US3707758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation for mounting sealing rings and the like, especially for radioactive enclosures
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1970-04-16
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Granted: 1973-01-02
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Expires: 1990-04-16
Abstract
Abstract An installation for mounting extensible rings and comprising a tool for inserting a ring up to the collar of an enclosure at the extremity of a passageway which provides access to said enclosure and for producing the movement of extension of the ring against the collar. The tool comprises a tubular frame which can be temporarily fixed in a predetermined position within the passageway and two concentric tubular elements placed within the frame, said elements being displaceable by two actuating devices. One device produces the simultaneous and axial displacement of both tubular elements within the tubular frame. The other device produces the axial displacement of one tubular element with respect to the other in combination with gripping members which are carried by one of the tubular elements, said gripping members being moved in a substantially radial direction as a result of the relative axial displacements of the two tubular elements.
Inventors
- 👤 E Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:53
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/0028; B25B27/14; B25B27/20; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53657
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
146 words
An installation for mounting extensible rings including a tool for inserting a ring up to an enclosure collar at the extremity of a passageway providing access to the enclosure and for movement of extension of said ring against said collar, said tool comprising a tubular frame fixed within said passageway, two concentric tubular elements inside said tubular frame, first actuating means for simultaneously and axially displacing both of said tubular elements within said frame, second actuating means for axial displacement of one of said tubular elements with respect to the other of said tubular elements, gripping members having a plurality of holding heads, link arms connecting said members to one of said tubular elements and means for connecting said link arms to the other of said tubular elements, said gripping members being urged in a radial direction upon said relative axial displacement of said tubular elements.
Claim 2
Dependent Claim
146 words
An installation for mounting extensible rings including a tool for inserting a ring up to an enclosure collar at the extremity of a passageway providing access to the enclosure and for movement of extension of said ring against said collar, said tool comprising a tubular frame fixed within said passageway, two concentric tubular elements inside said tubular frame, first actuating means for simultaneously and axially displacing both of said tubular elements within said frame, second actuating means for axial displacement of one of said tubular elements with respect to the other of said tubular elements, gripping members having a plurality of holding heads, link arms connecting said members to one of said tubular elements and means for connecting said link arms to the other of said tubular elements, said gripping members being urged in a radial direction upon said relative axial displacement of said tubular elements.
Claim 3
Dependent Claim
91 words
An installation in accordance with claim 1, wherein the enclosure collar is provided with a bearing surface for said ring in the fastening position thereof, said bearing surface being set back towards the exterior with respect to the peripheral surface of the access passageway and to a distance which is sufficient to ensure that the internal extension circle of the ring in the fastening position thereof has a larger diameter than the diameter of said passageway so that the ring is thus protected by means of an annular shoulder after assembly.
Claim 4
Dependent Claim
44 words
An installation in accordance with claim 1, wherein said installation comprises shoes which can be fitted on the gripping members of said tool so as to thrust an existing ring up to a position of pre-ejection prior to placing a new ring in position.
Claim 5
Dependent Claim
36 words
An installation in accordance with claim 1, wherein said actuating means are actuated from two hand-wheels or like separate components and produce action on screw and nut devices carried by the two elements to be actuated.
Claim 6
Dependent Claim
42 words
An installation in accordance with claim 1, wherein one of the two concentric tubular elements can be displaced by means of a screw disposed axially and adapted to cooperate with a nut which is mounted in the end-plate of the tubular frame.
Claim 7
Dependent Claim
46 words
An installation in accordance with claim 1, wherein the axial displacement of the second concentric tubular element with respect to the first is obtained by means of a screw disposed axially and adapted to cooperate with a nut carried by the end-plate of said second element.
Claim 8
Dependent Claim
49 words
An installation in accordance with claim 6, wherein the screw which serves to carry out the displacement of the second tubular element is actuated by means of a bevel-gear drive system which is operated by a hand-wheel whose shaft traverses the body of the frame through an elongated opening.
Claim 9
Dependent Claim
35 words
An installation in accordance with claim 1, wherein said link-arms are in the form of a quadrilateral or parallelogram which is so designed that said link-arms produce a substantially radial displacement of the holding head.
References Cited (Backward Citations)
GB149443A
Cited
FR1494867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |