JPH0447883Y2 - - Google Patents

Info

Publication number

JPH0447883Y2

JPH0447883Y2 JP17548187U JP17548187U JPH0447883Y2 JP H0447883 Y2 JPH0447883 Y2 JP H0447883Y2 JP 17548187 U JP17548187 U JP 17548187U JP 17548187 U JP17548187 U JP 17548187U JP H0447883 Y2 JPH0447883 Y2 JP H0447883Y2

Authority

JP

Japan

Prior art keywords

switch

chamber

ventilation hole

pressure

filter

Prior art date

1987-11-17

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

• 238000009423 ventilation Methods 0.000 claims description 32
• 239000003566 sealing material Substances 0.000 claims description 7
• 238000006073 displacement reaction Methods 0.000 claims description 3
• 230000035699 permeability Effects 0.000 claims description 3
• 238000007789 sealing Methods 0.000 description 4
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
• -1 dirt Substances 0.000 description 2
• 239000000428 dust Substances 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• 239000000126 substance Substances 0.000 description 2
• 210000000078 claw Anatomy 0.000 description 1
• 230000005489 elastic deformation Effects 0.000 description 1
• 239000007788 liquid Substances 0.000 description 1
• 230000014759 maintenance of location Effects 0.000 description 1
• 238000005192 partition Methods 0.000 description 1
• 230000002093 peripheral effect Effects 0.000 description 1
• 235000015067 sauces Nutrition 0.000 description 1
• 238000004078 waterproofing Methods 0.000 description 1