US Patent No: 7,851,932
Number of patents in Portfolio can not be more than 2000
Backpack based system for human electricity generation and use when off the electric grid
Stats
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Dec 14, 2010
Issued date -
Mar 31, 2008
filing date -
12/059,440
serial no -
In Force
status
Importance
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Abstract
An electricity-generating backpack that is substantially lighter in weight, has the multiple springs replaced with one large spring whose spring constant can be adjusted in the field in seconds, and replaces a DC generator with a brushless AC generator that permits approximately 70% generator efficiency and the generation of up to 20 W of electrical power by converting mechanical energy to electrical power. A device is provided that always removes some electricity, but not too much, as necessary to extract large levels of the electricity while controlling damping by providing electrical damping circuits including a DC-DC converter designed to emulate a desired load at its input terminals. Additional electricity generating E-MOD devices may be used for generating additional power by hooking an E-Mod device to a generator and to the backpack belt at the wearer's hip and includes a wand that fits against the wearer's femur so as to move through a range of motion as the patient walks. The system also provides multiple possibilities of electricity generation when not walking including a light-weight bicycle ergometer which can be mounted to the backpack frame and generate very high power levels (100 W). The electricity generated and stored by the backpack may be used to charge batteries and to power a number of devices that may be carried by the backpack, such as a Sterling Cooler System that is powered by the backpack's stored power to provide cooling power for cooling items carried by the backpack.
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First Claim
Related Publications
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International Classification(s)
- A45F:TRAVELLING OR CAMP EQUIPMENT; SACKS OR PACKS CARRI....
- G01P:MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, D....
- B61C:LOCOMOTIVES; MOTOR RAILCARS
- A45C:PURSES; LUGGAGE; HAND CARRIED BAGS
- B60L:ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-P....
- F02B:INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENG....
- H02K:DYNAMO-ELECTRIC MACHINES
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,982,497 Backpack for harvesting electrical energy during walking and for minimizing shoulder strain | 26 | 2004 | |
| 7,391,123 Backpack for harvesting electrical energy during walking and for minimizing shoulder strain | 7 | 2005 | |
| 2008/0185,411 SUSPENDED LOAD ERGONOMIC BACKPACK | 2 | 2007 | |
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| 5,890,640 Internal frame pack with load-responsive spring rods | 26 | 1996 | |
| 5,904,282 External frame backpack harness | 12 | 1997 | |
| 6,802,442 Backpack having a shoulder strap mounted lift buckle | 8 | 2002 | |
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| 7,287,677 Backpack suspension system | 2 | 2004 | |
| 2008/0245,835 BACKPACK SUSPENSION SYSTEM | 1 | 2007 | |
| 2008/0203,128 Backpack suspension system with hub | 1 | 2007 | |
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| 5,696,413 Reciprocating electric generator | 47 | 1994 | |
| 6,020,653 Submerged reciprocating electric generator | 72 | 1997 | |
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| 6,360,534 Ocean wave energy extraction | 13 | 1999 | |
| 6,622,483 Ocean wave energy extraction system and components thereof | 11 | 2001 | |
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| 5,984,157 Shoulder support structure for a load carrying system | 15 | 1996 | |
| 5,902,073 Equipment support garment for divers | 16 | 1997 | |
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| 6,351,137 Impedance emulator | 5 | 2000 | |
| 6,646,463 Impedance emulator | 7 | 2002 | |
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| 6,545,384 Electroactive polymer devices | 135 | 2000 | |
| 6,876,135 Master/slave electroactive polymer systems | 56 | 2002 | |
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| 7,155,979 Self-calibrating oversampling electromechanical modulator and self-calibration method | 6 | 2002 | |
| 7,461,553 Self-calibrating oversampling electromechanical modulator and self-calibration method | 3 | 2006 | |
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| 2003/0062,723 Portable power generating unit | 11 | 2002 | |
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| 6,607,107 Backpack and improved load-carrying system therefor | 11 | 2001 | |
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| 2002/0171,213 Safety suitcase | 8 | 2002 | |
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| 6,637,631 Knapsack fitted with an angular damper between the back of the bag and the strap and/or belt assembly | 10 | 2001 | |
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| 5,955,904 Semiconductor integrated circuit with appropriate data output timing and reduced power consumption | 39 | 1997 | |
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| 6,179,186 Backpack | 14 | 1999 | |
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| 5,564,612 Modular backpack | 32 | 1995 | |
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| 7,046,528 Load-dependent variable frequency voltage regulator | 2 | 2002 | |
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| 6,801,027 Power conversion in variable load applications | 48 | 2002 | |
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| 7,345,407 Human powered piezoelectric power generating device | 7 | 2006 | |
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| 5,552,695 Synchronously rectified buck-flyback DC to DC power converter | 89 | 1994 | |
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| 6,276,584 Tramper's pack | 16 | 2000 | |
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| 7,230,838 Active damping control for a switch mode power supply | 4 | 2005 | |
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| 6,626,342 Backpack having a modular frame | 10 | 2000 | |
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| 6,600,346 Low voltage differential swing (LVDS) signal driver circuit with low PVT and load sensitivity | 88 | 2002 | |
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| 6,202,907 Backpack frame and cot | 4 | 1997 | |
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| 2006/0046,907 Power generation devices and methods | 30 | 2005 | |
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| 5,806,740 Modular load carrying equipment | 24 | 1996 | |
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| 2002/0190,699 Controllable damping member, method of controlling, and system using the damping member | 1 | 2002 | |
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| 5,136,173 Ocean wave energy conversion system | 24 | 1991 | |
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| 7,365,953 Apparatus and method for emulating a component in a circuit | 1 | 2006 | |
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| 5,682,353 Self adjusting sense amplifier clock delay circuit | 18 | 1996 | |
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| 7,131,534 Golf bag and strap system | 2 | 2002 | |
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| 5,762,243 Backpack assembly | 22 | 1997 | |
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| 6,423,412 Ferroelectric relaxer polymers | 9 | 1998 | |
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| 5,443,247 Tuneable rotating unbalanced mass device | 3 | 1994 | |
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| 7,703,562 Energy efficient robotic system | 7 | 2007 | |
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| 6,548,993 Power supply module having internal energy storage circuit for stable oscillation | 6 | 2000 | |
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| 4,194,656 Backpack and frame apparatus | 25 | 1978 | |
| 4,887,751 Traveler's organizer bag luggage | 73 | 1989 | |
| 5,628,443 Modular pack system and apparatus | 28 | 1993 | |
| 5,503,314 Helixical backpack carrier | 27 | 1994 | |
| 5,617,984 Backpack suspension system | 14 | 1995 | |
| 5,769,431 Backpack and load conveyance apparatus | 18 | 1995 | |
| 5,613,665 Vehicle suspension component | 5 | 1995 | |
| 5,818,132 Linear motion electric power generator | 58 | 1997 | |
| 6,651,853 Backpack frame, suspension, seat and cot | 9 | 2001 | |
| 6,619,523 Backpack including integral vibration damper | 12 | 2002 | |
| 7,212,932 Method for emulating visible electromagnetic spectrum emissions of member species of Arthropoda: Insecta: Coleoptera: Lampyridae | 3 | 2005 | |
| 7,361,999 Body-carrying human power generation system | 10 | 2005 | |
| 7,638,889 Bag/pack power generation device | 5 | 2008 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jun 14, 2014 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 14, 2018 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 14, 2022 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |