US4435888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for installing a sealing ring
Assignee: Wavin BV
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Filing: 1981-11-06
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Granted: 1984-03-13
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Expires: 2001-11-06
Abstract
Abstract An apparatus for installing a sealing ring in a groove chamber of a socket by impressing said sealing ring comprising a sealing ring impression member and sealing ring retaining means for maintaining the sealing ring in the impressed state said retaining means comprising two axis with flat sides.
Inventors
- 👤 Wilhelmus F. T. C. Olderaan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:00
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/0028; B23; B23P; B23P19/00; B23P19/04; B23P19/08; B23P19/084; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/53; Y10T29/53657; Y10T29/53796; Y10T29/5383
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
146 words
Apparatus for installing a sealing ring in an annular groove chamber of a socket end of a pipe part, comprising a sealing ring retaining member, a sealing ring impression member and retaining means so as to keep a sealing ring in its impressed position, as well as means for moving the retaining means from an inactive position into an active position and reverse, in which the retaining means comprises two elements being movable with respect to one another, and the impression member being movable in between said elements, said retaining means comprising a first mandrel portion being connected with a mandrel, said first mandrel portion adjoining said mandrel through an abutment edge, and a second mandrel portion, which expandable parts form a tapering surface when expanded, whereby the periphery of the tapering plane formed by said parts at least equals the periphery of a supporting ring.
Claim 2
Dependent Claim
146 words
Apparatus for installing a sealing ring in an annular groove chamber of a socket end of a pipe part, comprising a sealing ring retaining member, a sealing ring impression member and retaining means so as to keep a sealing ring in its impressed position, as well as means for moving the retaining means from an inactive position into an active position and reverse, in which the retaining means comprises two elements being movable with respect to one another, and the impression member being movable in between said elements, said retaining means comprising a first mandrel portion being connected with a mandrel, said first mandrel portion adjoining said mandrel through an abutment edge, and a second mandrel portion, which expandable parts form a tapering surface when expanded, whereby the periphery of the tapering plane formed by said parts at least equals the periphery of a supporting ring.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 wherein each element is provided with a flat side surface which may be positioned opposite each other.
Claim 4
Dependent Claim
21 words
The apparatus of claim 1 in which the surfaces of said elements are coarse except for their flat side or sides.
Claim 5
Dependent Claim
21 words
The apparatus of claim 1 further comprising a lubricating agent applying member for applying a lubricated agent upon the sealing ring.
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) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |