Flexible multi-tube cleaning lance positioner guide apparatus
US9964368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2017 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Apr 14, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28G15/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A guide tube pitch adjustment apparatus for aligning distal ends of lance guide tubes in registry with tube openings in a heat exchanger tube sheet is disclosed. A guide tube pitch clamp assembly carried within and supported from a housing. The pitch clamp assembly has at least two V-blocks fastened to a threaded rod. One V-block is fastened to a portion of the threaded rod having right hand threads, and another V-block is fastened to another portion of the threaded rod having left hand threads. Each of the V-blocks supports a portion of one of the guide tubes, and a cross bar clamp within the housing is oriented to span across the V-blocks and adjustably hold the portions of the guide tubes in a spaced relationship such that spacing between the distal ends of adjacent guide tubes may be adjusted by rotation of the threaded rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.