Conduit bender with bend angle indicators
US4452064A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1982 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Nov 29, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D7/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tube bender comprising a body having an upwardly opening hook at a front end thereof and having a bottom surface defined by a convexly arcuate bending shoe extending rearwardly from the hook has movable indicators, one for each of a plurality of bend angles, each of which rises to a signalling position when a tube being bent attains its bend angle. Each indicator has a pin-like shank slidable in a bore in the body that opens to the bottom surface near the vertical plane of symmetry of the shoe and at a location where a tube being bent contacts that surface upon attaining the bend angle for the indicator. A head on the indicator normally rests on an upwardly facing surface on the body to which the bore opens upwardly, with the shank projecting below said bottom surface. The head comes flush with an upwardly facing signalling surface on the body when the bend angle is attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.