U.S. patent number 3,828,201 [Application Number 05/363,094] was granted by the patent office on 1974-08-06 for portable power package.
Invention is credited to Harry E. Allen, Sr..
United States Patent |
3,828,201 |
Allen, Sr. |
August 6, 1974 |
PORTABLE POWER PACKAGE
Abstract
A portable power supply which may be strapped to the body or
carried by hand, including a carrying case adapted to receive
batteries and appropriate electrical connections, the case further
including a switch which aids in converting from 6 to 12 volt
power. The package output may be typically adapted to power a head
lamp, which lamp or other output is typically connected to the
carrying case by a cord of sufficient length to allow freedom of
movement of the output with respect to the carrying case.
Inventors: |
Allen, Sr.; Harry E.
(Shreveport, LA) |
Family
ID: |
23428774 |
Appl.
No.: |
05/363,094 |
Filed: |
May 23, 1973 |
Current U.S.
Class: |
307/150; 362/105;
320/117 |
Current CPC
Class: |
F21L
2/00 (20130101); F21L 4/06 (20130101); F21V
21/084 (20130101) |
Current International
Class: |
H02J
7/00 (20060101); H02j 007/00 () |
Field of
Search: |
;240/6.4W,59 ;340/321
;320/16,15 ;307/150,149 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hohauser; Herman
Claims
I claim:
1. A portable power package comprising:
a. A carrying case adapted to receive a first battery, a second
battery, a first, second, and third contact point for selectively
receiving the terminals of said first battery, and a fourth and
fifth contact point for receiving the terminals of said second
battery, said first and said second contact points each being
adapted for electrical contact with an output means, said second
and said third contact points being selectively interconnected,
said third and said fourth contact points being interconnected; and
said first and said fifth contact points being interconnected;
b. A switch located between said second and said third contact
points, said switch being placed in the open position;
c. Battery supports mounted in said carrying case and adapted to
receive said first and said second battery;
d. The positive terminal of said first battery placed in contact
with said first contact point, and the negative terminal in contact
with said second contact point; and
e. The positive and negative terminals of said second battery
placed in contact with said battery supports adjacent said fourth
contact point and said fifth contact point.
2. The package of claim 1 wherein:
a. Said switch is closed; and
b. The positive terminal of said second battery is placed in
contact with said fifth contact point, and the negative terminal is
placed in contact with said fourth contact point.
3. The package of claim 2 further including a battery divider
positioned between said first battery and said second battery to
provide firm electrical contact between the terminals of said first
battery and said second battery and said contact points.
4. The package of claim 2 wherein:
a. Said switch is opened; and
b. The positive terminal of said first battery is placed in contact
with said second contact point, and the negative terminal is placed
in contact with said third contact point.
5. The package of claim 1 further including a battery divider
positioned between said first battery and said second battery to
provide firm contact between the terminals of said first battery
and said contact points.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a new and improved portable power supply
package for supplying power to such outputs as portable head lamps,
adapted for use in the field and remotely located from permanent
sources of power. The power package can be strapped to the body or
carried by hand, and if a head lamp is utilized as the power
output, the lamp may, for example, be mounted on the head by means
of a suitable hat arrangement, to provide sufficient light in a
selected direction without the necessity of using the hands to
direct the light. The power package is capable of providing both 6
and 12 volt energy by adjustment of the battery arrangement in the
carrying case. The carrying case may be adapted for belt mounting,
back mounting, mounting by shoulder straps, or alternative methods
of mounting on the body to leave the hands free while using the
package as a source of power. The package may be adapted for use by
firemen, police, hunters, soldiers in combat, and has many other
uses as a source of light; the invention may also be utilized to
power battery-operated tools and equipment at points remotely
located from permanent sources of power.
2. Description of the Prior Art
Heretofore, various types of apparatus have been developed to allow
use of a portable power unit while in the field and away from
permanent power sources. Most of these devices have embodied the
use of a single, 6 volt dry cell battery, to which is attached a
head lamp or other power output utility item, which lamp is
generally mounted on the head by a flexible band in order to leave
the hands free. These devices are subject to considerable
inconvenience in that there has heretofore been no satisfactory
carrying case developed to accommodate the battery while the user
has his hands otherwise occupied. For example, the conventional dry
cell battery is frequently forced into a pocket while working, and
may easily fall out, jerking the head lamp off the user's head or
otherwise constituting an inconvenience to the working
operation.
Still another disadvantage frequently found in conventional
portable power devices is a lack of capability to vary the power
output when such variation is needed. For example, in the case of
head lamps, the intensity of the lamp beam cannot be varied from 6
volts to 12 volts as is deemed necessary. A still further
inconvenience frequently found in conventional packages is a poorly
designed carrying case. Furthermore, in the case of head lamps, the
most generally used consists of a flexible band having a head lamp
mounting thereon with a direct connection from lamp to battery.
Such a band frequently slips loose from a tight mount on the head
and causes the light to drop to an undesirable angle from the head,
thereby necessitating frequent readjustment.
Accordingly, an object of the instant invention is to provide a
portable power package so constructed and designed as to be capable
of providing a 12 volt or a 6 volt output by manipulation of at
least one of the batteries in the case.
Still another object of the invention is to provide a carrying case
for accommodating a battery or batteries, which case is capable of
being placed on the belt, hung from the shoulder, or otherwise
strapped to the body in a convenient manner, leaving the hands
free.
Yet another object of the invention is to provide a portable head
lamp with accompanying carrying case which is simple and easy to
use, and which lamp may be placed on the head without misalignment
and maladjustment due to the wearer moving his head up and down and
from side to side while the lamp is in use.
A still further object of the invention is to provide a portable
power system in which the output power intensity may be varied from
12 volts to 6 volts as desired, by manipulation of at least one of
the batteries in the pack.
SUMMARY OF THE INVENTION
These and other objects of the invention are provided in a portable
power package for use in areas remotely located from permanent
sources of power, which includes the following elements:
1. A carrying case constructed of leather or other suitable
material designed for accommodating at least one battery to supply
power to a selected output;
2. Means for attaching the carrying case to the body leaving the
hands free;
3. An output means in electrical attachment to the power supply by
a cord which is sufficiently long to allow freedom of movement of
the output with respect to the carrying case.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be better understood in view of the following
description presented with reference to the accompanying drawings
which illustrates a head lamp as the typical output utility of the
invention.
FIG. 1 of the drawings is a perspective view of the portable power
package of this invention, including carrying case and illustrative
head lamp output;
FIG. 2 is a top-sectional view along lines 2--2 in FIG. 1,
illustrating the electrical contact points, battery supports, and
connections in the carrying case for operation of the head lamp
output;
FIG. 3 is a side-sectional view along lines 3--3 of FIG. 2, further
illustrating the contact points, electrical connections and typical
battery positions in the carrying case;
FIG. 4 is an electrical schematic of the portable power package
system;
FIG. 5 is a perspective view of the back plate of the carrying case
illustrating a preferred method of attaching the carrying case to
the body;
FIG. 6 is a perspective view of the battery divider feature of the
invention, which divider is used to maintain good contact between
the battery and contact points in the invention; and
FIG. 7 is a side elevation of a conventional, 6 volt, dry cell
battery of the design preferred for use in the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to FIG. 1 of the drawings, the portable power package
of this invention, generally illustrated by reference numeral 1, is
disclosed, with carrying case 2 illustrated for accommodation of
two-6 volt dry cell batteries 12, and battery divider 22
(illustrated in FIG. 6). Attached to carrying case 2 is back plate
3, equipped with belt apertures 4, electrical contact plate 6,
electrical contact screws 7 for mating with apertures (illustrated
in FIG. 5) in electrical contact plate 6 to provide electrical
contact connection points, and connectors 9a and 9b attached to
electrical contact plate 6 by means of electrical contact screws 7.
Back plate 3 is preferably braded onto carrying case 2, but may be
otherwise connected as is convenient. Carry case 2 is additionally
equipped with shoulder strap apertures 5, and top strap 10 carrying
snaps 11, which strap and snaps are positioned to keep batteries 12
from falling out of carrying case 2 if the case were turned upside
down or otherwise sharply jolted. In electrical connection with
electrical contact screws 7, and electrical contact plate 6, is one
end of output head lamp cord 8, the other end of this cord being
attached to head lamp 13 or other electrical output, via switch 14
(optional). Head lamp 13 is equipped with bulb 15, which may be
adapted for either 12 or 6 volt output, and may be in attachment to
head harness 16 for convenient mounting on the head of a user. Head
lamp cord 8 is, of course, sufficiently long to permit unrestricted
movement of the head and head lamp or other output means with
respect to carrying case 2.
FIG. 2 illustrates the bottom section of carrying case 2, more
particularly depicting the electrical connections and contact
system thereto. Connectors 9A and 9B join contacts 23A and 23B,
respectively, mounted on the bottom portion of carrying case 2, and
contacts 23, 24, and 24A are additionally provided to function as
hereinafter discussed. Likewise, switch 9C joins contacts 23A and
24, connector 9D links contact 24 and contact 24A, and connector 9E
joins contacts 23 and 23B. Battery supports 21 are provided on the
bottom of carrying case 2 to support batteries 12 firmly in
position to provide positive electrical contact between negative
battery terminal 19, and its respective contact, and positive
terminal 20, and its respective contact when the batteries are
placed in functional position.
FIG. 3 further illustrates a typical position of batteries 12 with
respect to battery supports 21, the respective connectors, and
contacts. FIG. 3 also particularly illustrates the battery terminal
-- contact positions.
As illustrated in FIGS. 2 and 3, either 6 or 12 volt power can be
supplied to output bulb 15 of head lamp 13, or other power output,
depending upon the configuration and positioning of batteries 12 in
carrying case 2. For example, when switch 9C is open and output
cord 8 is attached to connectors 9A and 9B, (and ultimately to
contacts 23A and 23B, respectively), and when positive battery
terminal 20 of battery 12 is placed on contact 23B, and negative
battery terminal 19 on contact 23A, 6 volts are supplied to the
output (in the illustrated case to bulb 15 in head lamp 13).
Subsequent activation of head lamp switch 14 then provides the
desired illumination.
When a double amperage, parallel electrical connection to provide
longer battery life is desired in the system, the battery
connection discussed above is effected, and a second battery is
placed in case 2 with positive terminal 20 touching contact 23, and
negative terminal 19 touching contact 24A. Switch 9C is then
closed, and a double-amperage, parallel power output is
effected.
Alternatively, when a 12 volt power supply is desired, switch 9C is
opened and the following battery and connector configuration is
utilized: Head lamp cord 8 is positioned on connectors 9A and 9B,
as above, which provides electrical connection to contacts 23A and
23B, respectively. The first battery is then placed with positive
battery terminal 20 on contact 23A, and negative battery terminal
19 on contact 24; the other battery is then positioned as above
described, with positive battery terminal 20 on contact 23, and
negative battery terminal 19 on contact 24A. This arrangement
provides a 12 volt power supply to the output, in the illustrated
case, to bulb 15, via head lamp 13 upon activation of head lamp
switch 14.
Referring now to FIG. 4 of the drawing, an electrical schematic
illustrating bulb 15, head lamp switch 14, electrical contact plate
6, electric connector screws 7, connectors 9A, and 9B, contacts 23,
23A, 23B, 24 and 24A, and batteries 12, is as illustrated. The
function of this circuit is to provide a 6 volt, single amperage
power output as previously discussed, depending upon battery
location and positioning.
FIG. 5 more particularly illustrates back plate 3, showing the
position of electrical connector plate 6, threaded apertures 7A
(designed to receive electrical contact screws 7), brad apertures
17, designed to receive brads 18 in fastening the back plate to the
carrying case, and belt apertures 4, for mounting the carrying case
on the belt of a user.
FIG. 6 illustrates battery divider 22, equipped with attached cord
22A, for removing the battery divider from its position between
batteries 12 when it is desired to remove the batteries from the
portable power package. Battery divider 22 serves to hold batteries
12 tightly into position in the carrying case to keep battery
terminals 19 and 20 on the contacts as the package is used, thereby
insuring a continuous power supply to the output. The battery
divider is removed from its position between the batteries by
pulling cord 22A upward when it is desired to remove the batteries
from carrying case 2.
While the power package output of this invention has been
illustrated as applied to a light, and particularly, a head light
or lamp, it will be appreciated that the invention may be similarly
used to supply power to battery powered tools, such as direct
current hedge clippers, cattle shockers, dental equipment, radios,
and explosive equipment. Use of rectifiers for conversion of the
direct current into alternating current can be utilized where
desired, and several power packages can be utilized in series or
parallel connection to provide the desired current and voltage
necessary for a designated task.
It will be appreciated that use of switch 9C illustrated in FIG. 2
of the drawing, is not necessary in changing from 6 to 12 volt
operation, although it serves as a safety device to prevent bulb
burnout. For example, if the power package is adjusted for 6 volt
operation and it is desired to convert from 6 to 12 volt use,
switch 9C may be first checked to be sure it is closed, the
batteries arranged in the appropriate positions as heretofore
discussed for 12 volt operation, and the 6 volt bulb removed and a
12 volt bulb inserted. Switch 9C may then be opened to provide 12
volt power to the output without bulb damage, while the process of
opening switch 9C prior to changing bulbs would have resulted in
burning out the 6 volt bulb.
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