Nova Patents
US2718655A

Vacuum dust pan and reel

Abstract

This record has no abstract on file.

US2718655A, drawing sheet 1
Sheet 1 of 1

Term

Term ended

Expired 27 September 1972, 54 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

2 claims: 2 independent, 0 dependent

  1. 1
    I claim:In a vacuum dust pan and reel, the combination of an upper flange having a central opening, a lower flange, an inner rotatable drum between said flanges, a fixed hub within said drum to which said upper and lower flanges are attached, a vacuum cleaner hose on said drum, a retracting spring attached between said hub and drum and exerting a force for assisting in rewinding said hose on said drum, a dust pan in the central opening of the upper flange with its bottom inside the fixed hub, said pan having a vacuum suction orifice in its bottom, a conduit means adapted to connect said orifice to a source of vacuum, said fixed hub being concentric with and of smaller diameter than the drum to define an annular chamber therebetween, a vacuum pipe extending between said chamber and the conduit means, a socket mounted on the drum and having a passage therethru communicating at one end with the annular chamber and the other end of the passage communicating with the hose, whereby said hose may be connected to the source of vacuum at any position of the drum relative to the vacuum pipe, and a two way valve between the orifice in the dust pan and the vacuum pipe to the annular chamber whereby the said orifice may be closed when the vacuum to the annular chamber and hose is open and vice versa,, so that a working vacuum is maintained in either the pan or the vacuum cleaner hose. References Cited in the file of this patent UNITED STATES PATENTS Hall__________________June 9, Bernhard______________Aug. 9, Devau________________Jan. 20, dust 1931 1932 1953 1,809,337 1,870,887
  2. 2
    2,625,703
Independent claims2