US3643477A — Programmed centrifuge drum for treating sheetlike…

Claim 1

Independent Claim 191 words

An apparatus of the class described comprising a drum which is rotatable about its axis and having a perforated jacket which is rigidly fixed on an axial hollow shaft for introducing a treatment medium from the outside, said drum being divided into a number of chambers, which chambers are connected with the axial hollow shaft by means for selectively feeding the treatment medium to the chambers, characterized in that said selective feeding means comprises means defining a plurality of fluid flow paths, each extending from a different one of said chambers through said axial hollow shaft and out from said drum through said shaft for connection to a source of treatment medium, plural valve means interposed along said fluid flow paths for separate control of the flow of fluid through each path and valve control means located remotely of said drum and coupled to said valve means for controlling operation of the same during and independently of rotation of said drum, whereby the amount of treatment medium supplied to material wound upon said drum can be applied in different amounts to different regions of the material according to a predetermined program.

Claim 2

Independent Claim 191 words

An apparatus of the class described comprising a drum which is rotatable about its axis and having a perforated jacket which is rigidly fixed on an axial hollow shaft for introducing a treatment medium from the outside, said drum being divided into a number of chambers, which chambers are connected with the axial hollow shaft by means for selectively feeding the treatment medium to the chambers, characterized in that said selective feeding means comprises means defining a plurality of fluid flow paths, each extending from a different one of said chambers through said axial hollow shaft and out from said drum through said shaft for connection to a source of treatment medium, plural valve means interposed along said fluid flow paths for separate control of the flow of fluid through each path and valve control means located remotely of said drum and coupled to said valve means for controlling operation of the same during and independently of rotation of said drum, whereby the amount of treatment medium supplied to material wound upon said drum can be applied in different amounts to different regions of the material according to a predetermined program.

Claim 3

Dependent Claim 86 words

Apparatus according to claim 1, wherein the chambers are defined by walls perpendicular to the axis of rotation of the drum and said means defining a plurality of fluid flow paths include a further shaft extending axially of the drum and through openings in said walls and chambers, said plural valve means being associated with said further shaft and walls, said further shaft being shiftable axially to control said valve means to permit communication symmetrically between a central chamber and chambers on both sides of same.

Claim 4

Dependent Claim 33 words

Apparatus according to claim 2, wherein said plural valve means comprise valve bodies resiliently mounted on said further shaft to control said in said walls openings upon axial shifting of said further shaft.

Claim 5

Dependent Claim 72 words

Apparatus according to claim 2, wherein said further shaft is hollow and has openings communicating with the central chamber and has exterior annular grooves arranged to be positioned opposite the openings in said walls when said further shaft is in one position thus to allow communication between chambers separated by respective walls, said grooves being positioned away from said wall openings to prevent such communication when said further shaft is axially shifted.

Claim 6

Dependent Claim 105 words

Apparatus according to claim 1, wherein said means defining a plurality of fluid flow paths includes a further hollow shaft connected to the control means for axial and annular movement relatively thereto, a drum antechamber, said further shaft feeding said antechamber feed pipes leading to the remaining chambers, said plural valve means controlling flow to said feed pipes conduits leading to said plural valve means, said further shaft being provided with flow-through openings which may selectively be brought into correspondence of position with said conduits leading to said plural valve means for opening and closing same, by shifting the further shaft relatively to its axis.

Claim 7

Dependent Claim 113 words

Apparatus according to claim 1 wherein the means defining a plurality of fluid flow paths includes a further hollow shaft coaxial with the drum and a cylinder moveable in said further shaft and terminating within a central chamber, closure means closing the end of said cylinder, a regulating bar connected to said closure means and extending to a control device, openings in said cylinder, feed pipes opening into respective chambers, and means effecting fluid flow communication between said further shaft and respective of said feed pipes when said cylinder is shifted by said control device through said regulating bar to position said openings in a preselected manner relatively to said further hollow shaft.

Claim 8

Dependent Claim 121 words

Apparatus according to claim 1 wherein the means defining a plurality of fluid flow paths includes several pipes, lying one inside the other and coaxial with the drum, the diameters of such pipes being of such dimensions that there is a flow-through space between the pipes, the pipe end facing the drum being tightly and rigidly secured to respective annular openings in the chamber walls on one side of the drum, said feeding means further including a distribution block and valve means associated with same, each pipe end outside the drum being secured to said distribution block, and pipes connecting the chambers situated on one side of the drum to symmetrically respective chambers lying on the other side of the drum.

Claim 9

Dependent Claim 88 words

Apparatus according to claim 1, wherein said means defining a plurality of fluid flow paths includes a drum antechamber into which said hollow shaft opens, feed pipes leading from the antechamber to different ones of the remaining chambers respectively, said plural valve means comprising valves arranged to control flow through said feed pipes, and said valve control means including distribution valve means and pressure tubes connecting said valves and said distribution valve means for selectively controlling said valves to control fluid communication between said antechamber and other chambers.

Claim 10

Dependent Claim 99 words

Apparatus according to claim 8, further including a distribution block having a stationary member and a rotary member which turns inside said stationary member, said stationary member being provided with plural fluid flow passageways each connected to an associated one of the distribution valve means, said rotary member also being provided with a plurality of fluid flow passageways each connected to one of said pressure tubes and coupling means between said rotary and stationary members allowing pressure communication between each valve and an associated valve pressure tube regardless of the rotation of the rotary member inside the stationary member.

Claim 11

Dependent Claim 37 words

Apparatus according to claim 9 wherein the coupling means comprises a plurality of annular chambers formed about the mating surfaces of said members, each mating chamber being in fluid communication with an associated passageway of each member.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-02-21	1975-08-23	1976-02-22	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-02-21	1979-08-23	1980-02-22	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-02-21	1983-08-23	1984-02-22	$7700.00	Window Closed / Lapsed

Programmed centrifuge drum for treating sheetlike material

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