초록 ▼

An air filtration system and a helmet for use in the air filtration system are disclosed and utilized to filter air between a head and body of a user and an external environment. The air filtration system and helmet include inner and outer shells that define an air flow channel for channeling air ab

An air filtration system and a helmet for use in the air filtration system are disclosed and utilized to filter air between a head and body of a user and an external environment. The air filtration system and helmet include inner and outer shells that define an air flow channel for channeling air about the user. A fan module is mounted between the inner and outer shells and a scroll housing is mounted adjacent the fan module. The scroll housing includes an air inlet for drawing air into the air filtration system and helmet, and at least one air outlet to distribute air flow to the air flow channel. The helmet includes air exits at front and rear sections that are in fluid communication with the air flow channel and the air outlet or outlets. The air filtration system includes a gown operating as a filter for filtering the air.

대표청구항 ▼

An air filtration system and a helmet for use in the air filtration system are disclosed and utilized to filter air between a head and body of a user and an external environment. The air filtration system and helmet include inner and outer shells that define an air flow channel for channeling air ab

An air filtration system and a helmet for use in the air filtration system are disclosed and utilized to filter air between a head and body of a user and an external environment. The air filtration system and helmet include inner and outer shells that define an air flow channel for channeling air about the user. A fan module is mounted between the inner and outer shells and a scroll housing is mounted adjacent the fan module. The scroll housing includes an air inlet for drawing air into the air filtration system and helmet, and at least one air outlet to distribute air flow to the air flow channel. The helmet includes air exits at front and rear sections that are in fluid communication with the air flow channel and the air outlet or outlets. The air filtration system includes a gown operating as a filter for filtering the air. m 17 further including causing a controller associated with said memory to respond to said address. ing to claim 44 and comprising: a. selecting said base to have a thickness in the range of 0.035 inches to 0.045 inches; and, b. a Shore A hardness in the range of 60 to 80. 46. A process for making a combination of a communication cable, an end seal and sizing tape according to claim 40 and comprising: a. selecting the diameter of said enlarged cable to be larger than the diameter of said aligned passageways so that the diameter of said enlarged cable outside of said aligned passageways is larger than the diameter of said enlarged cable in said passageways. 47. A process for making a combination of a communication cable, an end seal and sizing tape according to claim 40 and comprising: a. selecting said sizing tape to be wrapped around the circumferential wall of said first end seal to have a first external diameter larger than the internal diameter of said first end so that said first external diameter outside of said first end is larger than said first external diameter inside