lunedì 28 novembre 2016

Step 17: Brevetti

 Slate leveling system for a billiard table


Numero di pubblicazioneUS5839966 A
Tipo di pubblicazioneConcessione
Numero domandaUS 08/939,312
Data di pubblicazione24 nov 1998
Data di registrazione29 set 1997
Data di priorità29 set 1997
Stato tariffaPagato
InventoriMarvin EisenhauerWilliam R. McCormick
Assegnatario originaleBrunswick Bowling & Billiards



ESTRATTO

Time consuming, unreliable leveling of the playing surface of a billiard table is eliminated in a billiard table including a base frame adapted to be supported above the underlying terrain by legs. The base frame has an upper top plate of generally rectangular configuration and a slate bed made up of at least two slate sheets with planar upper surfaces disposed in a generally side by side abutting relation overlying the top plate. A plurality of nuts are secured to the top plate at predetermined locations thereon and a plurality of leveling screws are provided, one for each nut. Each leveling screw includes a threaded shank received in the associated nut in a radially outwardly directed flange at one end of the shank at the interface of the top plate and the slate sheets and engaging one of the slate sheets. Through rotation of the leveling screws, the corresponding slate sheet may be selectively raised, lowered or tipped to cause the planar surfaces to be co-planar in a perfectly horizontal plane.


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