Coupler for connecting lines
US10442240B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 7, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jan 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/1056
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A coupling device for connecting first and second chalk lines includes a generally planar body portion having a first end, a second end and opposed sides edges, an aperture formed in the body portion adjacent to the first end for attaching a free end of a first chalk line to the coupling device, and a plurality of spaced apart and linearly aligned hooks extending from the body portion adjacent to one of the side edges, the plurality of hooks defining a channel for receiving a second chalk line therethrough. Each of the hooks includes a clearance portion for insertion of the second chalk line into the channel defined by the plurality of hooks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.