The cold-air inflatable portable projection screen has two inflatable towers that are connected by an inflatable tube or cross member. A fine mesh material may be suspended between the two towers to form a projection screen. Tethers connected to the towers serve to anchor the structure to the ground. Electric blowers or fans continuously blow air into the structure to keep it erect.
申请公布号
US6008938(A)
申请公布日期
1999.12.28
申请号
US19970852514
申请日期
1997.05.07
申请人
SUEHLE, JOHN S.;SUEHLE, JOSEPH E.;SUEHLE, ANDREW G.
发明人
SUEHLE, JOHN S.;SUEHLE, JOSEPH E.;SUEHLE, ANDREW G.