# US 5,349,755 A · Portable remote drum opening device

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- Number: US 5,349,755 A
- Document ID: US5349755A
- Status: Granted
- Kind: A
- Application number: 07/762,431
- Filed: 1991-09-19
- Granted: 1994-09-27
- Earliest claimed: 1991-09-19
- Inventors: Carl R. Haywood
- Web page: https://patentgrep.com/patent/US5349755A

## CPC

- B67B 7/24: {Hole-piercing devices}
- B67B: APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS (opening or closing devices attached to, or incorporated in, containers or container closures B65D)

## Abstract

For safely opening drums that may contain hazardous materials, a remotely controllable drum opener attachment is provided, which is powered by air or electricity from a distance by means of a long power cord. The attachment is clamped in position on the drum by an appropriate frame.

## Claims

### Claim 1

A system for opening drums that may contain hazardous materials without exposing an operator to contamination from materials in the drum or injury in the act of opening the drums, comprising in combination:
a power driven opening mechanism,
a framework for firmly attaching the opening mechanism in place on the drum in a position for opening the drum,
a power line for carrying power to operate said mechanism from a remote location away from the drums whereby said operator is not exposed to contamination or injury,
manually operable control means at said remote location, wherein said drum has a substantially cylindrical outer periphery with an upper end with a substantially flat surface surrounded by a rim and wherein said framework further comprises a bracket extending diametrically across the flat surface and terminating in clamping members extending downwardly to mate with the cylindrical drum outer periphery.

### Claim 2 (depends on 1)

The system of claim 1 wherein said bracket extending diametrically across the flat surface comprises telescoping means for adjusting the length of said bracket, thereby to fit different drum diameters.

### Claim 3 (depends on 2)

The system of claim 2 wherein the opening mechanism comprises a punch for punching through the drum operable by an accompanying reciprocatable hydraulic cylinder mounted on said bracket for engaging the punch with said flat surface of the drum.

### Claim 4

A system for opening drums that may contain hazardous materials without exposing an operator to contamination from materials in the drum or injury in the act of opening the drums, comprising in combination:
a power driven opening mechanism,
a framework for firmly attaching the opening mechanism in place on the drum in a position for opening the drum,
a power line for carrying power to operate said mechanism from a remote safe location away from the drums whereby said operator is not exposed to contamination or injury, and
manually operable control means at said remote location,
wherein the opening mechanism comprises a bung rotation wrench operable by a rotary reversible motor.

### Claim 5 (depends on 4)

The system of claim 4 wherein the motor is pneumatically powered, and said power line comprises two lines for respectively driving the motor in opposite directions.