Method and apparatus for improved belt type expansion joints
US5228255A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1992 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Apr 28, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L51/022
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for defining an expansion joint seal with a belt comprising a body portion elongated in the longitudinal direction and having a first edge bead at one end and a second edge bead at the other end. A first edge bead is inserted within a larger diameter first cylindrical cavity elongated in the transverse direction and defined by inner and outer recesses between a first clamp bar and a first clamping surface. A second edge bead then is inserted within a larger diameter second cylindrical cavity, also elongated in the transverse direction and defined by a second clamp bar and a second clamping surface. Each clamp bar then is fastened to locate a bead edge loosely within a surrounding cavity. Finally, a sealant material is injected under pressure into each cavity, so as to surround the edge bead loosely positioned therein, and thereby create a tight seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.