Deep water stationary wave system and method

Abstract

A wave system is disclosed herein, including a water outlet, pumps, a controller for regulating the flow of water, an obstacle on the ride area floor capable of generating a surface contour of the water flowing over the ride area. The system may also include a variable surface in a reservoir, whereby the upper surface of the reservoir wall may be raised or lowered to affect the profile of the surface contour. Also disclosed is a training system for use with the wave system. A check valve cover is also provide to prevent backflow through inoperative pumps.

The invention claimed is: 
     
         1 . A check valve cover, comprising:
 a housing configured to be coupled to a pump;   a first door and a second door hingedly connected via a common hinge to the housing, each of the first and second doors having a front surface and a rear surface, wherein the first door and second door are configured to open responsive to a flow of water from the pump through the housing; and   at least one projection extending outwardly from the rear surface of at least one of the first door or the second door, wherein the at least one projection prevents the rear surface of the first door from contacting the rear surface of the second door when the first and second doors are in an open position;   wherein, responsive to a backflow of the water through the housing toward the pump, the rear surface of the first door and the rear surface of the second door are positioned by the backflow into a closed position.   
     
     
         2 . The check valve cover of  claim 1 , wherein the front surfaces of the first and second doors face the flow of water from the pump, and the rear surfaces of the first and second doors face the backflow. 
     
     
         3 . The check valve cover of  claim 2 , wherein each of the first and second doors includes one or more ribs extending from the front surfaces to increase a structural strength of the first and second doors. 
     
     
         4 . The check valve cover of  claim 1 , wherein the at least one projection comprises a plurality of projections spaced apart on the rear surface of at least one of the first or second doors. 
     
     
         5 . The check valve cover of  claim 1 , further comprising a raised portion located along an inner perimeter of the housing, the raised portion configured to act as a stop to limit movement of the first and second doors in the closed position. 
     
     
         6 . The check valve cover of  claim 5 , wherein the raised portion is configured to act as a stop so that during backflow, the first and second doors stop at the closed position, rather than continuing to re-open in a reverse direction. 
     
     
         7 . The check valve cover of  claim 5 , wherein the raised portion is discontinuous and/or comprises one or more raised features positioned along the perimeter of the housing. 
     
     
         8 . The check valve cover of  claim 1 , wherein the hinge is a vertical hinge disposed along a midpoint of the housing, and the first and second doors are configured to rotate toward each other about the hinge. 
     
     
         9 . The check valve cover of  claim 1 , wherein the check valve cover is configured to prevent pressure loss in a downstream tank when the pump is inactive. 
     
     
         10 . The check valve cover of  claim 1 , wherein the check valve cover is part of a water ride pump system having a tailwater tank and a headwater tank, and the check valve cover is configured to prevent water from flowing from the headwater tank to the tailwater tank when the pump is inactive.