Source: https://patents.justia.com/patent/20180226820
Timestamp: 2019-06-26 02:07:39
Document Index: 320190645

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

US Patent Application for LITHIUM-BASED BATTERY PACK FOR A HAND HELD POWER TOOL Patent Application (Application #20180226820 issued August 9, 2018) - Justia Patents Search
Justia Patents US Patent Application for LITHIUM-BASED BATTERY PACK FOR A HAND HELD POWER TOOL Patent Application (Application #20180226820)
This application is a continuation of U.S. patent application Ser. No. 15/614,191, filed Jun. 5, 2017, now U.S. Pat. No. 9,941,718, which is a continuation of U.S. patent application Ser. No. 15/193,294, filed Jun. 27, 2016, now U.S. Pat. No. 9,673,648, which is a continuation of U.S. patent application Ser. No. 14/695,614, filed Apr. 24, 2015, now U.S. Pat. No. 9,379,569, which is a continuation of U.S. patent application Ser. No. 13/871,172, filed Apr. 26, 2013, now U.S. Pat. No. 9,018,903, which is a continuation of U.S. patent application Ser. No. 13/568,265, filed on Aug. 7, 2012, now U.S. Pat. No. 8,450,971, which is a continuation of U.S. patent application Ser. No. 13/109,116, filed on May 17, 2011, now U.S. Pat. No. 8,269,459, which is a continuation of U.S. patent application Ser. No. 12/331,088, filed on Dec. 9, 2008, now U.S. Pat. No. 7,944,173, which is a continuation of U.S. patent application Ser. No. 11/780,829, filed on Jul. 20, 2007, now U.S. Pat. No. 7,554,290, which is a continuation of U.S. patent application Ser. No. 10/721,800, filed on Nov. 24, 2003, now U.S. Pat. No. 7,253,585, the entire contents of all of which are hereby incorporated by reference. U.S. patent application Ser. No. 10/721,800 claims the benefit of U.S. Provisional Patent Application No. 60/428,356, filed on Nov. 22, 2002; U.S. Provisional Patent Application No. 60/428,358, filed on Nov. 22, 2002; U.S. Provisional Patent Application No. 60/428,450, filed on Nov. 22, 2002; U.S. Provisional Patent Application No. 60/428,452, filed on Nov. 22, 2002; U.S. Provisional Patent Application No. 60/440,692, filed on Jan. 17, 2003; U.S. Provisional Patent Application No. 60/440,693, filed on Jan. 17, 2003; U.S. Provisional Patent Application No. 60/523,712, filed on Nov. 19, 2003; and U.S. Provisional Patent Application No. 60/523,716, filed on Nov. 19, 2003, the entire contents of all of which are hereby incorporated by reference. This application also hereby incorporates by reference the entire contents of U.S. patent application Ser. No. 10/720,027, filed on Nov. 20, 2003, now U.S. Pat. No. 7,157,882, and U.S. patent application Ser. No. 10/719,680, filed on Nov. 20, 2003, now U.S. Pat. No. 7,176,654.
3. The battery pack of claim 1, wherein the cell length is between about two and about 2.7 times the cell diameter.
5. The battery pack of claim 1, wherein the cell length is between about 60 mm and about 70 mm.
6. The battery pack of claim 1, wherein the cell length is about 65 mm.
a battery pack for supplying power to a hand held power tool, the battery pack including a battery pack housing connectable to and supportable by the hand held power tool, and a plurality of battery cells supported within the battery pack housing, the plurality of battery cells connected in a combined series-parallel configuration, each of the plurality of battery cells having a lithium-based chemistry, each of the plurality of battery cells being cylindrical and having a cell diameter and a cell length, the cell length being at least about two times the cell diameter;
a circuit configured to control a discharge of the plurality of battery cells to produce a discharge current from the plurality of battery cells and to supply the discharge current to the hand held power tool, an average of the discharge current produced by the plurality of battery cells being greater than or equal to approximately 20 amps.
11. The combination of claim 10, wherein the cell length is between about two and about 2.7 times the cell diameter.
12. The combination of claim 10, wherein the battery pack has an ampere-hour capacity of at least 3.0 ampere-hours.
13. The combination of claim 10, wherein the cell length is between about 60 mm and about 70 mm.
14. The combination of claim 10, wherein the cell length is about 65 mm.
15. The combination of claim 10, wherein the circuit is configured to control a field-effect transistor (“FET”) to control the discharge of the plurality of battery cells.
16. The combination of claim 15, wherein the FET is within the battery pack housing.
17. The combination of claim 10, wherein the circuit includes a microprocessor.
18. The combination of claim 17, wherein the microprocessor is within the battery pack housing.
19. The combination of claim 11, further comprising a hand held power tool.
20. A method of operating a battery pack, the method comprising:
coupling a housing of the battery pack to a hand held power tool to support the battery pack on the hand held power tool, the battery pack including a plurality of battery cells supported within the housing, the plurality of battery cells being connected in a combined series-parallel configuration, each of the plurality of battery cells having a lithium-based chemistry, each of the plurality of battery cells being cylindrical and having a cell diameter and a cell length, the cell length being at least about two times the cell diameter, and first and second terminals for electrically connecting the battery pack to the hand held power tool; and
controlling, with a circuit, a discharge of the plurality of battery cells to produce a discharge current from the plurality of battery cells, an average of the discharge current produced by the plurality of battery cells being greater than or equal to approximately 20 amps.
Patent Grant number: 10218194
Application Number: 15/948,311
International Classification: H02J 7/00 (20060101); H01M 2/10 (20060101); H01M 10/44 (20060101); H02J 7/02 (20060101); H01M 10/46 (20060101);