US3788787A — Hydraulic metal powder press

Claim 1

Independent Claim 196 words

A metal powder press, comprising: frame means; lower ram means supported on said frame means for vertical movement relative thereto; a tool matrix mounted on said lower ram means and movable vertically therewith, said tool matrix having means defining an opening therethrough the axis of which is vertically aligned; lower press means receivable in the lower end of said opening in said tool matrix; upper ram means having upper press means thereon adapted to be moved into and out of the upper end of said tool matrix; metal powder storage means; and filling means connected to said metal powder storage means for selectively filling said opening in said tool matrix with a metal powder, said filling means comprising a platform and mounting means for mounting said platform in said lower ram means and being free of a direct attachment to said tool matrix but movable vertically with said tool matrix, a fill shoe and support means for supporting said fill shoe for sliding movement into and out of communication with said opening in said tool matrix and power drive means for moving said fill shoe between said in and out positions of communications with said opening.

Claim 2

Dependent Claim 196 words

A metal powder press, comprising: frame means; lower ram means supported on said frame means for vertical movement relative thereto; a tool matrix mounted on said lower ram means and movable vertically therewith, said tool matrix having means defining an opening therethrough the axis of which is vertically aligned; lower press means receivable in the lower end of said opening in said tool matrix; upper ram means having upper press means thereon adapted to be moved into and out of the upper end of said tool matrix; metal powder storage means; and filling means connected to said metal powder storage means for selectively filling said opening in said tool matrix with a metal powder, said filling means comprising a platform and mounting means for mounting said platform in said lower ram means and being free of a direct attachment to said tool matrix but movable vertically with said tool matrix, a fill shoe and support means for supporting said fill shoe for sliding movement into and out of communication with said opening in said tool matrix and power drive means for moving said fill shoe between said in and out positions of communications with said opening.

Claim 3

Dependent Claim 52 words

A metal powder press according to claim 1, wherein said filling means further includes means for vertically adjusting said platform relative to the upper surface of said tool matrix so that the plane of said platform can be adjusted to be flush and coplanar with said upper surface of said tool matrix.

Claim 4

Dependent Claim 74 words

A metal powder press according to claim 2, wherein said adjusting means comprises a threaded support sleeve secured to said lower ram means and a threaded support column engaged with said threaded support sleeve and secured to said platform for supporting same, a hand wheel secured to said support column whereby a rotation of said hand wheel will rotate said support column to cause said threaded interconnection to effect an adjustment of said platform.

Claim 5

Dependent Claim 45 words

A metal powder press according to claim 1, including a two part scale means, one part being connected in association with said frame means and the other part being connected in association with said tool matrix and including means for adjusting the relative positions therebetween.

Claim 6

Dependent Claim 20 words

A metal powder press according to claim 1, including means for limiting the downward movement of said upper ram means.

Claim 7

Dependent Claim 133 words

A metal powder press, comprising: frame means; lower ram means supported on said frame means for vertical movement; a hollow tool matrix supported on said lower ram means and movable vertically therewith; lower press means receivable in the lower end of said hollow tool matrix; upper ram means having upper press means thereon adapted to be moved into and out of the upper end of said tool matrix; and at least two adjustable stop means for limiting the downward movement of said upper ram means relative to said tool matrix, said stop means being in the form of supporting columns which are concealed within the press frame and finely adjustable in height by means of a common shaft with the aid of worm gears and having removable pressure plates at their upper ends.

Claim 8

Dependent Claim 133 words

A metal powder press, comprising: frame means; lower ram means supported on said frame means for vertical movement; a hollow tool matrix supported on said lower ram means and movable vertically therewith; lower press means receivable in the lower end of said hollow tool matrix; upper ram means having upper press means thereon adapted to be moved into and out of the upper end of said tool matrix; and at least two adjustable stop means for limiting the downward movement of said upper ram means relative to said tool matrix, said stop means being in the form of supporting columns which are concealed within the press frame and finely adjustable in height by means of a common shaft with the aid of worm gears and having removable pressure plates at their upper ends.

Claim 9

Dependent Claim 42 words

A metal powder press according to claim 6, wherein the supporting columns comprise a threaded portion which is driven by a worm gear, and a sleeve portion seated on the threaded portion, and the screw thread is covered with a protective sleeve.

Claim 10

Dependent Claim 196 words

In a hydraulic metal powder press having a frame, a matrix having a mold cavity therein, which matrix is movable in the frame in vertical direction by a pressure-medium supplied lower ram shaft connected to same, an upper ram having an upper press member which can be moved from above into the mold cavity of the matrix, which upper ram is vertically movable in the frame and is supplied with pressure medium, a lower press member which extends from below into the mold cavity, a fill device for filling the mold cavity with metal powder, which fill device can be moved together with the matrix in vertical direction and which has a filling shoe which can be moved slidingly on the upper surface of the matrix and on a platform which lies in the same plane as the upper surface of the matrix, which filling shoe is connected to a storage reservoir for metal powder and includes a piston-cylinder arrangement for moving the filling shoe back and forth, comprising the improvement wherein said platform carrying the fill device is supported solely on said lower ram shaft and being free of any direct attachment to said matrix.

Claim 11

Dependent Claim 196 words

In a hydraulic metal powder press having a frame, a matrix having a mold cavity therein, which matrix is movable in the frame in vertical direction by a pressure-medium supplied lower ram shaft connected to same, an upper ram having an upper press member which can be moved from above into the mold cavity of the matrix, which upper ram is vertically movable in the frame and is supplied with pressure medium, a lower press member which extends from below into the mold cavity, a fill device for filling the mold cavity with metal powder, which fill device can be moved together with the matrix in vertical direction and which has a filling shoe which can be moved slidingly on the upper surface of the matrix and on a platform which lies in the same plane as the upper surface of the matrix, which filling shoe is connected to a storage reservoir for metal powder and includes a piston-cylinder arrangement for moving the filling shoe back and forth, comprising the improvement wherein said platform carrying the fill device is supported solely on said lower ram shaft and being free of any direct attachment to said matrix.

Claim 12

Dependent Claim 38 words

Hydraulic metal powder press according to claim 8, in which said platform of the fill device is secured on the upper end of a post which is adjustably connected with respect to height to the lower ram shaft.

Claim 13

Dependent Claim 115 words

Hydraulic metal powder press according to claim 8, including a stop element secured to the lower ram shaft, an operating element for interrupting the pressure medium supply to the lower ram, which operating element can be adjusted by the stop element, and including adjustable stops which are arranged spaced apart by the operating element, of which stops one lies above and the other one below the stop element being connected to the lower ram shaft, whereby by abutting of the stop element against the one or the other stop the operating element is moved in the one or in the other direction and through this the pressure medium supply to the lower ram is interrupted.

Claim 14

Dependent Claim 27 words

Hydraulic metal powder press according to claim 10, in which the adjustable stops are connected to indicating elements through which the position of the stops is visible.

Claim 15

Dependent Claim 17 words

Hydraulic metal powder press according to claim 11, in which each stop has a scale associated therewith.

Claim 16

Dependent Claim 23 words

Hydraulic metal powder press according to claim 12, in which each stop and the associate scale can be adjusted by common operating means.

Claim 17

Dependent Claim 186 words

Hydraulic metal powder press with a frame, a matrix with a mold cavity therein, which matrix can be moved in the frAme in vertical direction through a lower ram, an upper ram with an upper press member which can be moved from above into the mold cavity of the matrix, which upper ram can be moved vertically in the frame, a lower press member which extends from below into the mold cavity, wherein the improvement comprises at least two stationary support posts which are adjustable in their length and the upper ends of each of which are free and serve as stops for the upper ram and limit its downward movement, said support posts consisting of a lower threaded spindle and an upper tube screwed onto the threaded spindle, which tube has at its upper end a pressure plate, and in which drive means for rotating the threaded spindle relative to the tube are provided, said drive means including one shaft common for the support posts, on which shaft worms are keyed and which engage worm gears arranged on the lower end of each threaded spindle.

Claim 18

Dependent Claim 186 words

Hydraulic metal powder press with a frame, a matrix with a mold cavity therein, which matrix can be moved in the frAme in vertical direction through a lower ram, an upper ram with an upper press member which can be moved from above into the mold cavity of the matrix, which upper ram can be moved vertically in the frame, a lower press member which extends from below into the mold cavity, wherein the improvement comprises at least two stationary support posts which are adjustable in their length and the upper ends of each of which are free and serve as stops for the upper ram and limit its downward movement, said support posts consisting of a lower threaded spindle and an upper tube screwed onto the threaded spindle, which tube has at its upper end a pressure plate, and in which drive means for rotating the threaded spindle relative to the tube are provided, said drive means including one shaft common for the support posts, on which shaft worms are keyed and which engage worm gears arranged on the lower end of each threaded spindle.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-01-28	1977-07-30	1978-01-29	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-01-28	1981-07-30	1982-01-29	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-01-28	1985-07-30	1986-01-29	$7700.00	Window Closed / Lapsed

Hydraulic metal powder press

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