US4120411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable battery cart
Assignee: Individual
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Filing: 1977-09-15
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Granted: 1978-10-17
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Expires: 1997-09-15
Abstract
Abstract A portable battery cart is disclosed for transporting electrical batteries including a wheeled base frame and an elevator platform carried by the base frame. A jack lift is provided for moving the elevator platform vertically relative to the base frame. A movable frame is carried by the elevator platform and a rotatable drive assembly is provided for moving the movable frame means in a generally horizontal direction relative to the elevator platform. The elevator platform includes a plurality of rollers and the movable frame includes a latch member for attachment to the battery so that the battery moves with the frame means over the rollers for loading and unloading from a roller platform of an associated storage rack.
Inventors
- 👤 Bobby L. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:14
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
183 words
A portable battery cart for transporting electrical batteries comprising: a wheeled base frame including a pair of laterally spaced vertical members adjacent one end thereof; an elevator platform carried by said vertical members of said base frame in a cantilevered manner; lift means for moving said elevator platform vertically relative to said base frame; movable frame means carried by said elevator platform including a pair of laterally spaced vertical legs with a cross member extending therebetween; latch means carried by said movable frame means being vertically movable relative thereto releaseably connecting said frame means to said battery; hook means carried by said elevator platform for connecting said cart to an associated storage platform whereon said batteries are loaded and unloaded; and drive means for moving said movable frame means horizontally relative to said elevator platform including a chain belt having opposing ends affixed adjacent the ends of said elevator platform, a drive sprocket carried by said movable frame means in engagement with said chain belt, and an idler sprocket carried on each side of said drive sprocket in engagement with said chain belt.
Claim 2
Dependent Claim
183 words
A portable battery cart for transporting electrical batteries comprising: a wheeled base frame including a pair of laterally spaced vertical members adjacent one end thereof; an elevator platform carried by said vertical members of said base frame in a cantilevered manner; lift means for moving said elevator platform vertically relative to said base frame; movable frame means carried by said elevator platform including a pair of laterally spaced vertical legs with a cross member extending therebetween; latch means carried by said movable frame means being vertically movable relative thereto releaseably connecting said frame means to said battery; hook means carried by said elevator platform for connecting said cart to an associated storage platform whereon said batteries are loaded and unloaded; and drive means for moving said movable frame means horizontally relative to said elevator platform including a chain belt having opposing ends affixed adjacent the ends of said elevator platform, a drive sprocket carried by said movable frame means in engagement with said chain belt, and an idler sprocket carried on each side of said drive sprocket in engagement with said chain belt.
Claim 3
Dependent Claim
46 words
The structure set forth in claim 1 wherein said movable frame means includes a pair of spaced upstanding frame legs, each of said frame legs having a roller assembly carried adjacent a lower end thereof by which said frame means moves relative to said elevator platform.
Claim 4
Dependent Claim
39 words
The structure set forth in claim 2 wherein each of said roller assemblies includes vertically spaced rollers between which a horizontal flange of said elevator platform is sandwiched to provide a guide surface over which said roller assembly rolls.
Claim 5
Dependent Claim
144 words
An improved portable battery cart for transporting electrical batteries which are loaded and unloaded from an associated storage rack having a roller platform, said cart being of the type having a wheeled base frame, an elevator platform carried by said base frame member having a plurality of rollers over which said battery is rolled and lift means for raising said platform, wherein the improvement comprises: a movable frame means carried by said elevator platform including a pair of laterally spaced upstanding leg members having a cross member carried therebetween; a latch member slideably carried by said cross member; said latch member being vertically movable relative to said cross member and movable frame means for engaging in latching relation with a complimentary portion of said battery; and drive means for moving said movable frame means in a generally horizontal direction relative to said elevator platform.
Claim 6
Dependent Claim
144 words
An improved portable battery cart for transporting electrical batteries which are loaded and unloaded from an associated storage rack having a roller platform, said cart being of the type having a wheeled base frame, an elevator platform carried by said base frame member having a plurality of rollers over which said battery is rolled and lift means for raising said platform, wherein the improvement comprises: a movable frame means carried by said elevator platform including a pair of laterally spaced upstanding leg members having a cross member carried therebetween; a latch member slideably carried by said cross member; said latch member being vertically movable relative to said cross member and movable frame means for engaging in latching relation with a complimentary portion of said battery; and drive means for moving said movable frame means in a generally horizontal direction relative to said elevator platform.
Claim 7
Dependent Claim
31 words
The structure set forth in claim 4 including hook means carried by said elevator platform for uniting said cart and storage rack while a battery is being loaded and unloaded therebetween.
Claim 8
Dependent Claim
32 words
The structure set forth in claim 4 wherein said drive means includes a rotatable drive member and an incremental track means along which said drive member travels in defined increments of movement.
Claim 9
Dependent Claim
41 words
The structure set forth in claim 1 wherein vertical legs of said movable frame means include generally C-shaped channel members, said chain belt of said drive means being housed in said channel and said drive sprocket being carried within said channel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-16 | 1982-04-17 | 1982-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-16 | 1986-04-17 | 1986-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-16 | 1990-04-17 | 1990-10-17 | $7700.00 | Window Closed / Lapsed |