Simple controller for a power operated tape measure
US7415777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2007 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Oct 16, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/1005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A power operated tape measure enables measuring tape extension through a drive mechanism, as well as measuring tape retraction. A tape cartridge assembly including an annular reel, a measuring tape wound onto the reel, as well as a spring coupled with the reel, and is positioned within a housing shell of the tape measure. A drive mechanism accomplishes tape extension out of the housing shell, and optionally, tape retraction into the housing shell by engaging with a surface of the measuring tape. A primary actuator initiates input on one or more switches that selectively control operation of the drive mechanism, and includes a lever arm for a user to make selections regarding tape extension and retraction. A retraction actuator is moveable by a user to cause the drive mechanism to become disengaged from the surface of the tape, whereby spring powered retraction of the tape is permitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.