Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
223 words
A filtering apparatus comprising a supporting frame structure, a top supporting plate overlying the frame structure, a filtering chamber having open end walls and a closed bottom wall, a roll of filtering paper, means for supporting the roll of filtering paper upon the frame structure and leading to one opening of the filtering chamber, said filtering paper extendable through the opposite opening of the filtering chamber, a drive roller receiving the filtering paper and operable to replace the filtering area of the paper within the filtering chamber, said filtering chamber having a liquid inlet for the liquid to be filtered and a drain outlet for the filtered liquid underlying the filter paper, end gate members aligned and operable respectively with the opposite end openings and operable in an opposing manner to close the filtering chamber end openings and to seal the filtering paper extended therethrough upon the filtering chamber, and opposing gate actuating mechanisms overlying the filtering chamber and connected respectively to the pivotable end gates to open and close the same and an evacuating device connected to the filtering chamber to remove the liquid therefrom at times prior to the opening of the end gates and the shifting of the filtering paper and to return the liquid to the filtering chamber upon the end gate openings being closed upon the filtering paper.
Claim 2
Dependent Claim
223 words
A filtering apparatus comprising a supporting frame structure, a top supporting plate overlying the frame structure, a filtering chamber having open end walls and a closed bottom wall, a roll of filtering paper, means for supporting the roll of filtering paper upon the frame structure and leading to one opening of the filtering chamber, said filtering paper extendable through the opposite opening of the filtering chamber, a drive roller receiving the filtering paper and operable to replace the filtering area of the paper within the filtering chamber, said filtering chamber having a liquid inlet for the liquid to be filtered and a drain outlet for the filtered liquid underlying the filter paper, end gate members aligned and operable respectively with the opposite end openings and operable in an opposing manner to close the filtering chamber end openings and to seal the filtering paper extended therethrough upon the filtering chamber, and opposing gate actuating mechanisms overlying the filtering chamber and connected respectively to the pivotable end gates to open and close the same and an evacuating device connected to the filtering chamber to remove the liquid therefrom at times prior to the opening of the end gates and the shifting of the filtering paper and to return the liquid to the filtering chamber upon the end gate openings being closed upon the filtering paper.
Claim 3
Dependent Claim
99 words
A liquid filtering apparatus as defined in claim 1, and said end gates operating devices including fluid operating piston cylinders supported upon the top plate of the frame structure and toggle link mechanism respectively extending from the respective cylinder devices to the respective opposing end gates and said liquid evacuating apparatus including a large evacuating cylinder with a valve controlled pipeline extending between the filtering chamber and the evacuating cylinder and a fluid actuating cylinder device connected to the evacuating cylinder to actuate the same for extracting liquid from the filtering chamber and returning the liquid to the same.
Claim 4
Dependent Claim
48 words
A liquid filtering apparatus as defined in claim 2, and said main inlet including a float valve having upper and lower valve seats and said float valve being operable in response to the actuation of the evacuating cylinder device to automatically close the main inlet ball float valve.
Claim 5
Dependent Claim
37 words
A liquid filtering apparatus as defined in claim 1, and a liquid receiving tank for receiving the filtered liquid and a pump and valve controlled pipeline for returning the liquid to the filtering chamber to be refiltered.
Claim 6
Dependent Claim
53 words
A liquid filtering apparatus as defined in claim 4, and said main inlet to the filtering chamber including a ball float valve, said valve having a seat against which the valve will be seated upon the pump being actuated to return the liquid from the tank to the filtering chamber to be refIltered.
Claim 7
Dependent Claim
62 words
A liquid filtering apparatus as defined in claim 4, and said drive roller for the filter paper having an electric motor to operate the same and said liquid return pump having a motor for operating the same and a control box carried on the frame structure and including electric switches for effecting the actuation of the drive roll and return pump motors.
Claim 8
Dependent Claim
107 words
A liquid filtering apparatus as defined in claim 1, and said filtering chamber and gates being respectively pivotally connected to the ends of the filtering chamber for upward pivotal movement from the paper and outward retractable movements at their pivot connections from the filtering chamber and a perforated support for the filtering paper underlying the filtering paper and extending between the end gate openings of the filtering chamber, said lower edges of the end gates serving to fold downwardly the paper over the ends of the perforated support plate therefore and onto the end faces of the filtering chamber and at the lower sides of the openings.
Claim 9
Dependent Claim
38 words
A liquid filtering apparatus as defined in claim 1, and said drive roller for withdrawing the paper through the filtering chamber being motorized and a disposal tray underlying the motorized roller for receiving the dirtied used filtering paper.
Claim 10
Dependent Claim
69 words
A liquid filtering apparatus as defined in claim 8, and said disposal tray underlying one of the end openings of the filtering chamber and an inclined drain board extending from the other opening of the filtering chamber toward said paper disposal tray for receiving any excess liquid from the filtering end openings when the gates have been opened and a drain sump extending downwardly from a paper disposal tray.