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US 5,488,792 AGranted
Mobile traffic warning sign
OwnerWang-On Kwokinventor
Life of this patent
Estimating the term…
Abstract
A mobile traffic warning sign including a heavy flat base, a conical spring fastened to the base at the top by holding-down plates and screws, and a collapsible conical covering with reflectors covered on the conical spring, and a case for receiving the warning traffic warning sign when the conical covering and the conical spring are collapsed and received in a circular recess on the base.
Claims2
A mobile traffic warning sign comprising:
- a flat base made from heavy material of rectangular shape and having a plurality of screw holes at a top side thereof and a plurality of legs at a bottom side thereof;
- a conical spring;
- holding-down plates detachably fixed to the screw holes on said flat base by screws to hold said conical spring on the top side of said flat base;
- a conical covering made from flexible material and covered on said conical spring and having reflector means on an outside;
- and
- a case for receiving said flat base and said conical spring and said conical covering when said conical covering and said conical spring are collapsed into a flat manner over said flat base.
3 more elements
Dependencies are inferred from the claim text.