Oscillators – Relaxation oscillators
Patent
1991-12-09
1992-10-13
Haroian, Harry N.
Oscillators
Relaxation oscillators
33668, G01B 310
Patent
active
051540061
ABSTRACT:
A clip for clasping a marking device such as a carpenter's pencil mounts against the side of a conventional tape measure case, secured to the case by a screw that is located in the center of the side of the case (or integrated into a tape case). The marker is engaged by the clip in a recess and oriented such that the marking device is angularly directed to a contact point with its end a given distance from the case and next to the tape measure when it is extended from the case. In an alternative embodiment, the described clip is mounted to an end of an extension rod with the other end of the rod rotatably mounted to the tape measure case such that the clip with engaged marking device is free to rotate at the direction of the user.
REFERENCES:
patent: 4296554 (1981-10-01), Hammerstrom
patent: 4760648 (1988-08-01), Doak et al.
patent: 4964225 (1990-10-01), Waldherr
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