# US 10,441,829 B2 · Pulling element for pulling a closing element out of a filter of an escape filter device, escape filter devices, escape filter device system and method for mounting an escape filter device system

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- Number: US 10,441,829 B2
- Document ID: US10441829B2
- Status: Granted
- Kind: B2
- Application number: 14/781,670
- Filed: 2014-02-15
- Published: 2016-03-03
- Granted: 2019-10-15
- Earliest claimed: 2013-04-02
- Assignees: Dräger Safety AG & Co. KGaA
- Applicants: Dräger Safety AG & Co. KGaA; Simon Vogt; Michael Rosert; Rüdiger Müller; Joachim Radicke
- Inventors: Simon Vogt; Michael Rosert; Rüdiger Müller; Joachim Radicke
- Web page: https://patentgrep.com/patent/US10441829B2

## CPC

- A62B 25/00: Devices for storing {or holding or carrying} respiratory or breathing apparatus
- A62B 7/10: with filter elements
- A62B 17/04: Hoods
- B66F 19/00: Hoisting, lifting, hauling or pushing, not otherwise provided for
- A62B 18/00: Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes {or incorporating a pump or compressor for reducing the inhalation effort}(A62B17/00 takes precedence; anaesthetic masks A61M16/06)
- A62B 23/00: Filters for breathing-protection purposes (gas-filters in general B01D)
- A62B: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING (valves specially adapted for medical use A61M39/00; life-saving devices, apparatus or methods specially adapted for use in water B63C9/00; divers' equipment B63C11/00; specially adopted for use with aircraft, e.g. parachutes, ejector seats, {B64D17/00, B64D25/10}; rescue devices peculiar to mining E21F11/00)
- B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00)

## Abstract

A pulling element is provided for automatically pulling a closing element out of a filter of an escape filter device. An escape filter device is also provided that has a hood and a filter integrated into the hood, with at least one such pulling element. An escape filter device system is also provided having such an escape filter device and a device shell. A method is provided for mounting an escape filter device system.

## Claims

### Claim 1

A pulling element for pulling a closing element out of a filter of an escape filter device, which is arranged in a device shell in a resting position with a resting distance to the device shell, wherein the escape filter device is moveable into a removal position with an increased removal distance to the resting distance, the pulling element comprising:
a first fastening section for fastening the pulling element to the closing element; and
a second fastening section for fastening on an inner side of the device shell, wherein the two fastening sections have a fastening distance to one another, which is smaller than or equal to the removal distance.

### Claim 2 (depends on 1)

A pulling element in accordance with claim 1, wherein the pulling element is inflexible.

### Claim 3 (depends on 1)

A pulling element in accordance with claim 1, wherein the pulling element is flexible.

### Claim 4 (depends on 1)

A pulling element in accordance with claim 1, wherein at least one of the first fastening section and the second fastening section comprises a snap-in element.

### Claim 5 (depends on 1)

A pulling element in accordance with claim 1, wherein at least one of the first fastening section and the second fastening section comprises flexible barbs.

### Claim 6 (depends on 1)

A pulling element in accordance with claim 1, further comprising a stopping element between the first fastening section and the second fastening section.

### Claim 7 (depends on 1)

A pulling element in accordance with claim 1, further comprising at least one of a mounting control element and a gripping element at one end of the pulling element.

### Claim 8

An escape filter device comprising:
a hood;
a filter, which has a filter inlet side and a filter outlet side, integrated into the hood;
a closing element; and
a pulling element for pulling out the closing element from the filter, wherein the filter inlet side or the filter outlet side is closed in a gas-tight manner by means of the closing element and the pulling element is arranged on the closing element, the escape filter device is arranged in a device shell in a resting position with a resting distance to the device shell, and the escape filter device is moveable into a removal position with an increased removal distance to the resting distance, the pulling element comprising:
a first fastening section for fastening the pulling element to the closing element; and
a second fastening section for fastening on an inner side of the device shell, wherein the two fastening sections have a fastening distance to one another, which is smaller than or equal to the removal distance.

### Claim 9 (depends on 8)

An escape filter device in accordance with claim 8, wherein the closing element is a first closing element that closes the filter inlet side and the pulling element is a first pulling element and further comprising:
a second closing element closing the filter outlet side; and
a second pulling element for pulling out the second closing element from the filter, the second pulling element being arranged on the second closing element, the second pulling element comprising a second pulling element first fastening section for fastening the second pulling element to the second closing element and a second pulling element second fastening section for fastening the second pulling element on an inner side of the device shell, a distance from the second pulling element first fastening section to the second pulling element second fastening section being smaller than or equal to the removal distance.

### Claim 10

An escape filter device system, comprising:
a device shell having a first inner side and a second inner side;
an escape filter device comprising:
a hood;
a filter, which has a filter inlet side and a filter outlet side, integrated into the hood;
a closing element; and
a pulling element for pulling out the closing element from the filter, wherein the filter inlet side or the filter outlet side is closed in a gas-tight manner by means of the closing element and, the pulling element comprises a first fastening section for fastening the pulling element to the closing element and a second fastening section, wherein the two fastening sections have a fastening distance to one another, which is smaller than or equal to a removal distance between the device shell and the escape filter device; and
a pulling element holding device, wherein:
the escape filter device is arrangeable in a resting position in the device shell and the device shell is openable for transferring the escape filter device into a removal position; and
the pulling element holding device is arranged on one of the first inner side and the second inner side of the device shell for fastening the second fastening section of the pulling element to the pulling element holding device, wherein the pulling element and the pulling element holding device are configured and are coordinated with one another such that the closing element is automatically pulled out of the filter during the opening of the device shell upon reaching the removal distance between the device shell and the escape filter device.

### Claim 11 (depends on 10)

An escape filter device system in accordance with claim 10, wherein the device shell has a device shell bottom portion with the first inner side and a device shell top portion with the second inner side, which top portion and bottom portion are pivotably connected to one another.

### Claim 12 (depends on 11)

An escape filter device system in accordance with claim 11, wherein the device shell bottom side and the device shell top side are designed as hard components.

### Claim 13 (depends on 12)

An escape filter device system in accordance with claim 12, further comprising a spring element arranged to press against the device shell bottom portion and the device shell top portion with the device shell being closed.

### Claim 14 (depends on 11)

An escape filter device system in accordance with claim 11, wherein the device shell has a closing element for closing and opening the device shell bottom portion and the device shell top portion.

### Claim 15 (depends on 10)

An escape filter device system in accordance with claim 10, further comprising a guide on the inner side of the device shell for guiding the pulling element.

### Claim 16 (depends on 10)

An escape filter device system in accordance with claim 10, further comprising a retaining device for retaining the escape filter device.

### Claim 17 (depends on 10)

An escape filter device system in accordance with claim 10, wherein:
the closing element is a closing element that closes the filter inlet side and the pulling element is a first pulling element;
the pulling element holding device is a first pulling element holding device;
the escape filter device further comprises: a second closing element closing the filter outlet side; and a second pulling element for pulling out the second closing element from the filter;
the escape filter device system further comprises a second pulling element holding device;
the second pulling element holding device is arranged on the other of the first inner side and the second inner side;
the second pulling element comprises a second pulling element first fastening section for fastening the second pulling element to the second closing element; and a second pulling element second fastening section for fastening the second pulling element to the second pulling element holding device, wherein the two second pulling element fastening sections have a fastening distance to one another, which is smaller than or equal to the removal distance between the device shell and the escape filter device, whereby the second pulling element and the second pulling element holding device are configured and are coordinated with one another such that the second closing element is automatically pulled out of the filter during the opening of the device shell upon reaching the removal distance between the device shell and the escape filter device.

### Claim 18

A method for mounting an escape filter device system the method comprising the steps of:
providing an escape filter device comprising a hood, a filter, which has a filter inlet side and a filter outlet side, integrated into the hood, a first closing element, a second closing element, a first pulling element and a second pulling element, each pulling element comprising a first fastening section for fastening the pulling element to the closing element and a second fastening section for fastening on an inner side of a device shell, wherein the two fastening sections have a fastening distance to one another, which is smaller than or equal to a removal distance;
providing the device shell, in which the escape filter device is arrangeable in a resting position and which is openable for transferring the escape filter device into a removal position;
fastening the first fastening section of the first pulling element to the first closing element;
fastening the second fastening section of the first pulling element to a first pulling element holding device at a first position on the inner side of the device shell;
fastening the first fastening section of the second pulling element to the second closing element;
closing the device shell until reaching a mounting position, wherein the device shell is not yet completely closed in the mounting position, and
with the device shell in the mounting position, fastening the second fastening section of the second pulling element to a second pulling element holding device at a second position on the inner side of the device shell; and
closing the device shell completely.

### Claim 19 (depends on 18)

A method in accordance with claim 18, wherein:
the first pulling element is designed as a flexible pulling element;
the first fastening section of the first and second pulling elements is designed as a first barb and the second fastening section of the at least one of the first and second pulling elements is designed as a second barb;
the first closing element has a pulling element fastening device with an opening; and
a first end of the at least one of the first and second pulling elements is pulled through the opening of the pulling element fastening device of the first closing element until the first barb is pulled through the opening of the pulling element fastening device and subsequently the second end of the at least one of the first and second pulling elements is pulled through an opening of the first pulling element holding device for creating the fastening distance until the second barb of the at least one of the first and second pulling elements is pulled through the opening of the first pulling element holding device.

### Claim 20 (depends on 19)

A method in accordance with claim 19, wherein the at least one of the first and second pulling elements has a stopping element between the first and second barbs, wherein after the pulling of the second barb of the at least one of the first and second pulling elements through the first pulling element holding device on the inner side of the device shell, the stopping element stops at the pulling element holding device and prevents a further pulling of the at least one of the first and second pulling elements through the opening of the pulling element holding device.