Abstract: A wave generator for a wave pool with a floating attenuator housed within a caisson compartment that has mass, density and weight characteristics that enable it to remain substantially in contact with the top surface of the water in the compartment. Additional mechanisms are provided which help to keep the attenuator in a substantially horizontal orientation within the caisson, such that unwanted wave motions and water movements within the caisson compartment can be substantially reduced or eliminated. These mechanisms include the adaptation of a vertical post within the compartment and cable and pulley systems that are designed to help control the up and down movement of the attenuator as it travels up and down within the compartment.

Abstract: A wave pool having a deep end and a shallow end with a plurality of wave generators along the deep end that are extended along a curved stagger line positioned at an oblique angle relative to the moving waves. The wave generators are preferably extended in a substantially staggered manner relative to the travel direction of the waves. A pair of dividing walls is preferably provided in front of each generator, wherein the dividing walls are extended substantially forward with a fade angle of no more than about 20 degrees relative to each other. The wave generators are preferably operated in sequence, such that a plurality of wave segments is generated, and such that the wave segments travel forward and then merge together to form a substantially uniform resultant wave which travels forward and then breaks along the shallow end.

Abstract: A filtration system for filtering a liquid includes a drum filter (2) having a primary inlet (4) and a primary outlet (6) in a housing (8), and a rotatable drum screen (10) arranged in the housing. A back flush element (12) is arranged on one side of the drum filter for back flushing filtered particles from the drum screen, and a gutter element (14) is arranged on an opposite side of the drum screen for collecting filtered particles, wherein the gutter element is connected to a secondary outlet (16) in the housing. The filtration system is furthermore provided with a buffer reservoir (18) having a reservoir inlet (20) which is connected to the secondary outlet so as to be closable. The filtration system further includes compression elements (34) for controlling a gas pressure (Pt) in the housing of the drum filter and a gas pressure (Pr) in the buffer reservoir.

Abstract: A wave pool for producing waves having a first wave forming portion with an inclined section and a second wave dampening portion having a raised floor above a bottom chamber floor wherein the raised floor preferably has multiple openings thereon and a predetermined porosity (?) within the range of 0<??0.5, such that as the waves travel across the wave dampening chamber, a boundary layer of energy absorbing vortices and eddies are generated above and below the raised floor resulting from water flowing up and down through the perforations, which helps to dampen the waves, and wherein the raised floor preferably comprises a padded grate drainage system consisting of multiple elongated members formed by rigid bars with foam adhered on one side thereof, which are encapsulated by a water impervious layer.

Abstract: A wave pool for producing waves has a first wave-forming portion with an inclined section for causing the waves to begin breaking and a second wave-dampening portion with a raised floor with perforations extended above a bottom chamber floor. The raised floor is preferably adapted with a predetermined porosity such that a boundary layer of energy absorbing vortices and eddies is generated above and below the raised floor, resulting from water passing up and down through the openings, and the boundary layer effects on the raised floor help to dampen the waves.

Abstract: The disclosure relates to a method and apparatus for a wave pool having a deep end and a shallow end, wherein a plurality of wave generators is provided for producing wave segments in the wave pool. The wave generators are preferably extended substantially along the deep end in a substantially staggered manner relative to the travel direction of the wave segments. A pair of dividing walls is preferably provided in front of each wave generator, wherein the dividing walls are extended substantially forward in the travel direction and substantially parallel to each other or with a fade angle of no more than about 20 to 30 degrees relative to each other.

Abstract: A wave pool having a deep end and a shallow end with a plurality of wave generators along the deep end that are extended along a curved stagger line positioned at an oblique angle relative to the moving waves. The wave generators are preferably extended in a substantially staggered manner relative to the travel direction of the waves. A pair of dividing walls is preferably provided in front of each generator, wherein the dividing walls are extended substantially forward with a fade angle of no more than about 20 degrees relative to each other. The wave generators are preferably operated in sequence, such that a plurality of wave segments is generated, and such that the wave segments travel forward and then merge together to form a substantially uniform resultant wave which travels forward and then breaks along the shallow end.

Abstract: A wave pool having a deep end and a shallow end with a plurality of wave generators along the deep end that are extended along a curved stagger line positioned at an oblique angle relative to the moving waves. The wave generators are preferably extended in a substantially staggered manner relative to the travel direction of the waves. A pair of dividing walls is preferably provided in front of each generator, wherein the dividing walls are extended substantially forward with an outward fade angle of no more than about 20 degrees relative to each other. The wave generators are preferably operated in sequence, such that a plurality of wave segments is generated, and such that the wave segments travel forward and then merge together to form a substantially uniform resultant wave which travels forward and then breaks along the shallow end.

Abstract: A wave pool for producing waves having a first wave forming portion with an inclined section oriented obliquely relative to the travel direction of the waves and a second wave dampening portion having a raised perforated floor above a bottom chamber floor wherein the raised floor is preferably extended substantially horizontally at a predetermined depth in the water or at a slight incline, and wherein the raised floor preferably has a predetermined porosity (?) within the range of 0<??0.5, such that as the waves travel across the wave dampening chamber, a boundary layer of energy absorbing vortices and eddies are generated above and below the raised floor resulting from water flowing up and down through the perforations, which helps to dampen the waves.

Abstract: A wave pool for producing waves has a first wave-forming portion with an inclined section for causing the waves to begin breaking and a second wave-dampening portion with a raised floor with perforations extended above a bottom chamber floor. The raised floor is preferably adapted with a predetermined porosity such that a boundary layer of energy absorbing vortices and eddies is generated above and below the raised floor, resulting from water passing up and down through the openings, and the boundary layer effects on the raised floor help to dampen the waves.

Abstract: A filtration system for filtering a liquid includes a drum filter (2) having a primary inlet (4) and a primary outlet (6) in a housing (8), and a rotatable drum screen (10) arranged in the housing. A back flush element (12) is arranged on one side of the drum filter for back flushing filtered particles from the drum screen, and a gutter element (14) is arranged on an opposite side of the drum screen for collecting filtered particles, wherein the gutter element is connected to a secondary outlet (16) in the housing. The filtration system is furthermore provided with a buffer reservoir (18) having a reservoir inlet (20) which is connected to the secondary outlet so as to be closable. The filtration system further includes compression elements (34) for controlling a gas pressure (Pt) in the housing of the drum filter and a gas pressure (Pr) in the buffer reservoir.

Abstract: A wave generator for a wave pool with a floating attenuator housed within a caisson compartment that has mass, density and weight characteristics that enable it to remain substantially in contact with the top surface of the water in the compartment. Additional mechanisms are provided which help to keep the attenuator in a substantially horizontal orientation within the caisson, such that unwanted wave motions and water movements within the caisson compartment can be substantially reduced or eliminated. These mechanisms include the adaptation of a vertical post within the compartment and cable and pulley systems that are designed to help control the up and down movement of the attenuator as it travels up and down within the compartment.

Abstract: A wave pool for producing waves having a first wave forming portion with an inclined section oriented obliquely relative to the travel direction of the waves and a second wave dampening portion having a raised perforated floor above a bottom chamber floor wherein the raised floor is preferably extended substantially horizontally at a predetermined depth in the water or at a slight incline, and wherein the raised floor preferably has a predetermined porosity (?) within the range of 0<??0.5, such that as the waves travel across the wave dampening chamber, a boundary layer of energy absorbing vortices and eddies are generated above and below the raised floor resulting from water flowing up and down through the perforations, which helps to dampen the waves.

Abstract: A wave pool for producing waves having a first wave forming portion with an inclined section and a second wave dampening portion having a raised floor above a bottom chamber floor wherein the raised floor preferably has multiple openings thereon and a predetermined porosity (?) within the range of 0<??0.5, such that as the waves travel across the wave dampening chamber, a boundary layer of energy absorbing vortices and eddies are generated above and below the raised floor resulting from water flowing up and down through the perforations, which helps to dampen the waves, and wherein the raised floor preferably comprises a padded grate drainage system consisting of multiple elongated members formed by rigid bars with foam adhered on one side thereof, which are encapsulated by a water impervious layer.

Abstract: The disclosure relates to a method and apparatus for a wave pool having a deep end and a shallow end, wherein a plurality of wave generators is provided for producing wave segments in the wave pool. The wave generators are preferably extended substantially along the deep end in a substantially staggered manner relative to the travel direction of the wave segments. A pair of dividing walls is preferably provided in front of each wave generator, wherein the dividing walls are extended substantially forward in the travel direction and substantially parallel to each other or with a fade angle of no more than about 20 to 30 degrees relative to each other.

Abstract: The invention relates to a wave pool having a deep end and a shallow end, wherein a plurality of wave generators is provided along the deep end that are extended along a curved stagger line positioned at an oblique angle relative to the moving waves. The wave generators are preferably extended in a substantially staggered manner relative to the travel direction of the waves, wherein a pair of dividing walls is preferably provided in front of each generator, wherein the dividing walls are extended substantially forward with an outward fade angle of no more than about 20 degrees relative to each other. The wave generators are preferably operated in sequence, such that a plurality of wave segments is generated, and such that the wave segments can travel forward and then merge together to form a substantially uniform resultant wave which travels forward and then breaks along the shallow end.

Abstract: A wave pool for producing periodic waves preferably having a first wave forming portion with an inclined section oriented obliquely relative to the travel direction of the waves, and a second wave dampening portion having a relatively deep solid chamber floor and a raised perforated floor above it for dampening the waves. The wave dampening portion preferably dissipates the waves, which in turn, reduces wave reflections and rip currents that can otherwise interfere with the oncoming waves.

Abstract: Disclosed is a method and apparatus for dampening waves preferably comprising a wave pool having two portions, a first wave forming portion with an inclined section oriented obliquely relative to the travel direction of the waves that causes the waves to begin breaking, and a second wave dampening portion having a relatively deep solid chamber floor and a raised perforated floor above it for dampening the waves after they begin to break. The properties of the raised floor, including its porosity, its depth (relative to the chamber depth), and the characteristics of the waves to be dampened, including the wave height and shape, are taken into account in designing a dampening system that substantially dissipates the waves, which in turn, reduces wave reflections and rip currents that can interfere with the next oncoming waves, and thereby, help to maintain quality surfing waves at high frequencies without increasing pool size.

Abstract: The present invention relates to a device for feeding liquid fuel to a diesel-type I.C. engine, said device comprising a pipe feeding fuel to the injection pumps of said engine, said feed pipe forming a feed loop and comprising a pipe for admission of said fuel, means for treating and circulating said fuel and a pipe for introducing additional liquid into said fuel, characterized in that the point of connection of said pipe for introducing additional liquid to said fuel feed pipe is located immediately upstream of that part of said feed pipe which supplies said injection pumps of said engine, and in that a closure valve, capable of closing said feed pipe, is located immediately downstream of said part of the feed pipe which supplies said injection pumps of said engine.

Abstract: A pool or water tank is provided with means for generating waves. Said means comprise one or more pipes (2), each of which is connected, at least at both ends, via a hole (8) in the wall of the pool or tank, to the pool or tank, wherein a piston or disc (5) which essentially closes off the cross-section of the pipe is fitted in one section of each of the pipes and a power source (6) is present in order to move the piston or disc backwards and forwards.