Undulating screen for vibratory screening machine

A screening screen assembly for screening material in a vibrating screening machine comprising a substantially planar apertured plate, and a bonded undulating subassembly of a coarse support screen and a fine screening screen bonded to each other by a fused perforated plastic grid, said undulating subassembly including ridges and troughs, said fused plastic grid including first portions extending substantially symmetrically across said ridges and substantially perpendicularly to the length dimension of said ridges, said fused plastic grid including second portions proximate said troughs extending transversely to said first portions, said subassembly including a fine screening screen side and a coarse support screen side, and said substantially planar apertured plate being bonded to the coarse support screen side of the bonded undulating subassembly.

A screening screen assembly for screening material in a vibrating screening machine comprising a substantially planar apertured plate, and a bonded undulating subassembly of a coarse support screen and a fine screening screen bonded to each other by a fused perforated plastic grid, said undulating subassembly including ridges and troughs, said fused plastic grid including first portions extending substantially symmetrically across said ridges and substantially perpendicularly to the length dimension of said ridges, said fused plastic grid including second portions proximate said troughs extending transversely to said first portions, said subassembly including a fine screening screen side and a coarse support screen side, and said substantially planar apertured plate being bonded to the fine screening screen side of the bonded undulating subassembly.

A screening screen assembly for screening material in a vibratory screening machine comprising a substantially planar apertured plate, an undulating subassembly of a support screen and a fine screening screen having ridges and troughs, said ridges having sides which merge into said troughs, fused plastic bonding means bonding said fine screening screen to said support screen at spaced locations while leaving unobstructed portions of said screens therebetween, undersides on said troughs bonded to said apertured plate, said fused plastic bonding means including first portions extending substantially perpendicularly to the length dimension of said ridges and throughout the major portion of said sides of said ridges, and said fused plastic bonding means including second portions which extend through said troughs.

A screening screen assembly for screening material in a vibratory screening machine comprising a substantially planar apertured plate, an undulating subassembly of a fine screening screen and a support screen, said undulating subassembly including alternating ridges and troughs, said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween, said subassembly being bonded to said apertured plate to form said screen assembly, and caps sealing the ends of said ridges.

A screening screen assembly for screening material in a vibrating screening machine comprising a substantially planar apertured plate, a bonded undulating subassembly of a coarse support screen and a fine screening screen bonded to each other by a fused perforated plastic grid, said undulating subassembly including ridges and troughs, said subassembly including a fine screening screen side and a coarse support screen side, said screen assembly further including means bonding said substantially planar apertured plate to the coarse support screen side of the bonded undulating subassembly, and caps sealing the ends of said ridges.

A screening screen assembly for screening material in a vibrating screening machine comprising a substantially planar apertured plate, a bonded undulating subassembly of a coarse support screen and a fine screening screen bonded to each other by a fused perforated plastic grid, said subassembly including a fine screening screen side and a coarse support screen side, said screen assembly further including means bonding said substantially planar apertured plate to the fine screening screen side of the bonded undulating subassembly, and caps sealing the ends of said ridges.

A screening screen assembly for screening material in a vibratory screening machine comprising a substantially planar apertured plate, an undulating subassembly of a support screen and a fine screening screen having ridges and troughs, fused plastic bonding means bonding said fine screening screen to said support screen at spaced locations while leaving unobstructed portions of said screens therebetween, undersides on said troughs, and means bonding said undersides of said troughs to said apertured plate, and caps sealing the ends of said ridges.

A plurality of screening screen assemblies for screening material in a vibratory screening machine with each assembly comprising a substantially planar apertured plate, an undulating subassembly of a fine screening screen and a support screen, said undulating subassembly including alternating ridges and troughs, said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween, said subassembly being bonded to said apertured plate to form said screen assembly, and said plurality of screening screen assemblies being placed end-to-end with said ridges of each assembly being in alignment and with said troughs of each assembly being in alignment.

A plurality of screening screen assemblies for screening material in a vibrating screening machine with each assembly comprising a substantially planar apertured plate, and a bonded undulating subassembly of a coarse support screen and a fine screening screen bonded to each other by a fused perforated plastic grid, said undulating subassembly including ridges and troughs, said subassembly including a fine screening screen side and a coarse support screen side, and said substantially planar apertured plate being bonded to the coarse support screen side of the bonded undulating subassembly, and said plurality of screening screen assemblies being placed end-to-end with said ridges of each assembly being in alignment and with said troughs of each assembly being in alignment.

A plurality of screening screen assemblies for screening material in a vibrating screening machine with each assembly comprising a substantially planar apertured plate, and a bonded undulating subassembly of a coarse support screen and a fine screening screen bonded to each other by a fused perforated plastic grid, said undulating subassembly including ridges and troughs, said subassembly including a fine screening screen side and a coarse support screen side, said substantially planar apertured plate being bonded to the fine screening screen side of the bonded undulating subassembly, and said plurality of screening screen assemblies being placed end-to-end with said ridges of each assembly being in alignment and with said troughs of each assembly being in alignment.

A plurality of screening screen assemblies for screening material in a vibratory screening machine with each assembly comprising a substantially planar apertured plate, an undulating subassembly of a support screen and a fine screening screen having ridges and troughs, fused plastic bonding means bonding said fine screening screen to said support screen at spaced locations while leaving unobstructed portions of said screens therebetween, undersides on said troughs bonded to said apertured plate, and said plurality of screening screen assemblies being placed end-to-end with said ridges of each assembly being in alignment and with said troughs of each assembly being in alignment.

A screening screen assembly for screening material in a vibratory screening machine comprising an apertured frame, and an undulating subassembly of a fine screening screen and a support screen, said subassembly including ridges and troughs between said ridges, said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween, and said subassembly being bonded to said apertured frame to form said screen assembly.

A screening screen assembly for screening material in a vibratory screening machine comprising an apertured frame, and an undulating subassembly of a fine screening screen and a support screen, said subassembly including ridges and trough means between said ridges for conducting material longitudinally of said trough means while said material is being screened, said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween, and said subassembly being bonded to said apertured frame to form said screen assembly.

A plurality of screening screen assemblies for screening material in a vibratory screening machine with each assembly comprising a frame, an undulating subassembly of a fine screening screen and a support screen, said undulating subassembly including alternating ridges and troughs, said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween, said subassembly being bonded to said frame to form said screen assembly, and said plurality of screening screen assemblies being placed end-to-end with said ridges of each assembly being in alignment and with said troughs of each assembly being in alignment.

A plurality of screening screen assemblies for screening material in a vibrating screening machine with each assembly comprising a frame, and a bonded undulating subassembly of a coarse support screen and a fine screening screen bonded to each other by a fused perforated plastic grid, said undulating subassembly including ridges and troughs, said subassembly including a fine screening screen side and a coarse support screen side, and said frame being bonded to the coarse support screen side of the bonded undulating subassembly, and said plurality of screening screen assemblies being placed end-to-end with said ridges of each assembly being in alignment and with said troughs of each assembly being in alignment.

A plurality of screening screen assemblies for screening material in a vibrating screening machine with each assembly comprising a frame, and a bonded undulating subassembly of a coarse support screen and a fine screening screen bonded to each other by a fused perforated plastic grid, said undulating subassembly including ridges and troughs, said subassembly including a fine screening screen side and a coarse support screen side, said frame being bonded to the fine screening screen side of the bonded undulating subassembly, and said plurality of screening screen assemblies being placed end-to-end with said ridges of each assembly being in alignment and with said troughs of each assembly being in alignment.

A plurality of screening screen assemblies for screening material in a vibratory screening machine with each assembly comprising a frame, an undulating subassembly of a support screen and a fine screening screen having ridges and troughs, fused plastic bonding means bonding said fine screening screen to said support screen at spaced locations while leaving unobstructed portions of said screens therebetween, undersides on said troughs bonded to said frame, and said plurality of screening screen assemblies being placed end-to-end with said ridges of each assembly being in alignment and with said troughs of each assembly being in alignment.

An undulating screen assembly for screening material in a vibratory screening machine comprising a fine screening screen and a support screen, said undulating assembly including alternating ridges and troughs, said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween, and said areas of fused plastic including portions extending substantially symmetrically across said ridges.

An undulating screen assembly for screening material in a vibratory screening machine comprising a fine screening screen and a support screen, said undulating assembly including alternating ridges and troughs, and said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween.

An undulating screen assembly for screening material in a vibratory screening machine comprising a support screen and a fine screening screen, said undulating assembly having ridges and troughs, and fused plastic bonding means bonding said fine screening screen to said support screen at spaced locations while leaving unobstructed portions of said screens therebetween.

An undulating screen assembly for screening material in a vibratory screening machine comprising a fine screening screen and a support screen, said undulating assembly including ridges and troughs between said ridges for conducting material longitudinally of said ridges while said material is being screened, and said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween.

A plurality of screening screen assemblies for screening material in a vibratory screening machine with each assembly comprising an undulating assembly of a fine screening screen and a support screen, said undulating assembly including a plurality of alternating ridges and a plurality of troughs, said fine screening screen being bonded in contiguous relationship to said support screen by areas of fused plastic with unobstructed portions of said contiguous screens therebetween, and said plurality of screening screen assemblies being placed end-to-end with said plurality of ridges of each assembly being in alignment and with said plurality of troughs of each assembly being in alignment.