Drain plug
US4683597A · kind A · utility
49Cited by
9References
18Claims
0Family size
Inventors
Key dates
| Filing date | Oct 20, 1986 |
| Grant date | Aug 4, 1987 |
| Priority date | — |
| Expiry date | Oct 20, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47K1/14
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A drain plug for sealing the waste and overflow drain assemblies during construction and system testing. A threaded bolt extends through a rubber washer. The bolt is screwed into a tapped hole in the shoe assembly of the drain, providing a secure plug that will not blow out during system testing. A sleeve may be employed on the bolt to allow ease of access to the bolt when deep drains are plugged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.