# US 5,701,814 A · Hydraulic press assembly

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- Number: US 5,701,814 A
- Document ID: US5701814A
- Status: Granted
- Kind: A
- Application number: 08/692,000
- Filed: 1996-08-02
- Granted: 1997-12-30
- Earliest claimed: 1996-08-02
- Assignees: Robert Herpst
- Inventors: Robert Herpst; Ruben A. Diaz
- Web page: https://patentgrep.com/patent/US5701814A

## CPC

- B30B 9/321: {for consolidating empty containers, e.g. cans}
- B30B 1/326: {operated by hand or foot, e.g. using hydraulic jacks}
- B30B 15/04: Frames; Guides
- Y10T 29/49: Method of mechanical manufacture
- Y10T 29/49826: Assembling or joining
- Y10T 29/49893: Peripheral joining of opposed mirror image parts to form a hollow body
- B30B: PRESSES IN GENERAL (producing ultra-high pressure or ultra-high pressure and high temperature to effect modifications of a substance, e.g. for making artificial diamonds B01J3/00 ){(compressing means for refuse receptacles B65F1/1405)}
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A hydraulic press assembly and method of making the same in which a substantial portion of the housing encompassing the press is formed of a unibody construction from structural tubing to provide a durable lightweight hydraulic press.

## Claims

### Claim 1

A hydraulic press assembly comprising:
a) hydraulic pump means for generating an upwardly directed pressure on a platform;
b) a platform for receiving a substance to be compressed; and
c) a housing containing at least a portion of said hydraulic pump means and said platform, which together form a load beating assembly, said housing comprising at least four sides including a top side, a bottom side and a pair of opposed sides with at least three of the sides formed from a rectangular solid having a hollow core.

### Claim 2 (depends on 1)

The hydraulic press assembly of claim 1 wherein the housing is made of structural tubing.

### Claim 3 (depends on 1)

The hydraulic press assembly of claim 1 wherein the housing is made of metal or a composite material.

### Claim 4 (depends on 3)

The hydraulic press assembly of claim 3 wherein the housing is made of steel or aluminum.

### Claim 5 (depends on 1)

The hydraulic press assembly of claim 1 wherein the housing comprises a front side, said front side having a lower portion comprised of a removable panel and an upper portion, said upper portion containing an opening.

### Claim 6 (depends on 5)

The hydraulic press assembly of claim 5 wherein the upper portion of the housing further comprises opposed runners for receiving a protective shield, a protective shield; and means for moving the protective shield along said runners from a first position allowing access to the substance to be compressed to a second position preventing access to the substance to be compressed.

### Claim 7 (depends on 1)

The hydraulic press assembly of claim 1 further comprising pressure exerting means for exerting a downwardly directed pressure on the substance to be compressed.

### Claim 8

A method of forming a hydraulic press assembly comprising:
a) hydraulic pump means for generating an upwardly directed pressure on a platform;
b) a platform for receiving a substance to be compressed; and
c) a housing containing at least a portion of said hydraulic pump means and said platform, which together form a load bearing assembly, said housing comprising at least four sides including a top side, a bottom side and a pair of opposed sides,
said method comprising forming a least three of the sides of the housing from a rectangular solid having a hollow core.

### Claim 9 (depends on 8)

The method of claim 8 comprising forming at least three sides of the housing from structural tubing.