Sing Core is on a mission to change the world! To that end, we’ve achieved dozens of patents, but occasionally, we abandon a patent or patents expire.
Believing that knowledge is power, we’ve decided to share these patents to be utilized for your projects, share them with others, and let everyone know how we at Sing Core are dedicated to providing the tools and knowledge to create a better world. Our goal is to foster a community of collaboration and hopefully address some of society’s needs.
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Read our patents and see if you can use them to improve the world. – Inventor Peter Sing
Note: Only the following invention is open to the public.
Click the link here to read the full patent for yourself.
Patent number: 4815458
Abstract: Protective breathing apparatus comprises a power-driven air blower which
draws contaminated ambient air through selectively appropriate filters and propels the
resultant purified air in controlled flow through conduit means into a flexible transparent
plastic breathing hood encompassing the wearer’s head and releasably secured by a
neck ban around the wearer’s neck. The purified air introduced into the breathing hood is
distributed and circulated through the hood’s interior, the current of air holding the hood
substantially out of contact with the wearer’s head. After the purified air has been
breathed and then exhaled, it is expelled through an exhaust port to the atmosphere.
Optional provision is made for adjusting the temperature of incoming treated air for
maximum user comfort, and for a plurality of breathing hoods to be supplied by a single
purified air source.
Type: Grant
Filed: September 3, 1987
Date of Patent: March 28, 1989
Inventor: Peter Sing
Abstract: Protective breathing apparatus comprises a power-driven air blower which
draws contaminated ambient air through selectively appropriate filters and propels the
resultant purified air in controlled flow through conduit means into a flexible transparent
plastic breathing hood encompassing the wearer’s head and releasably secured by a
neck ban around the wearer’s neck. The purified air introduced into the breathing hood is
distributed and circulated through the hood’s interior, the current of air holding the hood
substantially out of contact with the wearer’s head. After the purified air has been
breathed and then exhaled, it is expelled through an exhaust port to the atmosphere.
Optional provision is made for adjusting the temperature of incoming treated air for
maximum user comfort, and for a plurality of breathing hoods to be supplied by a single
purified air source.
Type: Grant
Filed: September 3, 1987
Date of Patent: March 28, 1989
Inventor: Peter Sing
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Protective breathing apparatus
Sep 3, 1987
Protective breathing apparatus comprises a power-driven air blower which draws
contaminated ambient air through selectively appropriate filters and propels the
resultant purified air in controlled flow through conduit means into a flexible transparent
plastic breathing hood encompassing the wearer’s head and releasably secured by a
neck ban around the wearer’s neck. The purified air introduced into the breathing hood
is distributed and circulated through the hood’s interior, the current of air holding the
hood substantially out of contact with the wearer’s head. After the purified air has been
breathed and then exhaled, it is expelled through an exhaust port to the atmosphere.
Optional provision is made for adjusting the temperature of incoming treated air for
maximum user comfort, and for a plurality of breathing hoods to be supplied by a single
purified air source.
Sep 3, 1987
Protective breathing apparatus comprises a power-driven air blower which draws
contaminated ambient air through selectively appropriate filters and propels the
resultant purified air in controlled flow through conduit means into a flexible transparent
plastic breathing hood encompassing the wearer’s head and releasably secured by a
neck ban around the wearer’s neck. The purified air introduced into the breathing hood
is distributed and circulated through the hood’s interior, the current of air holding the
hood substantially out of contact with the wearer’s head. After the purified air has been
breathed and then exhaled, it is expelled through an exhaust port to the atmosphere.
Optional provision is made for adjusting the temperature of incoming treated air for
maximum user comfort, and for a plurality of breathing hoods to be supplied by a single
purified air source.
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BACKGROUND OF THE INVENTION
This is a Continuation-in-Part Application of application Ser. No. 06/890,137, filed on
07/28/86 now abandoned.
This is a Continuation-in-Part Application of application Ser. No. 06/890,137, filed on
07/28/86 now abandoned.
Numberless situations exist in which unpolluted wholesome air for breathing is not
available without some means for removing the hazardous, irritating or otherwise
objectionable contaminants from the local air supply. For example, in industrial areas
and mines, noxious gases, poisonous fumes and irritating particulate matter are
frequently encountered; in painting and cleaning operations, hazardous solvent vapors
are at least part of the problem in the way of healthy breathing; while sanding and like
procedures produce potentially dangerous dust.
available without some means for removing the hazardous, irritating or otherwise
objectionable contaminants from the local air supply. For example, in industrial areas
and mines, noxious gases, poisonous fumes and irritating particulate matter are
frequently encountered; in painting and cleaning operations, hazardous solvent vapors
are at least part of the problem in the way of healthy breathing; while sanding and like
procedures produce potentially dangerous dust.
The protective masks of the prior art now employed generally in these situations tend to
be cumbersome and confining, with the pressure of their supporting bands precluding
prolonged comfortable use. The same comments may be made for eye-protecting
goggles, where their use in conjunction with breathing masks is required.
be cumbersome and confining, with the pressure of their supporting bands precluding
prolonged comfortable use. The same comments may be made for eye-protecting
goggles, where their use in conjunction with breathing masks is required.
It is a primary object of this invention to provide an effective inexpensive apparatus for
supplying purified healthful air for breathing, with protection and comfort for the eyes
and face of the user at the same time. It is further an object of this invention to provide
an apparatus easily portable and lightweight enough for prolonged wearing without
discomfort. It is also an object of this invention to supply simultaneously the heads and
faces of multiple users with air that has not only been freed of any deleterious gaseous,
liquid or solid impurities but also adjusted in temperature for maximum user comfort.
These and other objects will be explored in detail in the ensuing disclosure.
supplying purified healthful air for breathing, with protection and comfort for the eyes
and face of the user at the same time. It is further an object of this invention to provide
an apparatus easily portable and lightweight enough for prolonged wearing without
discomfort. It is also an object of this invention to supply simultaneously the heads and
faces of multiple users with air that has not only been freed of any deleterious gaseous,
liquid or solid impurities but also adjusted in temperature for maximum user comfort.
These and other objects will be explored in detail in the ensuing disclosure.
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SUMMARY OF THE INVENTION
Ambient air is drawn into the intake of an air blower through a suitable filter medium
which may be selected specifically for the removal of hazardous or objectionable
impurities existing in the air of a given area. The resulting purified air is driven by the air
blower in adjustably controlled flow through flexible conduit means into a flexible
transparent plastic hood or helmet which covers the entire head of the user. The hood is
fittingly held in place around the wearer’s neck by adjustable and releasable fastening
means. In some preferred embodiments, the treated air is passed through flexible
distribution tubes which are positioned around, and attached to, the inner periphery of
the hood; small openings in the distribution tubes permit the treated air to flow into the
interior of the hood and become available for breathing. When in use, the hood’s contact
with the wearer’s head is limited to the neck area and at a few points where the
distribution tubes gently rest. A check-valved exhaust port is provided to allow used air
to escape from the hood.
which may be selected specifically for the removal of hazardous or objectionable
impurities existing in the air of a given area. The resulting purified air is driven by the air
blower in adjustably controlled flow through flexible conduit means into a flexible
transparent plastic hood or helmet which covers the entire head of the user. The hood is
fittingly held in place around the wearer’s neck by adjustable and releasable fastening
means. In some preferred embodiments, the treated air is passed through flexible
distribution tubes which are positioned around, and attached to, the inner periphery of
the hood; small openings in the distribution tubes permit the treated air to flow into the
interior of the hood and become available for breathing. When in use, the hood’s contact
with the wearer’s head is limited to the neck area and at a few points where the
distribution tubes gently rest. A check-valved exhaust port is provided to allow used air
to escape from the hood.
Another embodiment of the breathing hood eliminates the air distribution tubes, and the
incoming treated air is directed by baffle around the wearer’s head, resulting in a
cushion of air which holds the hood’s envelope out of contact with the head except at
the neck, for maximum comfort. By use of multiple conduit means from a single air
blower source, a plurality of breathing hoods may be supplied with wholesome air
simultaneously. In addition, when conditions warrant the air supply may be warmed or
cooled before use for the benefit and comfort of any and all users.
incoming treated air is directed by baffle around the wearer’s head, resulting in a
cushion of air which holds the hood’s envelope out of contact with the head except at
the neck, for maximum comfort. By use of multiple conduit means from a single air
blower source, a plurality of breathing hoods may be supplied with wholesome air
simultaneously. In addition, when conditions warrant the air supply may be warmed or
cooled before use for the benefit and comfort of any and all users.