Water heaters with sealed door assembly
US8490580B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Aug 18, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H9/0026
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A water heater door assembly includes a base plate sized and shaped to substantially sealingly cover an access opening in a water heater combustion chamber and has at least one opening through which a fuel supply line extends at least partly between a burner in the combustion chamber and a gas control valve, and a flexible seal positioned at least partly within the opening including an engaging portion substantially sealed to an edge portion of the opening, and a through hole that is shaped to receive the fuel supply and has a size slightly smaller than the size of an outer dimension of the fuel supply line such that the flexible seal and the fuel supply line are friction fit together to form a seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.