IP Library Granted Patent US 10,183,849
Granted Patent B2
US 10,183,849 · App. 15/443,570 · Granted Jan 22, 2019

Rope guidance for second device used on DuraHoist arm

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Quick Facts
Patent No.
US 10,183,849
App. No.
15/443,570
Granted
Jan 22, 2019
Kind
B2
Abstract

A line guidance device ( 40 ) is provided for use with a confined space entry/retrieval hoist and fall protection anchorage system ( 10 ) and includes a line guide ( 46 ) that guides a line from an extend/retract line device ( 22 ) past another extend/retract line device ( 20 ) with both devices ( 20, 22 ) mounted on a backside ( 24 ) of a mast ( 12 ) of the system ( 10 ).

Claims (38)

1. A confined space hoist and fall protection anchorage system for raising and lowering a worker into and out of a confined space, the system comprising:

a longitudinally extending mast;

a masthead;

first and second extend/retract line devices carried on the mast and positioned on a first side of the mast, the first extend/retract line device having a first line extending from the first extend/retract line device to the masthead to connect to a worker suspended by the system, the second extend/retract line device having a second line extending from the second extend/retract line device to the masthead to connect to the worker suspended by the system, the first extend/retract line device mounted on the mast between the second extend/retract line device and the masthead; and

a line guidance device comprising:

a mast mount structure connected to the mast, and

an extend/retract line device mount structure positioning the first line extend/retract device on the first side of the mast, and

a line guide located on the line guidance device between the mount structures to guide the second line between the mast and the first extend/retract line device as the second line travels from and to the second extend/retract line device and the masthead as a worker suspended from the second line is lowered and raised by the system.

2. The system of claim 1 further comprising a mast arm mounted on the mast adjacent an end of the mast and extending from a second side of the mast to the masthead, the second side being an opposite side of the mast from the first side.

3. The system of claim 1 wherein the line guide is a pulley mounted in the line guidance device for rotation.

4. The system of claim 1 wherein:

the mast mount structure is a pair of spaced flanges located on opposite sides of the mast and secured to the mast with a plurality of fasteners; and

the extend/retract line device mount structure is a plate configured to secure the first extend/retract line device with a plurality of fasteners.

5. The system of claim 1 wherein the masthead comprises a pair of masthead pulleys, one of the masthead pulleys being configured to guide the first line for movement as the first line travels to and from the first extend/retract line device, and the other masthead pulley being configured to guide the second line for movement as the second line travels to and from the second extend/retract line device.

6. The system of claim 5 wherein one of the masthead pulleys is mounted in the masthead at a first location, the other of the masthead pulleys is mounted in the masthead at a second location, and the second location is spaced further from the mast than the first location.

7. The system of claim 1 wherein the mast extends in a vertical direction.

8. The system of claim 1 wherein the first extend/retract line device is a winch and the first line is a winch cable.

9. The system of claim 1 wherein the second extend/retract line device is a self-retracting lifeline device and the second line is a lifeline.

10. A confined space hoist and fall protection anchorage system for raising and lowering a worker into and out of a confined space, the system comprising:

a longitudinally extending mast;

a masthead;

first and second device mount locations on the mast and configured to mount respective first and second extend/retract line devices to the mast so that the first and second extend/retract line devices are positioned on a first side of the mast, with the first line extend/retract line device having a first line extending from the first extend/retract line device to the masthead to connect to a worker suspended by the system, and the second extend/retract line device having a second line extending from the second extend/retract line device to the masthead to connect to the worker suspended by the system, the first extend/retract line device mount location located on the mast between the masthead and the second extend/retract line device mount location; and

a line guidance device comprising:

a mast mount structure connected to the mast at the first device mount location, and

a device mount structure configured to position the first extend/retract line device on the first side of the mast, and

a line guide located on the line guidance device between the mount structures, the line guide configured to guide the second line between the mast and the first extend/retract line device as the second line travels from and to the second extend/retract line device and the masthead as a worker suspended from the second line is lowered and raised by the system with the first extend/retract device mounted on the device mount structure and the second extend/retract line device mounted at the second device mount location.

11. The device of claim 10 wherein the line guide is a pulley mounted in the line guidance device for rotation.

12. The device of claim 10 further comprising:

the first extend/retract line device mounted to the device mount structure; and

the second extend/retract line device mounted at the second device mount location and positioned on the first side of the mast.

13. A line guidance device for use with a confined space hoist and fall protection anchorage system for raising and lowering a worker into and out of a confined space, the system comprising a longitudinally extending mast, a masthead, first and second extend/retract line devices positioned on a first side of the mast, and a mast arm mounted on the mast adjacent an end of the mast and extending from a second side of the mast to the masthead, the second side being an opposite side of the mast from the first side, the first extend/retract line device having a first line extending from the first extend/retract line device to the masthead to connect to a worker suspended by the system, the second extend/retract line device having a second line extending from the second extend/retract line device to the masthead to connect to the worker suspended by the system, the first extend/retract line device mounted on the mast between the second extend/retract line device and the masthead, the line guidance device comprising:

a mast mount structure connectable to the mast;

an extend/retract line device mount structure configured to position the first line extend/retract device on the first side of the mast; and

a line guide located on the device between the mount structures to guide the second line between the mast and the first extend/retract line device as the second line travels from and to the second extend/retract line device and the masthead as a worker suspended from the second line is lowered and raised by the system.

14. The system of claim 13 wherein the line guide is a pulley mounted in the line guidance device for rotation.

15. The system of claim 13 wherein:

the mast mount structure is a pair of spaced flanges located to be positioned on opposite sides of the mast and secured to the mast with a plurality of fasteners; and

the extend/retract line device mount structure is a plate configured to secure the first extend/retract line device with a plurality of fasteners.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 17, 2025
From: HONEYWELL INTERNATIONAL INC.
To: HONEYWELL SAFETY PRODUCTS USA, INC.
Reel/Frame 070538/0643 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2018
From: SVOBODA, RADIM; HROUZEK, JAN
To: HONEYWELL SPOL. S.R.O.
Reel/Frame 047334/0767 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2017
From: HONEYWELL SPOL, S R.O.
To: HONEYWELL INTERNATIONAL INC.
Reel/Frame 041386/0084 →