Universal plastic plumbing joint
US4620330A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1983 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Oct 4, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/915
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Plastic plumbing joint assemblies of a universal nature are made available by this invention to provide with a single coupling unit construction a variety of different functions including clean-out access, pipe end dust covers or vents, drain assemblies, threaded pipe to plastic couplings, flush floor or wall mount, snap-in friction fit or permanent solvent welded installation, etc. The integral plastic plumbing coupling joint unit has an internally threaded barrel assembly and outside smooth cylindrical surface mating inside a plastic pipe. If flush fit thereon, a thin rim circumferential flange fits on a floor surface with a flush removable center closure plug for flush mount on a wall. A lower skirt below the threaded barrel presenting a smooth cylindrical inner surface can receive a plastic pipe internally. A thin cover plate or drain plate can be held on by one screw for flush floor mount. A screw in access plug flush mounts on a floor surface by means of indented wrench sockets and provides high pressure sealing capabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.