Patent US3100381A successfully refreshed from Google Patents.
Patent US4161682A successfully refreshed from Google Patents.
US4161682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable battery charger
Assignee: GEM-LEO INDUSTRIES Inc
•
Filing: 1977-04-29
•
Granted: 1979-07-17
•
Expires: 1997-04-29
Abstract
Abstract A portable battery charger having a housing surrounding an L-shaped frame on wheels, the bottom portion of the frame supporting a battery. Within the frame is a battery charger connected in charging parallel relationship to the battery. Jumper cables are connected through the housing to the battery and intermediate portions of the jumper cables and electrical supply cable within the housing are yieldably retracted by disc-shaped weights into parallel vertically disposed compartments. An electrical tilt alarm is provided to prevent spillage of electrolyte.
Inventors
- 👤 William B. Corvette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/70
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
177 words
A portable battery charger comprising: (a) a housing having a plurality of parallel partitions defining parallel compartments, said housing being provided with a pair of spaced openings aligned respectively with said two of said compartments therein: (b) a battery disposed within a remaining compartment; (c) a battery charger disposed within remaining compartment and electrically connected to said battery; (d) battery charging cables having proximal ends directly electrically connected to said battery and said battery charger, intermediate portions of said cables being respectively received as U shaped loops in respective other of said compartments; the distal ends of said cables being slideably received in and extending outwardly respectively through said opening in said housing; (e) battery terminal clamps electrically connected to the ends of said cables, and being larger than said holes for arresting inwardly movement of said cables through said holes externally of said housing; and (f) means for yieldably urging said intermediate portions of said cables into said compartments sufficiently to yieldably hold said terminal clamps adjacent to their respective holes and in spaced apart condition.
Claim 2
Dependent Claim
177 words
A portable battery charger comprising: (a) a housing having a plurality of parallel partitions defining parallel compartments, said housing being provided with a pair of spaced openings aligned respectively with said two of said compartments therein: (b) a battery disposed within a remaining compartment; (c) a battery charger disposed within remaining compartment and electrically connected to said battery; (d) battery charging cables having proximal ends directly electrically connected to said battery and said battery charger, intermediate portions of said cables being respectively received as U shaped loops in respective other of said compartments; the distal ends of said cables being slideably received in and extending outwardly respectively through said opening in said housing; (e) battery terminal clamps electrically connected to the ends of said cables, and being larger than said holes for arresting inwardly movement of said cables through said holes externally of said housing; and (f) means for yieldably urging said intermediate portions of said cables into said compartments sufficiently to yieldably hold said terminal clamps adjacent to their respective holes and in spaced apart condition.
Claim 3
Dependent Claim
58 words
The portable battery charger defined in claim 1 wherein said intermediate portions of said cables extending into said compartments form bights at the lower end portions thereof, and wherein said means for yieldably urging said intermediate portions of said cables into said compartments include weights which are received by the bights of the intermediate portions of said cables.
Claim 4
Dependent Claim
39 words
The portable battery charger defined in claim 2 wherein said weights are disc shaped members which are carried by said cables, the compartments of said housing having parallel panels which confine said wieght above the bights of said cables.
Claim 5
Dependent Claim
37 words
The portable battery charger defined in claim 1 wherein said housing includes a frame and wherein said battery is carried by the bottom portion of said frame and wherein said battery charger is disposed above said battery.
Claim 6
Dependent Claim
39 words
The portable charger defined in claim 1 including wheels mounted on said housing at the lower end portion thereof and a handle on said frame by means of which said portable charger may be moved from place to place.
Claim 7
Dependent Claim
127 words
A portable battery charger comprising: (a) a housing having a plurality of compartments therein; (b) a battery disposed within said housing; (c) a battery charger disposed within said housing and electrically connected to said battery; (d) battery charging cables having proximal ends electrically connected to said battery and said battery charger, intermediate portions of said cables being respectively received in said compartments; the distal ends of said cables extending outwardly of said housing; (e) battery terminal clamps electrically connected to the ends of said cables, externally of said housing; (f) means for yieldably urging said intermediate portions of said cables into said compartments; and (g) an electrical actuated audible alarm connected electrically to said battery and switch means for actuating said alarm when said housing is tilted.
Claim 8
Dependent Claim
127 words
A portable battery charger comprising: (a) a housing having a plurality of compartments therein; (b) a battery disposed within said housing; (c) a battery charger disposed within said housing and electrically connected to said battery; (d) battery charging cables having proximal ends electrically connected to said battery and said battery charger, intermediate portions of said cables being respectively received in said compartments; the distal ends of said cables extending outwardly of said housing; (e) battery terminal clamps electrically connected to the ends of said cables, externally of said housing; (f) means for yieldably urging said intermediate portions of said cables into said compartments; and (g) an electrical actuated audible alarm connected electrically to said battery and switch means for actuating said alarm when said housing is tilted.
Claim 9
Dependent Claim
15 words
The portable battery charged defined in claim 6 wherein said switch is a mercury switch.
Claim 10
Dependent Claim
63 words
The portable battery charger defined in claim 1 wherein said housing includes a frame and a cover removably secured to said frame, and including a pair of ammeters carried by said housing, one of said ammeters detecting the amount of current supplied by said battery charger to said battery and the other ammeter detecting the amount of current supplied by said battery cables.
Claim 11
Dependent Claim
40 words
The portable battery charger defined in claim 1 including cable means extending through said housing and connected to said battery charger, said cable means also including a plug for connection of the battery charger to a source of a.c. current.
Claim 12
Dependent Claim
49 words
The portable battery charger defined in claim 9 wherein said cable means is slideably received through said housing and wherein an intermediate portion of said cable means is received in a compartment and including a weight carried by said cable means for yieldably returning said cable to said compartment.
Claim 13
Dependent Claim
16 words
The portable battery charger defined in claim 1 wherein said compartments are parallel to each other.
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) | 1982-07-16 | 1983-01-15 | 1983-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-16 | 1987-01-15 | 1987-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-16 | 1991-01-15 | 1991-07-17 | $7700.00 | Window Closed / Lapsed |