Guided high pressure presses

• US 5,744,170 A
• Filed: 11/18/1996
• Issued: 04/28/1998
• Est. Priority Date: 03/14/1994
• Status: Expired due to Fees

• Current Assignee: Hall H. Tracy
• Original Assignee: Hall H. Tracy
• Inventors: Hall, H. Tracy
• Primary Examiner(s): Mackey, James P.
• Application Number:
  US08/751,412
• Time in Patent Office: 526 Days
• Field of Search: 100/232, 425/77, 425/330, 425/DIG. 26
• US Class Current: 425/77
• CPC Class Codes: B01J 3/067 Presses using a plurality of pressing members working in different directions
• CPC Class Codes: B30B 11/004 involving the use of very high pressures, for the formation of artificial diamonds or boronitrides B01J3/065
• CPC Class Codes: B30B 11/007 using a plurality of pressing members working in different directions

Abstract

High pressure presses for making diamonds and other hard, crystalline materials. The high pressure presses may contain varying numbers of moveable press members: e.g., a tetrahedral press will have four press members while a cubic press will have six press members. The high pressure presses are equipped with at least one hydraulic ram to provide forward and reverse thrusting force. The movable press members are positioned to move along a rectilinear path and converge at a common point. The ram thrusting force is distributed to every press member and the movable press members are guided to move in a simultaneous and synchronous manner by interconnected guide plates and slidable guide rods which comprise a guide system. The guide system allows for the elimination of one or more hydraulic rams such that the total number of hydraulic rams normally connected to each of the moveable press members will be less than the number of press members. The resulting high pressure press is therefore smaller, less expensive, and easier to maintain compared to high pressure presses known in the art that include a hydraulic ram directly connected to each moveable press member.

Claims

1. A high pressure cubic press device comprising:

six press members at least five of which comprise moveable press members, each of the press members having a face oriented toward a central point and being mechanically interconnected such that the central point is substantially equidistant from each of the faces as the moveable press members are either moved towards or away from each of the other press members;

one to five hydraulic rams each directly connected to one of the moveable press members by means of a piston member for providing pressing forces to the moveable press members and being capable of selectively urging the one to five of the moveable press members connected to a hydraulic ram such that the moveable press members can be selectively moved towards or away from the central point; and

a guide system interconnecting the six press members for distributing the pressing forces from the one to five press members directly connected to a hydraulic ram to other of the moveable press members and for guiding movement of each of the moveable press members such that the moveable press members move simultaneously, synchronously, and symmetrically towards or away from the central point during urging of the at least one hydraulic ram and such that the central point is substantially equidistant from each of the faces of the six press members as the moveable press members are either moved towards or away from the central point, the guide system including rod means for directly connecting each one of the six press members with four of the other press members.

2. A high pressure cubic press device as defined in claim 1, wherein the press device includes a substantially nonmoveable press member and a single hydraulic ram connected to one of the moveable press members lying along a common axis with the substantially nonmoveable press member, and wherein each of the moveable press members is urged either toward or away from the central point as a result of the single hydraulic ram working in concert with the guide system.

3. A high pressure cubic press device as defined in claim 1, wherein the press device includes two hydraulic rams, each of which is separately connected to each of two of the press members lying along a common axis and wherein all six of the press members are moveable and are urged either toward or away from the central point as a result of the two hydraulic rams working in concert with the guide system.

4. A high pressure cubic press device as defined in claim 1, wherein the press device includes a substantially nonmoveable press member and three hydraulic rams, each of the hydraulic rams being separately connected to each of three of the moveable press members, wherein two of the press members connected to hydraulic rams lie along a common axis, wherein the third press member connected to a hydraulic ram lies along a common axis with the substantially nonmoveable press member and wherein each of the press members is urged either toward or away from the central point as a result of the three hydraulic rams working in concert with the guide system.

5. A high pressure cubic press device as defined in claim 1, wherein the press device includes four hydraulic rams lying in a single plane, each of which is separately connected to each of four of the press members and wherein all six of the press members are moveable and are urged either toward or away from the central point as a result of the four hydraulic rams working in concert with the guide system.

6. A high pressure cubic press device as defined in claim 1, wherein the press device includes a substantially nonmoveable press member and five hydraulic rams, each of the hydraulic rams being separately connected to each of the five moveable press members, wherein four of the press members connected to hydraulic rams lie in a single plane, wherein the fifth press member connected to a hydraulic ram lies along a common axis with the nonmoveable press member, and wherein each of the moveable press members is urged either toward or away from the central point as a result of the five hydraulic rams working in concert with the guide system.

7. A high pressure cubic press device as defined in claim 1, wherein the guide means further comprises:

(a) six guide blocks, each of which is secured and fixed to a corresponding one of the press members, each of the guide blocks including a plurality of rectilinear openings therethrough, each of the rectilinear openings being axially aligned with a corresponding rectilinear opening in an adjacent guide block; and

(b) a plurality of guide rods, each of which is slideably connected to two of the guide blocks, each of the guide rods having opposite ends positioned through a pair of corresponding rectilinear openings of adjacent guide blocks.

8. A high pressure cubic press device as defined in claim 1, wherein all of the press members are moveable such that the central point remains substantially fixed in space relative to a room in which the press device is located during movement of the press members either towards or away from the central point.

9. A high pressure cubic press device as defined in claim 1, wherein one of the press members is substantially nonmoveable such that the central point moves relative to a room in which the press device is located and towards or away from the substantially nonmoveable press member during movement of the moveable press members either towards or away from the central point.

10. A high pressure cubic press device as defined in claim 1, wherein the rod means includes twelve guide rods, each of which is slideably connected to and between two of the press members, each of the guide rods having opposite ends positioned through a pair of corresponding rectilinear openings within adjacent press members.

11. A high pressure cubic press device as defined in claim 1, wherein the guide system distributes the pressing forces from the one to five press members connected to a hydraulic ram to the other press members with sufficient force such that the high pressure cubic press yields synthetic diamonds.

12. A high pressure press device comprising:

six press members which are moveable such that each of the press members can be selectively moved towards or away from a substantially fixed central point within a cube, each of the press members having a face oriented toward the central point and being mechanically interconnected such that the central point is substantially equidistant from each of the faces as the press members are either moved towards or away from the central point;

two or four hydraulic rams, each of the hydraulic rams being directly connected to one of the press members by means of a piston member and being capable of providing pressing forces to the press members and selectively urging the press members connected thereto such that the press members can be selectively moved towards or away from the central point; and

a guide system interconnecting the six press members for distributing the pressing forces from the press members directly connected to a hydraulic ram to the other press members and for guiding movement of each of the press members such that the press members move simultaneously, synchronously, and symmetrically towards or away from the central point during urging of the hydraulic rams and such that the central point is substantially equidistant from each of the faces as the press members are either moved towards or away from the central point, the guide system including means for directly connecting each of the press members with all but one of the other press members.

13. A high pressure press device as defined in claim 12, wherein the means for directly connecting each of the press members includes twelve guide rods, each of which is slideably connected to and between two of the press members, each of the guide rods having opposite ends positioned through a pair of corresponding rectilinear openings within adjacent press members.

14. A high pressure press device as defined in claim 12, wherein the guide system distributes the pressing forces from the press members connected to a hydraulic ram to the other press members with sufficient force such that the high pressure cubic press yields synthetic diamonds.

15. A high pressure press device comprising:

six press members at least five of which comprise moveable press members, each of the press members having a face oriented toward a central point and being mechanically interconnected such that the central point is substantially equidistant from each of the faces as the moveable press members are either moved towards or away from the central point;

one to five hydraulic rams, each of the hydraulic rams being connected to a corresponding one of the moveable press members by means of a piston member, each of the one to five hydraulic rams providing pressing forces to the corresponding press member and being capable of selectively urging the corresponding press member such that the corresponding press member can be selectively moved towards or away from the central point; and

a guide system interconnecting the six press members for distributing the pressing forces from each of the press members directly connected to a hydraulic ram to other of the press members and for guiding movement of each of the moveable press members such that the moveable press members move simultaneously, synchronously, and symmetrically towards or away from the central point during urging of the one or more hydraulic rams and such that the central point is substantially equidistant from each of the faces of the six press members as the moveable press members are either moved towards or away from the central point, the guide system comprising;

(a) six guide blocks, each of which is secured and fixed to a corresponding one of the press members, each of the guide blocks including a plurality of rectilinear openings therethrough, each of the rectilinear openings being axially aligned with a corresponding rectilinear opening in an adjacent guide block; and

(b) a plurality of guide rods, each of which is slideably connected to two of the guide blocks, each of the guide rods having opposite ends positioned through a pair of corresponding rectilinear openings of adjacent guide blocks.

16. A high pressure press device defined in claim 15, wherein the press device includes a substantially nonmoveable press member and a single hydraulic ram connected to one of the moveable press members lying along a common axis with the substantially nonmoveable press member, and wherein each of the moveable press members is urged either towards or away from the center point as a result of the single hydraulic ram working in concert with the guide system.

17. A high pressure press device as defined in claim 15, wherein the press device includes two hydraulic rams, each of which is separately connected to each of two of the press members lying along a common axis and wherein all six of the press members are moveable and are urged either towards or away from the central point as a result of the two hydraulic rams working in concert with the guide system.

18. A high pressure press device as defined in claim 15, wherein the press device includes a substantially nonmoveable press member and three hydraulic rams, each of the hydraulic rams being separately connected to each of three of the moveable press members, wherein two of the press members connected to hydraulic rams lie along a common axis, wherein the third press member connected to a hydraulic ram lies along a common axis with the substantially nonmoveable press member and wherein each of the moveable press members is urged either towards or away from the central point as a result of the three hydraulic rams working in concert with the guide system.

19. A high pressure press device as defined in claim 15, wherein the press device includes four hydraulic rams lying in a single plane, each of which is separately connected to each of four of the press members and wherein all six of the press members are moveable and are urged either towards or away from the central point as a result of the four hydraulic rams working in concert with the guide system.

20. A high pressure press device as defined in claim 15, wherein the press device includes a substantially nonmoveable press member and five hydraulic rams, each of the hydraulic rams being separately connected to each of the five moveable press members, wherein four of the press members connected to hydraulic rams lie in a single plane, wherein the fifth press member connected to a hydraulic ram lies along a common axis with the substantially nonmoveable press member, and wherein each of the moveable press members is urged either toward or away from the central point as a result of the five hydraulic rams working in concert with the guide system.