Marking device
US3988835A · kind A · utility
Inventor
Key dates
| Filing date | Dec 16, 1974 |
| Grant date | Nov 2, 1976 |
| Priority date | — |
| Expiry date | Dec 16, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25H7/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A marking device has a cylindrical housing journalled to an extended arm. The cylindrical housing has an outer peripheral surface whose circumference preferrably corresponds to a standard linear distance that is normally encountered in the building industry. The peripheral surface has at least one marking element extending radially from it so that as the cylindrical housing is rotated over a workpiece, the marking element leaves a mark on the workpiece that serves as a centerline measurement for the accurate alignment and placement of building components on the workpiece. The extended arm of the device includes a movable guide that may be extended radially beyond the peripheral surface of the cylindrical housing for guiding the marking device as it is moved along the workpiece or that may be retracted radially from its extension beyond the peripheral surface so that the marking device may be used on an extended planar surface without the guide interfering with the travel of the device over the planar surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.