Geometrical instruments – Straightedge type – Cord type
Patent
1998-04-30
2000-08-08
Gutierrez, Diego
Geometrical instruments
Straightedge type
Cord type
241223, B44D 338
Patent
active
060982993
ABSTRACT:
According to an aspect of the present invention, a chalk line holder has a housing, an operating mechanism on the housing, with a spool around which a supply of line can be wound and moveable relative to the housing about a first axis, and a brake assembly for the spool. The brake assembly has a ratchet element moveable with the spool about the first axis, a pawl moveable transversely to the first axis between a) an engaged position wherein the pawl engages the ratchet element to prevent movement of the spool in a first direction about the first axis and b) a disengaged position, a biasing element normally urging the pawl towards the engaged position, and an actuator to move the pawl towards the disengaged position against the urging of the biasing element.
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Collins Daniel
Collins James E.
Nosek Gary
Francis Faye
Gutierrez Diego
Keson Industries Inc.
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