Firefighter's emergency smoke filter
DCFirst Claim
1. A method for prolonging breathing through a self contained breathing apparatus for use in emergencies comprising the steps of:
- a) providing a self contained breathing apparatus including a mask securable over the face of an individual and a regulator removably couplable to said mask containing an air supply, and an emergency smoke filter removably couplable to said mask in place of said regulator;
b) coupling said regulator and air supply to said mask through an opening in said mask;
c) utilizing said air supply as a primary source of breathable air until said air supply malfunctions or is depleted;
d) removing said regulator and air supply from the opening in said mask;
e) replacing said regulator and air supply with said smoke filter by coupling said filter to said opening in said mask; and
f) utilizing said filter system to filter smoke or toxins from air in the environment.
1 Assignment
Litigations
0 Petitions
Accused Products
Abstract
An emergency smoke filter for use by firefighters and the like has two stages: the first stage is a paper filter and the second stage is a charcoal filter. The emergency smoke filter is intended for use only in the event that a firefighters primary source of breathing clean air (a self-contained breathing apparatus or SCBA) malfunctions or runs out of air in a toxic, smoke filled environment. The emergency smoke filter does not replace an SCBA but augments it in case the SCBA is not working. The emergency smoke filter attaches to the firefighters SCBA in the slot for the regulator once the regulator is removed. The emergency smoke filter is intended for only one use and it can be deposed of thereafter.
-
Citations
20 Claims
-
1. A method for prolonging breathing through a self contained breathing apparatus for use in emergencies comprising the steps of:
-
a) providing a self contained breathing apparatus including a mask securable over the face of an individual and a regulator removably couplable to said mask containing an air supply, and an emergency smoke filter removably couplable to said mask in place of said regulator; b) coupling said regulator and air supply to said mask through an opening in said mask; c) utilizing said air supply as a primary source of breathable air until said air supply malfunctions or is depleted; d) removing said regulator and air supply from the opening in said mask; e) replacing said regulator and air supply with said smoke filter by coupling said filter to said opening in said mask; and f) utilizing said filter system to filter smoke or toxins from air in the environment. - View Dependent Claims (2, 3, 4)
-
-
5. An emergency smoke filter kit comprising:
-
a self contained breathing apparatus including a mask securable over a face of an individual, and a regulator removably coupled to said mask; and a smoke filter removably couplable to said mask of said self contained breathing apparatus in place of said regulator. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. An emergency smoke filter kit comprising:
-
a self contained breathing apparatus including a mask securable over a face of an individual, and a regulator removably coupled to said mask; and a smoke filter removably couplable to said mask of said self contained breathing apparatus in place of said regulator, said smoke filter comprising a filter case having at least one aperture extending therethrough, said filter case being substantially cylindrical in shape and including an outer sidewall with an open end and a closed end, with said at least one aperture extending through said sidewall of said filter case; a first filter means for filtering air, said first filter means comprises a first substantially cylindrical filter disposed within said filter case; and mounting means for mounting said filter case to said mask of said self contained breathing apparatus, said mounting means comprising a case cover removably coupled to said open end of said filter case, and an adapter having an air passage extending therethrough, said adapter being coupled to said case cover such that said air passage is in fluid communication with said first filter means, said adapter being selectively engageable to said mask in place of said regulator, said adapter comprising a cylindrical projection having first and second ends and being coupled to said case cover at said first end of said cylindrical projection, with said air passage extending through said cylindrical projection, and a flange coupled to said second end of said cylindrical projection and extending orthogonally relative to said air passage, said flange being substantially planar and having a pair of opposed straight sides and a pair of opposed arcuate sides. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification