...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
AbstractA headwear article having an inverted cup-shaped crown for placement over the head of an individual, a band on the crown with a surface embracing the head of the individual wearing the headwear and an inflatable element on at least one of the crown and band for varying the effective diameter of the band surface. | InventorApplicationNo. 487609 filed on 03/02/1990US Classes:2/195.2, Adjustable2/183, Head size adjustment2/413, By fluid-containing cushion2/418For circumference of crownField of Search2/181, With sweats or other supplementary head engaging member2/183, Head size adjustment2/417, Including adjustment for wearer's head size2/418For circumference of crownExaminersPrimary: Schroeder, Werner H.Assistant: Biefeld, Diana L. Attorney, Agent or FirmUS Patent References531505, 805750, 1391753, 2673349, 3713640, 3866243, 4872218, Cap attachment to prevent protruding hairIssued on: 10/10/1989 Inventor: Holt4941210Quick-change sweat band Issued on: 07/17/1990 Inventor: Konucik Foreign Patent References
International ClassA42B 001/04 |