GB2604826A - Head mountable air respirator - Google Patents
Head mountable air respirator Download PDFInfo
- Publication number
- GB2604826A GB2604826A GB2207973.5A GB202207973A GB2604826A GB 2604826 A GB2604826 A GB 2604826A GB 202207973 A GB202207973 A GB 202207973A GB 2604826 A GB2604826 A GB 2604826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air purifying
- purifying respirator
- face
- powered air
- head mountable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—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
- A62B18/006—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 with pumps for forced ventilation
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—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
- A62B18/04—Gas helmets
- A62B18/045—Gas helmets with fans for delivering air for breathing mounted in or on the helmet
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—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
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/084—Means for fastening gas-masks to heads or helmets
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A head mountable powered air purifying respirator (10) is configured to connect, as a single unit, to a user's head or to headwear to be or being worn by a user. The head mountable powered air purifying respirator (10) comprises an annular casing (12), which is attachable to and detachable from the user's head or to headwear, for example standard unmodified safety helmet/hard hat. The annular casing (12) provides a foundation for a power source (16), which is operable to power/control one or more filtration units (14), which is/are attachable to the casing (12). The power source (16) is operable to power the one or more filtration units (14) to filter contaminated air from an environment in which the air purifying respirator is used. A detachable visor (18), including a face-shield (30) is included. The visor (18) is attachable to and detachable from a front edge of the annular casing (12) such that in use the visor (18) extends down from the annular casing (12) and defines an enclosed volume between the face-shield (30) and the user's face; the filtration units (14) are configured to expel filtered air to the enclosed volume between the face-shield (30) and the user's face.
Claims (31)
1. A head mountable powered air purifying respirator configured to connect, as a single unit, to a userâ s head or to headwear to be or being worn by a user, wherein the head mountable powered air purifying respirator comprises: an annular casing, which is attachable to and detachable from a userâ s head or to headwear to be or being worn by a user; and wherein the annular casing includes: a power source, which is operable to power/control one or more filtration units, which is/are attachable to the casing; and a detachable visor, including a face-shield, wherein, the visor is attachable to and detachable from a front edge of the annular casing such that in use the visor extends down from the annular casing and defines an enclosed volume between the face-shield and a userâ s face; wherein the power source is operable to power the one or more filtration units to filter contaminated air from an environment in which the air purifying respirator is used; and wherein the filtration units are configured to expel filtered air to the enclosed volume between the face-shield and the userâ s face.
2. A head mountable powered air purifying respirator as claimed in claim 1 , wherein the visor comprises a pivotal rod attachment, which facilitates single point attachment and detachment of the visor to/from the annular casing, wherein the annular casing includes a complementary latching mechanism configured to receive and retain the rod attachment.
3. A head mountable powered air purifying respirator as claimed in claim 2, wherein the latching mechanism includes a latch member and one or more spring biased connectors, which is/are configured to apply a spring force to the latch member and/or the rod attachment such that, in use the latch mechanism is operable to retain the rod attachment and therefore the visor in a predetermined position.
4. A head mountable powered air purifying respirator as claimed in claim 3, wherein the latch member includes a jaw into which the rod attachment is received to retain the visor as part of the air purifying respirator.
5. A head mountable powered air purifying respirator as claimed in claim 3 or 4, wherein the latch member is pivotal such that the jaw is pivotal relative to the rod attachment member to retain and to release the rod attachment.
6. A head mountable powered air purifying respirator as claimed in any of claims 3, 4 or 5, wherein the one or more spring biased connectors and the rod attachment each comprise complementary end profiles, which are engageable with each other to control extent of rotation of the visor to one or more predetermined positions.
7. A head mountable powered air purifying respirator as claimed in claim 6, wherein the complementary end profiles act as guides and stops to control movement of the visor and to lock the visor between at least two predetermined positions, namely a deployed position, where the visor extends downwards from the annular casing and an undeployed position, where the visor no longer shields the userâ s face.
8. A head mountable powered air purifying respirator as claimed in any preceding claim, wherein the face-shield of the visor furthers comprise a flange, which projects inwards and facilitates connection of the visor to a forward edge of the annular casing.
9. A head mountable powered air purifying respirator as claimed in claim 8, when dependent on claims 2 to 7, wherein the rod attachment extends from the flange.
10. A head mountable powered air purifying respirator as claimed in claim 9, when dependent on claims 3 to 8, wherein the flange further comprises a bracket connecting the rod attachment to the flange and offsetting the rod attachment from the flange to ensure alignment of the rod attachment and the latch member
11. A head mountable powered air purifying respirator as claimed in claim 8, wherein the flange includes one or more holes, which correspond in number and location with the one or more filtration units such that, in use there is fluid communication between each of the one or more holes and their corresponding filtration unit .
12. A head mountable powered air purifying respirator as claimed in claim 11 , wherein the one or more holes is/are each be shaped to correspond with the shape of an outlet from the corresponding filtration unit, such that in use each outlet aligns with and engages with a corresponding hole.
13. A head mountable powered air purifying respirator as claimed in claim 11 or 12, wherein the one or more holes include a seal configured to provide an airtight seal between each hole and its corresponding filtration unit.
14. A head mountable powered air purifying respirator as claimed in claim 8, wherein the flange further comprises one or more locating elements, which are arranged to engage with an underside of the annular casing, such that, in use the visor is retained in a deployed position to ensure respiratory protection, eye protection and face protection.
15. A head mountable powered air purifying respirator as claimed in claim 14, wherein the one or more locating elements include magnets .
16. A head mountable powered air purifying respirator as claimed in any preceding claim, wherein the visor further comprises a face-seal, wherein the face- seal connects to the face-shield and the userâ s face to form the enclosed volume between the face-shield and the userâ s face.
17. A head mountable powered air purifying respirator as claimed in claim 16, wherein a perimeter of the face-seal may be attached to a perimeter of the face- shield.
18. A head mountable powered air purifying respirator as claimed in claim 17, wherein an inner perimeter of the face-seal comprises a flexible and compliant edge/rim which resiliently conforms to the contour of the userâ s face, jaw and/or neck to ensure the enclosed volume between the face-shield and the userâ s face is maintained whilst the air purifying respirator is in use.
19. A head mountable powered air purifying respirator as claimed in claim 16, 17 or 18, wherein the face-seal includes an upper outward projecting flange, wherein the flange engages with the visor to create the enclosed volume between the face- shield and the userâ s face.
20. A head mountable powered air purifying respirator as claimed in claim 19, wherein the one or more filtration units include a fan element and a filter element, wherein the fan facilitates air flow through the filtration unit, thereby cleaning air to be breathed in by the user.
21. A head mountable powered air purifying respirator as claimed in claim 20, wherein the fan element includes a body retained in the annular casing, an inlet and an outlet, wherein the filter element is received adjacent the inlet and the outlet is arranged to be in fluid communication with the enclosed volume between the face- shield and the userâ s face.
22. A head mountable powered air purifying respirator as claimed in claim 20 or 21 , wherein the filter element comprises a removable cartridge, which includes filter medium and a housing, wherein the filter medium is housed in the housing, which include at least a partially open inlet face, thereby allowing air flow into the filter medium.
23. A head mountable powered air purifying respirator as claimed in claim 22, wherein the removable cartridge is attachable to and detachable from the inlet of the fan element.
24. A head mountable powered air purifying respirator as claimed in any of claims 22 and 23, wherein the filtration unit further comprise a perishable pre-filter element, wherein the pre-filter element is insertable into and removable from the housing and wherein, in use, the pre-filter element is located outwardly of the filter medium.
25. A head mountable powered air purifying respirator as claimed in claim 24, wherein the housing includes an edge slot, which facilitates insertion and removal of the pre-filter element.
26. A head mountable powered air purifying respirator as claimed in any preceding claim, wherein the annular casing includes at least one of a forward mounting or rearward mounting element operable to facilitate attachment and detachment of the air purifying respirator to headwear.
27. A head mountable powered air purifying respirator as claimed in any preceding claim, wherein the annular casing includes a forward mounting element and a rearward mounting element.
28. A head mountable powered air purifying respirator as claimed in claim 27, wherein at least one of the forward mounting element and the rearward mounting element include a retractable fastener, which is configured to engage with a corresponding edge of the headwear to which the air purification respirator is being attached.
29. A head mountable powered air purifying respirator as claimed in claim 28, wherein the retractable fastener is biased to a retracted position, such that retraction is automatic when engaging the air purifying respirator to headwear.
30 A retrofittable headwear mountable powered air purifying respirator comprising the powered air purifying respirator as claimed in any preceding claim.
31. A safety helmet comprising a powered air purifying respirator according to any preceding claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1916018.3A GB201916018D0 (en) | 2019-11-04 | 2019-11-04 | Head mountable air respirator |
| PCT/EP2020/080969 WO2021089626A1 (en) | 2019-11-04 | 2020-11-04 | Head mountable air respirator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202207973D0 GB202207973D0 (en) | 2022-07-13 |
| GB2604826A true GB2604826A (en) | 2022-09-14 |
Family
ID=69059133
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1916018.3A Ceased GB201916018D0 (en) | 2019-11-04 | 2019-11-04 | Head mountable air respirator |
| GB2207973.5A Pending GB2604826A (en) | 2019-11-04 | 2020-11-04 | Head mountable air respirator |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB1916018.3A Ceased GB201916018D0 (en) | 2019-11-04 | 2019-11-04 | Head mountable air respirator |
Country Status (2)
| Country | Link |
|---|---|
| GB (2) | GB201916018D0 (en) |
| WO (1) | WO2021089626A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3822698A (en) * | 1973-01-22 | 1974-07-09 | R Guy | Powered air-purifying respirator helmet |
| GB2541672A (en) * | 2015-08-25 | 2017-03-01 | Jsp Ltd | A powered air respirator kit |
| CN109123875A (en) * | 2018-09-18 | 2019-01-04 | 金华市多绿奇五金制品有限公司 | A kind of crash helmet |
| WO2019079162A1 (en) * | 2017-10-16 | 2019-04-25 | Gentex Corporation | Modular respiratory protection system |
-
2019
- 2019-11-04 GB GBGB1916018.3A patent/GB201916018D0/en not_active Ceased
-
2020
- 2020-11-04 GB GB2207973.5A patent/GB2604826A/en active Pending
- 2020-11-04 WO PCT/EP2020/080969 patent/WO2021089626A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3822698A (en) * | 1973-01-22 | 1974-07-09 | R Guy | Powered air-purifying respirator helmet |
| GB2541672A (en) * | 2015-08-25 | 2017-03-01 | Jsp Ltd | A powered air respirator kit |
| WO2019079162A1 (en) * | 2017-10-16 | 2019-04-25 | Gentex Corporation | Modular respiratory protection system |
| CN109123875A (en) * | 2018-09-18 | 2019-01-04 | 金华市多绿奇五金制品有限公司 | A kind of crash helmet |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202207973D0 (en) | 2022-07-13 |
| GB201916018D0 (en) | 2019-12-18 |
| WO2021089626A1 (en) | 2021-05-14 |
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