Illuminated locking tape measure device
Patent 4462160 Issued on July 31, 1984. Estimated Expiration Date: 
January 12, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 12, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1276311 2354853 2804538 2992487 3214836 3812588 Coilable rule Stored information transferable means for a combined electronic digital scale and calculator Patent #: 4181959 InventorsAssigneeApplicationNo. 06/457489 filed on 01/12/1983US Classes:33/760, Combined33/767, Including brake or lock362/119Hand tool (e.g., knife, drill)ExaminersPrimary: Stearns, Richard R.Attorney, Agent or FirmInternational ClassesG01B 3/10 (20060101)G01B 3/02 (20060101) H05K 1/18 (20060101) AbstractAn illuminated retractable tape measure has a casing which contains a coiled tape rule whose free end extends through an opening in the casing. A lock arrangement locks the tape against automatic retraction into the casing. In the lock arrangement, a locking member is mounted in the casing with an end thereof engageable with the tape to hold the same against a portion of the casing in a locking position. The end of the locking member is moved out of engagement with the tape when an unlocked position is established. A slide actuator pivots the lock member between its locked and unlocked positions. A small lamp or lamps is incorporated in the casing for illuminating the ruling on the tape measure, and the actuator closes a switch when the actuator is moved to its locked position to light the lamp. This feature facilitates reading measurements on the tape measure, especially in adverse lighting conditions.Other References
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