Draeger Safety UK Limited

Gordon Wrigley

Paul Nicholas Townsend

Jason Edward Allan

David Cheesman

James Farnaby

Darin Ferguson

Evan Hannard

A back plate for a breathing apparatus comprises a back plate frame for supporting a cylinder of breathable gas; and a pressure reduction valve configured to receive breathing gas from a cylinder of breathable gas; and a resiliently deformable element configured to support the pressure reduction valve on the back plate frame so as to permit relative movement between the pressure reduction valve and the back plate frame.

Back plate for a breathing apparatus

Disclosed is a cylinder-retaining apparatus for a breathing apparatus comprising first and second fixing point and a strap apparatus secured to the first fixing point and the second fixing point. The strap apparatus forms a main strap loop for extending around and securing one or more cylinders. The cylinder-retaining apparatus is configurable in: i) an expanded configuration in which the main strap loop provides a first effective length for securing a first number of cylinders; and ii) a contracted configuration in which a portion of a strap of the strap apparatus is folded to form a secondary strap loop and the secondary strap loop is secured to a third fixing point such that the main strap loop forms a second effective length which is shorter than the first effective length and for securing a second number of cylinders less than the first number of cylinders.

Cylinder-retaining apparatus for a breathing apparatus

There is disclosed a harness for breathing apparatus comprising a structural support member for supporting a vessel of breathable gas, a waist belt, and a pivot joint mechanism coupling the structural support member to the waist belt. The pivot joint mechanism comprises a release part which is movable to decouple the structural support member from the waist belt.

Harness for breathing apparatus

A structural support memberfor a harnessfor breathing apparatus, the structural support member being generally elongate and arranged in use to support a cylinder of breathable gas, the structural support member comprising: a frame having; a lower portionarranged in use to support a first end of a cylinder; an upper portion arranged in use to support a second opposed end of the cylinder; and first and second side limbscoupling the upper and lower portions and defining a voidtherebetween, in a substantially central region of the frame.

Structural support member for a harness for breathing apparatus

A two-part device arranged for threaded assembly comprising a first part having a first threaded section provided on an external generally cylindrical surface and a second part having a second threaded section arranged for threaded engagement with the first threaded section and provided on an internal generally cylindrical surface. A locking opening is provided on the first or second part and a corresponding locking protrusion is provided on the other of the first or second part. When the first and second parts are threaded together by means of the first and second threaded sections, the locking opening and locking protrusion are drawn closer together and upon reaching a threshold the locking protrusion engages with the locking opening. This inhibits the first and second parts from being threadedly disengaged.

Two-part device

The present invention relates to a gas-cylinder retaining assemblyfor retaining a gas-cylinder on a harness for breathing apparatus. The retaining assembly comprises a straparranged in use to be coupled to the harness and a retaining portion of which is arranged to pass around at least a portion of the cylinder; a tensioning devicearranged for tightening the retaining portion of the strap around the cylinder such that the cylinder is held to the harness, and wherein a free portion of the strap, having a free end, extends from the tensioning device; and a retaining bucklearranged for retaining the free portion of the strap, the retaining bucklecomprises a positioning slotthrough which in use the retaining portion of the strap passes; a pivot memberwhich in use is located between the cylinder and the retaining portion of the strap; and a retaining slot arranged in use to receive the free end of the strap. In use the retaining buckleis pivotable between at least a loading position in which the free end of the strap can be inserted into the retaining slot, and a retaining position in which at least part of the free portion of the strap is held between the retaining buckle and the retaining portion of the strap.

Gas-cylinder retaining assembly

A harnessfor breathing apparatus, comprising: a structural support memberhaving a fixing portion, and at least one straphaving a loop. The strap is arranged to be releasably attached to the structural support member. The fixing portion comprises a first slotthrough which a portion of the strap is arranged to pass in use; and a first anchor memberlaterally spaced from the first slot extending in a direction substantially parallel to the first slot and arranged in use to releasably locate at least partly within the loop of the strap through a first side of the loop.

A shoulder strap for a harness for breathing apparatus includes a first elongate strap portion generally extending along a first longitudinal axis; a second elongate strap portion attached to the first strap portion and generally extending along a second longitudinal axis that is oblique to the first axis; and a first attachment portion for attaching a first end of the shoulder strap to the harness in use and a second attachment portion for attaching a second end of the shoulder strap to the harness in use.

Shoulder strap

A structural support memberfor a harnessfor breathing apparatus, the structural support member being generally elongate and arranged in use to support a cylinder of breathable gas and one or more components operatively associated with the breathing apparatus, wherein the structural support member comprises first and second partsdefining therebetween a housing for retaining one or more of the components.

Growing community of inventors

Tyne and Wear, United Kingdom

Gordon Wrigley