Abstract A miniature vacuum cleaner device operated by self-contained dry cells or rechargeable equivalents, and capable of applying light vacuum or pressure through specialized nozzles for such functions as cleaning phonograph records, optical slides, postage stamps and small articles which may be easily disturbed from position upon the occurrence of a substantial draft. The casing element includes means for storing a most commonly used nozzle, and conveniently disassembles for replacement of battery cells and filters. A flexible hose connectable to an exhaust end of the device permits the application of simultaneous pressure and suction to a surface area being cleaned whereby the article bearing the surface does not tend to lift.
A nozzle for a vacuum cleaning device comprising: a relatively rigid tubular coupling member having a flared free end, a resilient flexible membrane of rubber-like material, said membrane including a peripherally-located contractal flange surrounding said free end, and a centrally disposed portion placed under tension by such engagement, there being a concentrially disposed opening in said last mentioned portion resiliently distortable in the plane of the membrane to conform sufficiently to an engaged object to at least partially seal said opening and maintain a sufficient pressure differential to allow said object to be retrieved; said membrane being removable for purposes of replacement with a similar membrane having a differently sized opening.
Claim 2
Dependent Claim
111 words
A nozzle for a vacuum cleaning device comprising: a relatively rigid tubular coupling member having a flared free end, a resilient flexible membrane of rubber-like material, said membrane including a peripherally-located contractal flange surrounding said free end, and a centrally disposed portion placed under tension by such engagement, there being a concentrially disposed opening in said last mentioned portion resiliently distortable in the plane of the membrane to conform sufficiently to an engaged object to at least partially seal said opening and maintain a sufficient pressure differential to allow said object to be retrieved; said membrane being removable for purposes of replacement with a similar membrane having a differently sized opening.