Patent US5207550A successfully refreshed from Google Patents.
US5207550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum handler
Assignee: Valley Craft
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Filing: 1992-10-07
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Granted: 1993-05-04
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Expires: 2012-10-07
Abstract
Abstract A drum handler is provided for manipulating drums of known dimensions. The handler includes a frame and carriage attached to the frame to move along a vertical line of travel. A lift drive is provided for moving the carriage along the line of travel. A drum engagement is carried on the carriage for movement therewith. The drum engagement member includes mechanism for gripping a drum. A rotary drive is provided for rotating the gripping member about a generally horizontal axis.
Inventors
- 👤 Marcus S. Lehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:41
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/125
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
256 words
A drum handler for manipulating drums, said handler comprising: a manually engagable frame member (18) having roller means for said frame to be manually moved about a surface and having manually engagable handles for an operator to engage and urge said member about said surface; a carriage (48); attachment means for attaching said carriage to said frame for said carriage to move along a vertical line of travel; lift drive means connected to said frame for moving said carriage along said line of travel; a source (44) of pressurized hydraulic fluid including a first hydraulic motor, said source (44) connected to said frame member (18), for movement therewith, electrical power means carried on said frame for powering said first hydraulic motor; said electrical power means including electrical power storage means and means for releasably connecting said storage means to an external power source to recharge said storage means; a modular drum engagement member (54) releasably connected to said carriage (48), said drum engagement member including gripping means for gripping a drum; said drum engagement member (54) including hydraulic actuator means carried on said drum engagement member (54) to rotate said gripping means about a generally horizontal axis, said rotary actuator means including a second hydraulic motor (60) connected to said drum engagement member (54) and removable from said carriage (48) with said drum engagement member; hydraulic fluid coupling means (66) for releasably connecting said second hydraulic motor (60) to said source (44) of pressurized hydraulic fluid throughout movement of said carriage through said line of travel.
Claim 2
Dependent Claim
256 words
A drum handler for manipulating drums, said handler comprising: a manually engagable frame member (18) having roller means for said frame to be manually moved about a surface and having manually engagable handles for an operator to engage and urge said member about said surface; a carriage (48); attachment means for attaching said carriage to said frame for said carriage to move along a vertical line of travel; lift drive means connected to said frame for moving said carriage along said line of travel; a source (44) of pressurized hydraulic fluid including a first hydraulic motor, said source (44) connected to said frame member (18), for movement therewith, electrical power means carried on said frame for powering said first hydraulic motor; said electrical power means including electrical power storage means and means for releasably connecting said storage means to an external power source to recharge said storage means; a modular drum engagement member (54) releasably connected to said carriage (48), said drum engagement member including gripping means for gripping a drum; said drum engagement member (54) including hydraulic actuator means carried on said drum engagement member (54) to rotate said gripping means about a generally horizontal axis, said rotary actuator means including a second hydraulic motor (60) connected to said drum engagement member (54) and removable from said carriage (48) with said drum engagement member; hydraulic fluid coupling means (66) for releasably connecting said second hydraulic motor (60) to said source (44) of pressurized hydraulic fluid throughout movement of said carriage through said line of travel.
Claim 3
Dependent Claim
20 words
A drum handler according to claim 1 wherein said drum rotary means rotates said gripping means 360° about said axis.
Claim 4
Dependent Claim
15 words
A drum handler according to claim 1 wherein said coupling means includes flexible hydraulic conduits.
Claim 5
Dependent Claim
40 words
A drum handler according to claim 1 wherein said frame member includes a platform with means for traversing a work floor and a mast extending vertically from said platform, said carriage secured to said mast for movement on said mast.
Claim 6
Dependent Claim
52 words
A drum handler according to claim 1 wherein said mast is a generally open channel having a sprocket disposed within said channel and a chain entrained on said sprocket with a first end connected to said carriage and a second end operably connected to said first hydraulic motor carried on said frame.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |