Leak repair clamp
US4049296A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 1976 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | May 3, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L23/003
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In one exemplar embodiment, a leak repair clamp for pipe and pipe flanges, valve bonnet flanges and the like is disclosed having a divided clamp frame positionable about the pipe or pipe flange. The divided clamp frame has a pair of spaced parallel channels disposed about its inner periphery. Deformable self-energizing seal members are disposed in each of the channels and having a flexible sealing tip portion radially extending from the inner periphery of the clamp frames. A retaining member is disposed in each of the channels adjacent the seal member for engaging the seal and the channel and retaining the seal member fixed within the channel. A means for clamping the divided clamp frame about the pipe is actuated for applying compressive force between the pipe or pipe flange and the flexible sealing tip portion of the parallel sealing members to compress and deform the tip portions of the parallel seal members for affecting a self-sealing sealed area encircling the pipe or pipe flanges to effectively seal off the leak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.