US 7,095,305 B2Granted

Retractable magnetic sweeper

OwnerHsuan-Sen Shiaoinventor

Life of this patent

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Abstract

A retractable magnetic sweeper includes a shell member, a retractable tubular member, a moving member, a connecting bar member, and a magnetic member. The shell member defines a receiving space. The retractable tubular member includes a lower tubular section connected to the shell member, and an upper tubular section mounted slidably on the lower tubular section. The moving member is mounted on the upper tubular section. The connecting bar member is mounted axially within the retractable tubular member, and includes an operating end portion extending into the upper tubular section and connected to the moving member, and a connecting end portion extending into the lower tubular section. The magnetic member is mounted in the receiving space, and is connected to the connecting end portion. The moving member is operable to move the magnetic member downward to an operative state, and upward to a non-operative state.

Claims17

Dependent claims

A retractable magnetic sweeper, comprising:

a shell member defining a receiving space;
a retractable tubular member including a lower tubular section connected to said shell member, and an upper tubular section mounted slidably on said lower tubular section;
a moving member mounted on said upper tubular section of said retractable tubular member;
a connecting bar member mounted axially within said retractable tubular member, and including an operating end portion extending into said upper tubular section of said retractable tubular member and connected to said moving member, and a connecting end portion extending into said lower tubular section of said retractable tubular member;
and
a magnetic member mounted in said receiving space of said shell member, and connected to said connecting end portion of said connecting bar member;
wherein said moving member is operable to move said magnetic member downward to an operative state, and upward to a non-operative state,
wherein said shell member includes a bottom wall extending below said magnetic member, a top portion opposite to said bottom wall, a plurality of side walls extending between said bottom wall and said top portion, and at least one wheel attached to one of said side walls,
wherein said shell member is formed as a hollow body having a trapezial cross-section, said side walls including a pair of first side walls opposite to each other, and a pair of second side walls opposite to each other and each extending between said first side walls, and
wherein said shell member further includes a guiding wall connected between said bottom wall and one of said second side walls.

7 more elements

A retractable magnetic sweeper, comprising:

a shell member defining a receiving space;
a retractable tubular member including a lower tubular section connected to said shell member, and an upper tubular section mounted slidably on said lower tubular section;
a moving member mounted on said upper tubular section of said retractable tubular member;
a connecting bar member mounted axially within said retractable tubular member, and including an operating end portion extending into said upper tubular section of said retractable tubular member and connected to said moving member, and a connecting end portion extending into said lower tubular section of said retractable tubular member;
and
a magnetic member mounted in said receiving space of said shell member, and connected to said connecting end portion of said connecting bar member;
wherein said moving member is operable to move said magnetic member downward to an operative state, and upward to a non-operative state, and
wherein said retractable tubular member further includes a positioning unit mounted between said lower and upper tubular sections so as to lock said lower tubular section against movement relative to said upper tubular section after retraction of said upper tubular section relative to said lower tubular section.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/754,353Filed 11 Jan 2004
Published: US 2005/0151611 A114 Jul 2005
Granted: 22 Aug 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A47L 13/41
Cleaning implements actuated by electrostatic attraction; Devices for cleaning same; Magnetic cleaning implements: magnetic cleaning implements
B03C 1/0332
Characterised by the magnetic circuit: using permanent magnets
B03C 1/28
Acting directly on the substance being separated: magnetic plugs and dipsticks
B03C 1/284
Magnetic plugs and dipsticks: with associated cleaning means, e.g. retractable non-magnetic sleeve