|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||454/069; 251/901; 454/156|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 2|
A film valve assembly for a heating, ventilation and air conditioning system includes a frame, two roller mechanisms disposed on the frame, and a film valve disposed between the roller mechanisms under tension. A tension unit includes a tension rod having two ends that are connected respectively to first and second supporting seats on the base wall by first and second retaining units. The first retaining unit includes a spring-biased retaining element that is biased to engage a retaining hole in the first supporting seat.
1. A film valve assembly for a heating, ventilation and air conditioning system comprising:a frame including a pair of left and right sidewalls, a base wall interconnecting and disposed between said left and right sidewalls, and a pair of first and second supporting seats projecting from said base wall and adjacent respectively to said left and right sidewalls, each of said first and second supporting seats being formed with a retaining hole;two roller mechanisms disposed respectively at two opposite sides of said base wall;a film valve disposed between ...