Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
Apparatus for screening and conveying particulate matter, comprising a screen cloth; a supporting frame for the screen cloth; an elongate structural member attached to the underside of said frame and extending from end to end thereof; springing means adapted to resiliently support said frame and said screen cloth on a load-bearing surface, for both sizing and conveying purposes; vibratory means slideably mounted on the elongate structural member for imparting vibratory motion to said frame and said screen cloth; and control means for the vibratory means adapted to vary the mode of vibration imparted to said frame and said screen cloth between a high amplitude, low frequency vibration and a high frequency, low amplitude vibration.
Claim 2
Dependent Claim
114 words
Apparatus for screening and conveying particulate matter, comprising a screen cloth; a supporting frame for the screen cloth; an elongate structural member attached to the underside of said frame and extending from end to end thereof; springing means adapted to resiliently support said frame and said screen cloth on a load-bearing surface, for both sizing and conveying purposes; vibratory means slideably mounted on the elongate structural member for imparting vibratory motion to said frame and said screen cloth; and control means for the vibratory means adapted to vary the mode of vibration imparted to said frame and said screen cloth between a high amplitude, low frequency vibration and a high frequency, low amplitude vibration.
Claim 3
Dependent Claim
16 words
Apparatus as set forth in claim 1, wherein the vibratory means is mounted on the screen.
Claim 4
Dependent Claim
21 words
Apparatus as set forth in claim 1, wherein the springing means comprises a plurality of springs individually mounted on the frame.
Claim 5
Dependent Claim
16 words
Apparatus as set forth in claim 1, wherein the vibratory means is driven by compressed air.
Claim 6
Dependent Claim
16 words
Apparatus as set forth in claim 1, wherein the vibratory means is driven by hydraulic fluid.
Claim 7
Dependent Claim
108 words
Apparatus for screening and conveying particulate matter, comprising a sizing screen; springing means adapted to resiliently support the screen on a load-bearing surface for both sizing and conveying purposes; means for imparting vibratory motion to the screen; and control means for the vibratory means adapted to vary the mode of vibration imparted to the screen between a high amplitude, low frequency vibration and a high-frequency, low amplitude vibration; and sensing means attached to the screen, said sensing means being adapted to actuate the control means for the vibratory means to change the mode of vibration by sensing plugging of the screen apertures by particulate matter on the screen.
Claim 8
Dependent Claim
108 words
Apparatus for screening and conveying particulate matter, comprising a sizing screen; springing means adapted to resiliently support the screen on a load-bearing surface for both sizing and conveying purposes; means for imparting vibratory motion to the screen; and control means for the vibratory means adapted to vary the mode of vibration imparted to the screen between a high amplitude, low frequency vibration and a high-frequency, low amplitude vibration; and sensing means attached to the screen, said sensing means being adapted to actuate the control means for the vibratory means to change the mode of vibration by sensing plugging of the screen apertures by particulate matter on the screen.