Radiant heaters
US4676222A · kind A · utility
Inventors
Key dates
| Filing date | Oct 10, 1984 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Oct 10, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24D5/08
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A radiant heater comprises first and second reflector portions (1, 2); first and second side reflector plates (3, 4); first and second end reflector plates (5, 6); first and second steel U-tubes (7, 8) received by the first and second portions (1, 2) respectively; end reflector plates (9, 11) for the reflector portion (1) and end reflector plates (10, 12) for the reflector portion (2), the ends of the tube (7) protruding through the plate (9) and the ends of the tube (8) protruding through the plate (10); first and second gas (or oil) burners and control units (13, 14) communicating with the ends of tubes (7, 8) respectively nearer a V-shaped channel; and first and second suction fan units (16, 17) communicating with the ends of tubes (7, 8) respectively which are further from the channel (15). In use of the heater, gas (or oil) is burnt at the burners and control units (13, 14), and hot air is sucked through the tubes (7, 8) by the suction fan units (16, 17). The provision of two U-tubes (7, 8) provides for a greater heat output than with the use of a single tube for a given length of heater and the provision of side reflector plates (3, 4) end reflector plates (5, 6, 9, 11, 10, 1…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.