Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
160 words
In combination a fiexible surgical mask having a sheet of air permeable material adapted to be secured to and over the face of the wearer and having securing ties connected thereto, and ducting formed in and constituting an inseparable part of said mask, said ducting comprising a pair of vacuum intake ports at the inside of said mask, each said port comprising a flattened, hollow substantially triangular body having a connecting neck that extends rearwardly beyond a rear edge of said mask when the mask is positioned upon the head of the wearer, said body diverging outwardly from said connecting neck to form a relatively narrow elongated mouth, whereby when said mask is secured to the head of the wearer and said connecting neck is coupled to a source of negative pressure, air is drawn through the mask to facilitate breathing of the wearer and exhalations of the wearer are exhausted through the port to the source of negative pressure.
Claim 2
Dependent Claim
160 words
In combination a fiexible surgical mask having a sheet of air permeable material adapted to be secured to and over the face of the wearer and having securing ties connected thereto, and ducting formed in and constituting an inseparable part of said mask, said ducting comprising a pair of vacuum intake ports at the inside of said mask, each said port comprising a flattened, hollow substantially triangular body having a connecting neck that extends rearwardly beyond a rear edge of said mask when the mask is positioned upon the head of the wearer, said body diverging outwardly from said connecting neck to form a relatively narrow elongated mouth, whereby when said mask is secured to the head of the wearer and said connecting neck is coupled to a source of negative pressure, air is drawn through the mask to facilitate breathing of the wearer and exhalations of the wearer are exhausted through the port to the source of negative pressure.
Claim 3
Dependent Claim
26 words
The apparatus of claim 1 wherein each said body is securely bonded to the inside of said mask with its neck protruding beyond the mask edge.
Claim 4
Dependent Claim
27 words
The apparatus of claim 2 including a Y-shaped connecting hose having a pair of branches adapted to be detachably connected to respective ones of said connecting necks.
Claim 5
Dependent Claim
57 words
The apparatus of claim 3 including a surgical gown and a vacuum harness therefore, said harness comprising sections of perforated tubing and means for securing said tubing sections to the inside of said gown, a main vacuum duct connected to said vccuum harness, and a connecting hose coupled between said main vacuum duct and said Y-shaped hose.
Claim 6
Dependent Claim
23 words
The apparAtus of claim 4 including means for separately and individually adjusting air flow from said mask ports and from said vacuum harness.
Claim 7
Dependent Claim
22 words
The apparatus of claim 1 wherein each said body is securely bonded to the inside of said sheet of air permeable material.
Claim 8
Dependent Claim
27 words
The apparatus of claim 6 including a bifurcated connecting conduit having a pair of branches adapted to be detachably connected to respective ones of said connecting necks.
Claim 9
Dependent Claim
23 words
The combination of claim 7 including a surgical gown, and means connected with said connecting conduit for withdrawing air from within said gown.
Claim 10
Dependent Claim
227 words
In combination a flexible surgical mask comprising a sheet of air permeable material adapted to be secured to and over the nose and mouth and below the eyes of a wearer and having securing ties fixed thereto, a first vacuum intake duct secured to the inside of the mask at one side thereof and having a connecting neck extending rearwardly, and a second vacuum intake duct secured to the inside of the mask at an opposite side thereof and having a connecting neck extending rearwardly, each said duct having an intake port opening within the mask at points thereof adapted to be located at the corners of the mouth of the wearer, said duct connecting necks including coupling means for detachable connection to a source of negative pressure, a surgical gown, and means connected with said connecting neck coupling means and with said gown for exhausting air from said gown whereby when the mask and gown are secured to a wearer with the intake duct ports positioned between the mask and the wearer''s cheeks, and when the duct connecting neck coupling means are connected to a source of negative pressure, breathing of the wearer is facilitated by the supply of air drawn through the mask to the vacuum intake duct ports, and exhalations of the wearer are withdrawn through duct ports to said source of negative pressure.
Claim 11
Dependent Claim
227 words
In combination a flexible surgical mask comprising a sheet of air permeable material adapted to be secured to and over the nose and mouth and below the eyes of a wearer and having securing ties fixed thereto, a first vacuum intake duct secured to the inside of the mask at one side thereof and having a connecting neck extending rearwardly, and a second vacuum intake duct secured to the inside of the mask at an opposite side thereof and having a connecting neck extending rearwardly, each said duct having an intake port opening within the mask at points thereof adapted to be located at the corners of the mouth of the wearer, said duct connecting necks including coupling means for detachable connection to a source of negative pressure, a surgical gown, and means connected with said connecting neck coupling means and with said gown for exhausting air from said gown whereby when the mask and gown are secured to a wearer with the intake duct ports positioned between the mask and the wearer''s cheeks, and when the duct connecting neck coupling means are connected to a source of negative pressure, breathing of the wearer is facilitated by the supply of air drawn through the mask to the vacuum intake duct ports, and exhalations of the wearer are withdrawn through duct ports to said source of negative pressure.
Claim 12
Dependent Claim
37 words
The combination of claim 9 wherein each said duct includes a flattened hollow body, and wherein each said intake port includes an elongated mouth formed at the end of a respective one of said flattened hollow bodies.