초록 ▼

A nasal mask has a shell portion that is a hollow enclosure with a rearwardly facing opening that is defined by edge portions of the shell portion. A resiliently deformable endless interface member engages and extends around the edge portion of the opening and forms a seal between the shell portion

A nasal mask has a shell portion that is a hollow enclosure with a rearwardly facing opening that is defined by edge portions of the shell portion. A resiliently deformable endless interface member engages and extends around the edge portion of the opening and forms a seal between the shell portion and the user's face. The shell portion and the interface member are generally symmetrical about a median place. The shell portion has two gas inlet orifices, one on each side of the median place. The shell portion has a tubular exhalation outlet extending from the face of the mask. The mask is further provided with a balloon exhalation valve connected to the exhalation outlet for alternately venting and sealing the interior of the mask during exhalation and inhalation, respectively.

대표청구항 ▼

A nasal mask has a shell portion that is a hollow enclosure with a rearwardly facing opening that is defined by edge portions of the shell portion. A resiliently deformable endless interface member engages and extends around the edge portion of the opening and forms a seal between the shell portion

A nasal mask has a shell portion that is a hollow enclosure with a rearwardly facing opening that is defined by edge portions of the shell portion. A resiliently deformable endless interface member engages and extends around the edge portion of the opening and forms a seal between the shell portion and the user's face. The shell portion and the interface member are generally symmetrical about a median place. The shell portion has two gas inlet orifices, one on each side of the median place. The shell portion has a tubular exhalation outlet extending from the face of the mask. The mask is further provided with a balloon exhalation valve connected to the exhalation outlet for alternately venting and sealing the interior of the mask during exhalation and inhalation, respectively. mented system as recited in claim 5, wherein said language is an operations control language. 7. A computer implemented system as recited in claim 5, wherein said first expression is a target expression. 8. A computer implemented system as recited in claim 5, wherein said second expression is a condition expression. es (Feb. 27, 1996). Press Release, "ParkerVision, Inc. Expands its Product Line," Parkervision Marketing and Manufacturing Headquarters, 2 Pages (Mar. 7, 1996). Press Release, "ParkerVision, Files Patents for its Research of Wireless Technology," Parkervision Marketing and Manufacturing Headquarters, 1 Page (Mar. 28, 1996). Press Release, "Parkervision, Inc. Announces First Significant Sale of Its Cameraman.RTM. Three-Chip System," Parkervision Marketing and Manufacturing Headquarters, 2 Pages (Apr. 12, 1996). Press Release, "Parkervision, Inc. Introduces New Product Line For Studio Production Market," Parkervision Marketing and Manufacturing Headquarters, 2 Pages (Apr. 15, 1996). Press Release, "Parkervision, Inc. Announces Private Placement of 800,000 Shares," Parkervision Marketing and Manufacturing Headquarters, 1 Page (Apr. 15, 1996).