Vacuum cleaner nozzle

• US 4,458,378 A
• Filed: 01/11/1982
• Issued: 07/10/1984
• Est. Priority Date: 01/07/1981
• Status: Expired due to Term

• Current Assignee: Vorwerk & Company Interholding Gesellschaft Mit Beschrã¤Nkter Haftung (Vorwerk & Company KG)
• Original Assignee: Vorwerk & Company Interholding Gesellschaft Mit Beschrã¤Nkter Haftung (Vorwerk & Company KG)
• Inventors: Helmes, Ludger
• Primary Examiner(s): MOORE, CHRISTOPHER K
• Application Number:
  US06/338,561
• Time in Patent Office: 911 Days
• Field of Search: 15/393, 15/396, 15/401, 15/415 R, 15/416, 15/417, 15/418, 15/420, 15/421, 15/422
• US Class Current: 15/415.1
• CPC Class Codes: A47L 9/02 Nozzles suction nozzles for fluid transport B65G51/00

Abstract

A vacuum cleaner nozzle has a suction passage with a central suction opening, at least one rear support part arranged rearwardly of the central suction opening with an intermediate passage between the suction passage and the rear support part, a connecting suction member communicating with the suction passage, and at least one front support part arranged forwardly of the suction passage and having a surface area corresponding to that of the central suction opening.

Claims

1. A vacuum cleaner nozzle, comprising means forming a suction passage with a central suction opening;

at least one rear support part arranged rearwardly of said suction passage as considered in a nozzle working direction;

an intermediate passage formed between said suction passage and said rear support part;

a connecting suction member communicating with said suction passage;

at least one front support part arranged forwardly of said suction passage as considered in the nozzle working direction; and

an additional intermediate passage formed between said front support part and said suction passage, said suction passage forming means having a bottom orifice and said support parts having bottom faces which are offset in a direction away from an object to be cleaned, relative to said bottom orifice of said suction passage forming means, so as to allow partial penetration of said suction forming means into an object to be cleaned.

2. A vacuum cleaner nozzle as defined in claim 1, wherein said bottom faces of said support parts are offset relative to said bottom orifice of said suction passage forming means by not more than 2 mm.

3. A vacuum cleaner nozzle, comprising means forming a suction passage with a central suction opening;

at least one rear support part arranged rearwardly of said suction passage as considered in a nozzle working direction;

an intermediate passage formed between said suction passage and said rear support part;

a connecting suction member communicating with said suction passage;

at least one front support part arranged forwardly of said suction passage as considered in the nozzle working direction, said suction passage forming means having a bottom orifice and said support parts having bottom faces which are offset, in a direction away from an object to be cleaned, relative to said bottom orifice of said suction passage forming means, so as to allow partial penetration of said suction forming means into an object to be cleaned.

4. A vacuum cleaner nozzle as defined in claim 3;

and further comprising means forming an additional intermediate passage between said front support part and said suction passage.

5. A vacuum cleaner nozzle as defined in claim 4 wherein said connection suction member is arranged at such an angle that an action line of a displacement force acting upon the nozzle intersects said front support part.