Flame spray gun with wire feed control
US5255836A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1993 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Jan 25, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H51/30
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A wire flame spray apparatus includes a wire feed pulley driven by a motor. A first counterpulley urges a wire into engagement with the feed pulley. A detector pulley with a second counterpulley engages the wire to detect actual wire feed rate. A balance beam supports the counterpulleys. A pressure cylinder acts on the beam to increase counterpulley force on the wire in response to a lagging of actual feed rate from a predetermined feed rate so as to avert slippage of the wire on the feed pulley. A sensor senses changes in rotational speed of the detector pulley and generates signals to increase the counterpulley force. A microprocessor provides control signals for the motor and pressure cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.