Soot blower assembly
US5752288A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1996 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Dec 6, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28G15/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A soot blower lance tube indexing mechanism including a pinion, first and second pinion ratchet/sprocket assemblies, a spindle, first and second spindle sprockets, and a clutch. The clutch is operable to link the first pinion ratchet/sprocket assembly with the first spindle sprocket to rotatably drive the spindle in a first direction when the lance tube is extended. The clutch is further operable to link the second ratchet/sprocket assembly with the second spindle sprocket to rotatably drive the spindle when the lance tube is retracted. In an alternative embodiment, the lance tube rotates in a single direction regardless of whether the lance tube is being extended or retracted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.