylindrical support comprising the steps of, placing said sleeve concentrically around a small diameter end portion of a tapered mandrel having small and large diameter ends and having a longitudinal axis and also having fluid passage means therein at a plurality of locations along said axis, selectively introducing fluid under pressure to the passage means at a first of said locations causing partial expansion of said sleeve, axially sliding said sleeve along said mandrel toward said large diameter end to another one of said locations, selectively introducing fluid under pressure to the passage means at said other location again causing partial expansion of said sleeve, and again axially sliding said sleeve along said mandrel over said large diameter end and concentrically around said cylindrical support.
Claim 14
Independent Claim
136 words
A method of installing an expandible resilient sleeve on an associated cylindrical support comprising the steps of, placing said sleeve concentrically around a small diameter end portion of a tapered mandrel having small and large diameter ends and having a longitudinal axis and also having fluid passage means therein at a plurality of locations along said axis, selectively introducing fluid under pressure to the passage means at a first of said locations causing partial expansion of said sleeve, axially sliding said sleeve along said mandrel toward said large diameter end to another one of said locations, selectively introducing fluid under pressure to the passage means at said other location again causing partial expansion of said sleeve, and again axially sliding said sleeve along said mandrel over said large diameter end and concentrically around said cylindrical support.
Claim 15
Dependent Claim
29 words
A method as set forth in claim 12 in which said placing step comprises placing said sleeve concentrically around a small diameter end portion of a substantially frustoconical mandrel.
Claim 16
Dependent Claim
29 words
A method as set forth in claim 13 in which said steps of selectively introducing fluid under pressure are defined by the steps of selectively introducing air under pressure.
Claim 17
Dependent Claim
26 words
A method as set forth in claim 14 in which said steps of axially sliding said sleeve along said mandrel comprise manually axially sliding said sleeve.
Claim 18
Dependent Claim
58 words
A method as set forth in claim 14 in which said placing step comprises placing said sleeve concentrically around a portion of a mandrel having a tubular extension extending from its large diameter end and comprising the further step of arranging said cylindrical support concentrically within said tubular extension to facilitate axial sliding movement of said sleeve thereover.
Claim 19
Dependent Claim
32 words
A method as set forth in claim 16 and comprising the further step of moving said mandrel and support apart while holding said sleeve and support with associated ends in aligned relation.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |