Claims
- 1. A process for preparing an assembly comprising a substrate and a covering which is hermetically sealed around the substrate which process comprises the steps of:
- placing a dimensionally recoverable covering member having at least one open end about the substrate which is sought to be hermetically sealed;
- causing said dimensionally recoverable covering member to recover and to seal hermetically about the substrate;
- detecting increased air pressure in the interior of the assembly between the covering member and substrate at a point which is remote from said open end by the employment of a detection device which communicates with said point whereby the formation of the hermetic seal is signalled by said detection device.
- 2. The process as claimed in claim 1, wherein said detection device communicates with the interior of the assembly via a probe.
- 3. A process as claimed in claim 1, wherein said covering member is provided with a lining selected from the group consisting of adhesives and mastics at least in those regions where it forms the hermetic seal to the substrate.
- 4. A process as claimed in claim 1, wherein said covering member is heat-recoverable.
- 5. A process as claimed in claim 1, wherein said covering member is generally tubular.
- 6. A process as claimed in claim 1, wherein the covering member is a closure article comprising first and second members adapted to be brought together to form a generally tubular structure having a central cavity portion, the first member being heat-recoverable and the second member being non-heat-recoverable, and provided with means for maintaining said members together during heat-recovery of said first member, the structure so formed being adapted at at least one end thereof to heat-recover around and seal a plurality of cables inserted therein.
- 7. A process as claimed in claim 6, wherein the central cavity portion has positioned therein a rigid, dimensionally stable container member for surrounding a splice.
- 8. A process as claimed in claim 1, wherein said covering member is provided with a valve.
- 9. A process as claimed in claim 1, wherein said covering member is provided with means for the attachment and detachment of the detection device.
- 10. A process as claimed in claim 1, wherein the detection is a balloon.
- 11. A process as claimed in claim 1, wherein the detection device is a whistle.
- 12. A process as claimed in claim 1, wherein the detection device is a manometer.
- 13. A process according to claim 1, wherein said dimensionally recoverable covering member is preformed.
- 14. A process according to claim 1, wherein said hermetic seal is signalled at the time of formation by said detection device.
- 15. A process as claimed in claim 1, wherein the covering member is an assembly comprised of two or more preformed covering members, at least one of which is at least in part heat-recoverable, and at least one of which has an adhesive or mastic lining at the seal-forming portions thereof, for sealing around the substrate to form a hermetically sealed enclosure, and wherein said detection device detects increased air pressure within said enclosure and provides for relief of excess air pressure therefrom once the hermetic seal has been formed.
- 16. A process as claimed in claim 1, wherein the covering member is preformed and is at least in part heat-recoverable and has an adhesive or mastic lining at the seal-forming portions thereof for sealing around the substrate to form a hermetically sealed enclosure and wherein said detection device detects increased air pressure within said enclosure and provides for relief of excess air pressure therefrom once the hermetic seal has been formed.
- 17. The process as claimed in claim 1, wherein said detection device is provided with a sharp probe used to create an aperture in the cover for communication with the interior of the assembly.
- 18. A process for preparing an assembly comprising a substrate and a covering which is hermetically sealed around the substrate which process comprises the steps of:
- placing a dimensionally recoverable covering member having at least one open end about the substrate which is sought to be hermetically sealed;
- causing said covering member to recover initially at the open end thereof and thereafter uniformly throughout so as to effectuate a hermetic seal about said substrate;
- detecting increased air pressure in the interior of the assembly between the covering member and substrate at a point which is remote from said open end by the employment of a detection device, which communicates with said point whereby the formation of the hermetic seal is signalled by said detection device.
- 19. The process as claimed in claim 18, wherein said detection device communicates with the interior of the assembly via a probe.
- 20. A process as claimed in claim 18, wherein said covering member is provided with a lining selected from the group consisting of adhesives and mastics at least in those regions where it forms the hermetic seal to the substrate.
- 21. A process as claimed in claim 18, wherein said covering member is heat-recoverable.
- 22. A process as claimed in claim 18, wherein said covering member is generally tubular.
- 23. A process as claimed in claim 18, wherein the covering member is a closure article comprising first and second members adapted to be brought together to form a generally tubular structure having a central cavity portion, the first member being heat-recoverable and the second member being non-heat-recoverable, and provided with means for maintaining said members together during heat-recovery of said first member, the structure so formed being adapted at at least one end thereof to heat-recover around and seal a plurality of cables inserted therein.
- 24. The process as claimed in claim 18, wherein said detection device is provided with a sharp probe used to create an aperture in the cover for communication with the interior of the assembly.
- 25. A process for preparing an assembly comprising a substrate and a covering which is hermetically sealed around the substrate which process comprises:
- heating at least one dimensionally recoverable member having at least one open end thereby causing said covering to recover and seal hermetically about the substrate;
- detecting increased air pressure caused by the recovery of said covering by employing a detection device which communicates via an aperture in the cover with a point remote from said open end in the interior of the assembly, whereby formation of the hermetic seal is signalled by said detection device.
- 26. A process as claimed in claim 25, wherein said covering member is provided with a lining selected from the group consisting of adhesives and mastics at least in those regions where it forms the hermetic seal to the substrate.
- 27. A process as claimed in claim 25, wherein said covering member is heat-recoverable.
- 28. A process as claimed in claim 25, wherein said covering member is generally tubular.
- 29. A process as claimed in claim 25, wherein the covering member is a closure article comprising first and second members adapted to be brought together to form a generally tubular structure having a central cavity portion, the first member being a heat-recoverable and the second member being non-heat-recoverable, and provided with means for maintaining said members together during heat-recovery of said first member, the structure so formed being adapted at at least one end of thereof to heat-recover around and seal a purality of cables inserted therein.
- 30. A process as claimed in claim 29, wherein the central cavity portion has positioned therein a rigid, dimensionally stable container memeber for surrounding a splice.
- 31. A process as claimed in claim 29, wherein said aperture is provided with a valve.
- 32. A process as claimed in claim 29, wherein said covering member is provided with means for the attachment and detachment of the detection device.
- 33. A process as claimed in claim 25, wherein the detection device is provided with a probe which makes the aperture in the covering member.
- 34. A process as claimed in claim 25, wherein the detection device is a balloon.
- 35. A process as claimed in claim 25, wherein the detection device is a whistle.
- 36. A process as claimed in claim 25, wherein the detection device is a manometer.
- 37. Apparatus for effectuating a hermetic seal around a substrate comprising of a dimensionally recoverable covering member for placement around said substrate, said covering member having at least one open end, and having an aperture removed from said open end, and having a detection device for attachment to said covering member in communication with said aperture for detecting the formation of a hermetic seal around said substrate upon recovery of said covering member
- 38. Apparatus as claimed in claim 32, wherein said covering member is provided with a lining selected from the group consisting of adhesives and mastics at least in those regions where it forms the hermetic seal to the substrate.
- 39. Apparatus as claimed in claim 37, wherein said covering member is heat-recoverable.
- 40. Apparatus as claimed in claim 37, wherein said covering member is generally tubular.
- 41. Apparatus comprising a closure article having first and second members adapted to be brought together to form a generally tubular structure having a central cavity portion, the first member being heat recoveable and the second member being non-heat recoverable, and provided with means for maintaining said members together during heat recovery of said first member, the structure so formed being adapted at at least one end thereof to heat-recover around and seal a plurality of cables inserted therein, said tubular structure having , on at least one end, an aperture remote from said end and a detection device for attachment to said aperture for detecting increased air pressure, said tubular structure having a lining of an adhesive at least in those regions where it forms the hermetic seal to the substrate.
- 42. Apparatus as claimed in claim 41, wherein the central cavity portion has positioned therein a rigid, dimensionally stable container member for surrounding a splice.
- 43. Apparatus as claimed in claim 37, wherein said aperture is provided with a valve.
- 44. Apparatus as claimed in claim 37, wherein said covering member is provided with means for the attachment and detachment of the detection device.
- 45. Apparatus as claimed in claim 37, wherein the detection device is provided with a probe which makes the aperture in the covering member.
- 46. Apparatus as claimed in claim 37, wherein the detection device is a balloon.
- 47. Apparatus as claimed in claim 37, wherein the detection device is a whistle.
- 48. Apparatus as claimed in claim 37, wherein the detection device is a manometer.
- 49. Apparatus as claimed in claim 37, wherein said detection device also provides a mechanism for relief of excess air pressure.
Priority Claims (1)
Number |
Date |
Country |
Kind |
35338/75 |
Aug 1975 |
GBX |
|
RELATED APPLICATION
This is a continuation of application Ser. No. 717,696, filed Aug.25, 1976, now abandoned.
US Referenced Citations (23)
Foreign Referenced Citations (5)
Number |
Date |
Country |
801235 |
Sep 1958 |
GBX |
944496 |
Dec 1963 |
GBX |
1155470 |
Jun 1969 |
GBX |
1211988 |
Nov 1970 |
GBX |
1346479 |
Feb 1974 |
GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
717696 |
Aug 1976 |
|