Telescoping measuring stick with air damped closure and friction

Details Telescoping measuring stick with air damped closure and friction Telescoping measuring stick with air damped closure and friction

1997-05-21

1999-06-29

Fulton, Christopher W.

Geometrical instruments

Distance measuring

Opposed contacts

33295, 33296, 33DIG2, G01B 308

Patent

active

059158107

ABSTRACT:
A fixed length telescoping measuring stick that is self supporting and includes an inner telescoping ruler and two-way level combination. A divided encasement comes together via an air-damped cushion provided by a controlled release air lock that is automatically effective to protect the user. This air cushion damper is in combination with a friction position locking knob for either right or left handed users.

REFERENCES:
patent: D362399 (1995-09-01), Cameron
patent: 3492737 (1970-02-01), Swanson
patent: 4318228 (1982-03-01), Kimura
patent: 4399616 (1983-08-01), Jansson
patent: 4471532 (1984-09-01), Francis
patent: 4621431 (1986-11-01), Fatool et al.

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