Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Lester V. Broersma0
Date of Patent
March 23, 2010
0Patent Application Number
115118650
Date Filed
August 28, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A head shield device having a frame and a replaceable lens. An engagement axle having an large dimension and a small dimension is attached to the frame. The lens defines an aperture with a neck and an enlarged inner body. The small dimension of the axle is adapted to pass through the neck and rotation of the axle to the large dimension locks the lens in place on the frame. The axle rotation is controlled by a control device located on a tab assembly forming the engagement axle.
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