N/A
1. Field of the Invention
This invention relates generally to hand tools, and more particularly to indexing hammers and crowbars.
2. Description of the Related Art
A hammer is known in the art to have a handle rigidly attached to a fixed hammer head and claw that is somewhat orthogonal to said handle. The claw can be used as a nail extractor having a slot into which the head of a nail can be inserted, and when a torque is applied to the handle, the nail can be caused to be removed. The claw is often in the form of a slotted v-cut therein adapted to allow a nail to be removed from a structure (e.g., wall, ceiling, floor). However, such hammers have claws that are fixed with respect to the hammer head, thus, in some situations (e.g., tight corners), making it difficult to position the claw to extract nails.
Similarly, a crowbar has a handle or a metal bar and a curved claw that is somewhat orthogonal to the handle or metal bar. The claw can be used as a nail extractor having a slot into which the head of a nail can be inserted, and when torque is applied to the handle or metal bar, the nail can be caused to be removed. As with the hammer, the claw is often in the form of a slotted v-cut therein adapted to allow a nail or a board to removed from a structure (e.g., wall, ceiling, floor). Such crowbars have claws that are fixed with respect to the handle or metal bar, thus, in some situations (e.g., tight corners), making it difficult to position the claw to extract nails or to remove boards.
Accordingly, a hammer with an adjustable claw is needed that allows the claw to be adjusted with respect to the hammer head to make it easier to position the claw to extract nails. Similarly, an adjustable, crowbar with an adjustable claw is needed that allows the claw to be adjusted with respect to the handle or metal bar to make it easier to position the claw.
The present invention comprises a fixed hand tool such as a hammer head or a crow bar, and a claw being pivotally coupled to an first end of a handle thereof with an indexable, lockable pivoting mechanism that includes various splined pin assemblies and/or locking pin mechanisms. Although the term spline is used herein, such term is meant to include any type of regularly spaced ridges and troughs, such as teeth, anticlines, and/or notches, (whether having slopes, being acicular, agonic, beveled, elliptical or the like).
A first embodiment of the present invention comprises a hammer having a fixed striking surface such as a hammer head, as would be used as a striking surface on a first end of a handle and claw being pivotally coupled to the first end of handle thereof with an indexable, lockable pivoting mechanism including a splined pin assembly.
A second embodiment of the present invention comprises a hammer having a fixed striking surface such as a hammer head, as would be used as a striking surface on a first end of a handle and claw being pivotally coupled to the first end of handle thereof with an indexable, lockable pivoting mechanism that includes a locked pin assembly.
A third embodiment of the present invention comprises a hammer having a fixed striking surface such as a hammer head, as would be used as a striking surface on a first end of a handle and claw being pivotally coupled to the second end of handle thereof with an pivoting mechanism that includes the splined pin assembly as used in the first embodiment of the present invention.
A fourth embodiment of the present invention comprises a hammer having a fixed striking surface such as a hammer head, as would be used as a striking surface on a first end of a handle and claw being pivotally coupled to the first end of handle thereof with a pivoting mechanism that includes an extensible leverage member that extends from a bore in the tool head at the top of the first end of the handle. The extensible leverage member has a bore with teeth that are engaged by a locking mechanism at the tool head as so to lock the extensible leverage member in place.
A fifth embodiment of the present invention comprises a hammer having a fixed striking surface such as a hammer head, as would be used as a striking surface on a first end of a handle and a claw being pivotally coupled to the first end of the handle thereof with an indexable, lockable pivoting mechanism including a locking pin assembly.
A sixth embodiment of the present invention comprises a hammer having a fixed striking surface such as a hammer head, as would be used as a striking surface on a first end of a handle and a claw being pivotally coupled to the first end of the handle thereof with an indexable, lockable pivoting mechanism including a locking pin assembly.
A seventh embodiment of the present invention comprises a hammer having a fixed striking surface such as a hammer head, as would be used as a striking surface on a first end of a handle and a claw being pivotally coupled to the first end of the handle thereof with an indexable, lockable pivoting mechanism including a splined pin assembly and a locking pin mechanism.
An eighth embodiment of the present invention comprises a bar having a fixed prying surface such as a crow bar, as would be used as a prying surface on a second end of a handle and a claw being pivotally coupled to the first end of the handle thereof with an indexable, lockable pivoting mechanism that includes a splined pin assembly.
Still, other objects, features, and advantages of the present invention will be apparent from the following description of the preferred embodiments, given for the purpose of disclosure, and taken in conjunction with the accompanying drawings.
For a further understanding of the nature and objects of the present inventions, reference should be made to the following detailed disclosure, taken in conjunction with the accompanying drawings, in which like parts are given like reference numerals, and wherein:
The present invention comprises a fixed hand tool such as a hammer head or a crow bar, and a claw being pivotally coupled to an end of a handle thereof with an indexable, lockable pivoting mechanism that includes various splined pin assemblies and/or locking pin mechanisms. Although the term spline is used herein, such term is meant to include any type of regularly spaced ridges and troughs, such as teeth, anticlines, and/or notches, (whether having slopes, being acicular, agonic, beveled, elliptical or the like). In the following embodiments, the hand tool may be made out of any suitable material. Preferably, the tool is made from a stainless steel material including 17-4 stainless and heat treated 4140 stainless.
As seen in
As seen in
The pivoting mechanism 30 includes the splined orifice 40 and the partially splined orifices 45 and 60 and a partially splined pin assembly 35 comprising a partially splined pin 65 (as seen in
The partially splined pin 65 has a splined pin bore 70 therethrough and is threaded at both ends of the bore 70. As seen in
As seen in
The present invention further includes a tool handle or extension 20. In an alternative first embodiment of the present invention, the claw 25 can have a single prong with a single splined orifice therethrough, with the first end 15 of the handle 20 having a second and third prong with partially splined orifices adapted to receive the single prong (the second and third prongs being formed in the first end 15 of the handle 20 and extending laterally from the fixed hammer head 10), the first splined orifice of the first end 15 of the handle 20, with the partially, splined pin assembly 35 for insertion through said first, second and third orifices. Alterations can be made to the description hereinabove provided to adapt it to the alternative first embodiment. The present invention is intended to cover all such variations and configurations.
The splined pin assembly 35 of the first embodiment or the alternative first embodiment is disposed in the three splined orifices 40, 45, and 60 and is axially movable between an unlocked position and a locked position. The splined pin assembly 35 allows a user to move the splined pin 65 axially in the first 40, second 45 and third orifices 60 between the locked position and the unlocked position. The splines of the splined pin 65 are disposed in the first 40, and different portions of the second 45 and third orifices 60 in the locked position and the unlocked position.
As seen in
As seen in
As seen in
The locking pin 160 is caused to be forced upward into a tapered center prong bore 175 by a spring that is located below the locking pin 160 within the handle bore 155. The second end 170 of the locking pin 160 has a chamfer adopted to receive an end of the spring. The spring is normally in an extended position and is caused to be compressed by user force so as to cause the locking pin 160 to be released from tapered center prong bore 175. Then, the claw 25 can be rotated with respect to the handle 20. Once the user releases the side pressure and downward force on the release pin 185, the spring causes the locking pin 160 to return to an upward position. If the locking pin 160 is aligned with a tapered center prong bore 175, the claw 25 is locked into position. If not, then the first end 165 of the locking pin 160 rides along the smooth curved face of the center prong bore 175 until one of the tapered center prong bores 175 and the first end 165 of the locking pin 160 engage.
As seen in
The second end 200 of the handle 20 has a slidable grip 205 that allows the grip 205 to be slid up the handle 20. In a preferred embodiment, the grip 205 has a length about ½ the length of the handle 20. The pivoting mechanism 30 is within the grip 205 at the second end 200 of the third embodiment of the present invention. The first end 15 of the handle 20 has a fixed striking surface 5, such as a hammer head 10. The second end 205 of the handle 20 has a first splined orifice 210, a claw 25 having an upper prong 50 with a second, partially splined orifice 45 and a lower prong 55 with a third, partially splined orifice 60. The second end 205 of the handle 20 includes therethrough the first splined orifice 210 and is positioned between the upper 50 and lower prongs 55 of the claw 25 with the first splined orifice 210 coaxially aligned with the second 45 and third partially splined orifices 60 of the claw 25.
In an alternative first embodiment of the present invention, the claw 25 can have a single prong with a single splined orifice therethrough, with the second end 200 of the handle 20 having a second and third prong with partially splined orifices adapted to receive the single prong (the second and third prongs being formed in the second end of the handle) the first splined orifice of the claw 25 being coaxially aligned with the second and third partially splined orifices of the second end 205 of the handle 20, with the partially, splined pin assembly 35 for insertion through said first, second and third orifices. Alterations can be made to the description hereinabove provided to adapt it to the alternative third embodiment. The present invention is intended to cover all such variations and configurations.
The splined pin assembly 35 of the third embodiment or the alternative third embodiment is disposed in the three splined orifices 210, 45 and 60 and is axially movable between an unlocked position and a locked position. The splined pin assembly 35 allows a user to move the splined pin 65 axially in the first 210, second 45 and third orifices 60 between the locked position and the unlocked position. The splines of the splined pin 65 are disposed in the first 210, and different portions of the second 45 and third orifices 60 in the locked position and the unlocked position.
As seen in
As seen in
As seen in FIGS. 27 and 29-30, the pivoting mechanism 240 of the fifth embodiment of the present invention comprises a first end 15 of a handle 20 having a striking surface 5, such as a hammer head 10, and an upper 50 and lower prongs 55, each having a circular orifice 45 and 60, respectively, having a smooth interior circumference, a claw 25 with a v shaped claw portion 110 and a rounded center prong 120 having a substantially centered circular orifice 40 with a smooth interior circumference, the center prong 120 adapted to fit within and rotate with respect to the upper prong 50 and lower prong 55. A pin 125, being a substantially solid cylinder with a circumference slightly less than the circumference of the orifices 40, 45 and 60 through which it is inserted, is inserted axially through the orifices 40, 45 and 60 of the center 120, upper 50 and lower prongs 55, respectively. Each end 130 and 135 of the pin 125 includes a disk portion 140 and 145 that has a circumference greater than that of the orifices 40, 45 and 60 so as to secure the pin 125 axially within the orifices 40, 45 and 60. The pin 125 may also be held in place with a plurality of retaining rings.
As seen in
When a user applies a downward force to the splined knob 290 of the locking lever 260, the first end 280 of the locking lever 260 engages the locking pin bore 275 and causes the locking pin 255 to be forced upward and hence to be locked in the tapered center prong bore 175 in which it is located at that time. However, when a user applies an upward force to the splined knob 290 of the locking lever 260, the first end 280 of the locking lever cause the locking pin 255 to be forced downward and hence to be unlocked in the tapered center prong bore 175. Then, the claw 25 can be rotated with respect to handle 20.
The locking pin 255 is caused to be forced upward into a tapered center prong bore 175 by a spring that is located below the locking pin 255 within the handle bore 250. The second end 270 of the locking pin 255 has a chamfer adopted to receive an end of the spring. The spring is normally in an extended position and is caused to be compressed by user force so as to cause the locking pin 255 to be released from tapered center prong bore 175. Then, the claw 25 can be rotated with respect to the handle 20. Once the user releases the upward force on the splined knob 290 of the locking lever 260, the spring causes the locking pin 255 to return to an upward position. If the locking pin 255 is aligned with a tapered center prong bore 175, the claw 25 is locked into position. If not, then the first end 265 of the locking pin 255 rides along the smooth curved face of the center prong bore 175 until one of the tapered center prong bores 175 and the first end 265 of the locking pin 255 engage.
As seen in
As seen in FIGS. 42 and 43-45, the pivoting mechanism 350 of the sixth embodiment of the present invention comprises a first end 15 of a handle 20 having a striking surface 5, such as a hammer head 10, and an upper 50 and lower prongs 55, each having a circular orifice 45 and 60, respectively, having a smooth interior circumference, a claw 25 with a v shaped claw portion 110 and a rounded center prong 120 having a substantially centered circular orifice 40 with a smooth interior circumference, the center prong 120 adapted to fit within and rotate with respect to the upper 50 and lower prongs 55. A pin 125, being a substantially solid cylinder with a circumference slightly less than the circumference of the orifices 40, 45 and 60 through which it is inserted, is inserted axially through the orifices 40, 45 and 60 of the center 120, upper 50 and lower prongs 55, respectively. Each end 130 and 135 of the pin 125 includes a disk portion 140 and 145 that has a circumference greater than that of the orifices 40, 45 and 60 so as to secure the pin 125 axially within the orifices 40, 45 and 60. The pin 125 may also be held in place with a plurality of retaining rings.
As seen in FIGS. 42 and 48-55, a locking mechanism 355 serves to lock the rotating claw 25 with respect to the handle 20. The locking mechanism 355 is comprised of a handle bore 360 located longitudinally within a portion of the handle adapted to receive a locking pin 365 and a pair of locking buttons 370 and 375, the locking pin 365 having a first end 380 and a second end 385, the first end 280 of the locking pin 365 being tapered and adapted to be received in and mated in one of a series of similarly tapered center prong bores 175 located concentrically along a curved face of the center prong 120 aligned with the locking pin 365. Toward the second end 385 of the locking pin 365 is a locking pin bore 390 located perpendicular to the locking pin 365, the locking pin bore 390 adapted to receive therethrough a pin 395 having a first end 400 and a second end 405. A pin 395, being a substantially solid cylinder with a circumference slightly less than the circumference of the orifices 390, 410 and 415 through which it is inserted, is inserted axially through the orifices 390, 410 and 415 of the locking pin 365, upper 370 and lower locking buttons 375, respectively. Each end 400 and 405 of the pin 395 includes a disk portion 420 and 425 that has a circumference greater than that of the orifices 390, 410 and 415 so as to secure the pin 395 axially within the orifices 390, 410 and 415. The pin 395 may also be held in place with a plurality of retaining rings.
When a user applies an upward force to the upper locking button 370 and the lower locking button 375, the locking pin 365 is caused to be forced upward and hence to be locked in the tapered center prong bore 175 in which it is located at that time. However, when a user applies a downward force to the upper locking button 370 and lower locking button 375, the locking pin 365 to be forced downward and hence to be unlocked in the tapered center prong bore 175. Then, the claw 25 can be rotated with respect to handle 20.
The locking pin 365 is caused to be forced upward into a tapered center prong bore 175 by a spring that is located below the locking pin 365 within the handle bore 360. The second end 385 of the locking pin 365 has a chamfer adopted to receive an end of the spring. The spring is normally in an extended position and is caused to be compressed by user force so as to cause the locking pin 365 to be released from tapered center prong bore 175. Then, the claw 25 can be rotated with respect to the handle 20. Once the user releases the downward force on the upper locking button 370 and lower locking button 375, the spring causes the locking pin 365 to return to an upward position. If the locking pin 365 is aligned with a tapered center prong bore 175, the claw 25 is locked into position. If not, then the first end 380 of the locking pin 365 rides along the smooth curved face of the center prong bore 175 until one of the tapered center prong bores 175 and the first end 380 of the locking pin 365 engage.
As seen in
As seen in
As seen in
The locking pin 455 is caused to be forced downward into the splines 445, 480 and 485 located on the edge of circular orifices 440, 470 and 475 in the center 435, upper 460 and lower prongs 465, respectively, by springs that are located between the pin 450 and the locking pin 455. The single spline 510 of the pin 450 has a plurality of chamfers perpendicular to the pin 450 adapted to receive an end of a spring, and the side of the locking pin 455 has a plurality of chamfers perpendicular to the locking pin 455 adapted to receive the other end of the corresponding spring in the pin 450. The spring is normally in an extended position and is caused to be compressed by user force so as to cause the locking pin 455 to be released from the splines 445, 480 and 485 located in the center 435, upper 460 and lower prongs 465, respectively. Then, the claw 25 can be rotated with respect to the handle 20. Once the user releases upward force on the release pin 455, the springs cause the locking pin 455 to return to a downward position. If the locking pin 455 is aligned with the splines 445, 480 and 485 located in the center 435, upper 460 and lower prongs 465, respectively, the claw 25 is locked into position. If not, then the locking pin 455 rides along the smooth curved face of the center 435, upper 460 and lower prong 465 until one of the pairs of circular orifices 470 and 475 in the upper 460 and lower prongs 465, respectively, and the locking pin 455 engage.
As seen in
As seen in
As seen in
The locking mechanism 615 further comprises an upper 585 and lower prong 590, each having an upper 670 and a lower locking pin bore 675, a locking lever 635, having a center orifice 700, the locking lever 635 being adapted to fit within and rotate with respect to the upper 585 and lower prongs 590. A locking lever pin 680 being a substantially solid cylinder with a circumference slightly less than the circumference of the orifices 700, 670 and 675 through which it is inserted, is inserted axially through the orifices 700, 670 and 675 of the locking lever 635 and the upper 585 and lower prongs 590, respectively. Further, the locking lever pin 680 has a first end 690 and a second end 695, the first end of the locking lever pin 680 has a disk 685 and the second end has a retainer ring 705. The locking lever 635 is adapted to permit a user to apply downward force to an end of the locking lever 635 contacting the locking pins 625 and 630 thus causing the locking pins 625 and 630 be forced downward.
The locking pins 625 and 630 are caused to be forced upward into the locking lever 635 by springs that are located below the locking pins 625 and 630 within the handle bore 620. The second ends 645 and 655 and of the locking pins 625 and 630, respectively, have chamfers adopted to receive an end of the springs. The springs are normally in an extended position and is caused to be compressed by user force so as to cause splines on the locking lever 635 to be released from splines on the cylindrical center prong 605. Then, the claw 570 can be rotated with respect to the handle 555. Once the user releases the downward force on the locking lever 635, the springs cause the locking lever 635 to return to an upward position. If the splines on the locking lever 635 are aligned with splines on the center prong 605, the claw 25 is locked into position. If not, then the splines of the locking lever 635 ride along the splined surface of the center prong 605 until a plurality of splines on the center prong bore 605 and the splines of the locking lever 635 engage.
As seen in the preferred embodiments of
This application claims the benefit of U.S. Provisional Application No. 61/135,413, filed on Jul. 21, 2008. Both U.S. Provisional Application No. 61/135,413, filed on Jul. 17, 2008, and U.S. Provisional Application No. 61/072,618, filed on Apr. 1, 2008 are incorporated herein by reference.
Number | Name | Date | Kind |
---|---|---|---|
151315 | Rowe | May 1874 | A |
624643 | Gaylor | May 1899 | A |
662966 | Robertson | Dec 1900 | A |
879525 | Cook | Feb 1908 | A |
928375 | Fricke | Jul 1909 | A |
1077575 | Wutke | Nov 1913 | A |
1109032 | Berstead | Sep 1914 | A |
1217217 | Reagan, Jr. | Feb 1917 | A |
1286506 | Berry | Dec 1918 | A |
1292886 | Rolston | Jan 1919 | A |
1355455 | Doughty | Oct 1920 | A |
1431389 | Frisz | Oct 1922 | A |
1445263 | Asper | Feb 1923 | A |
1568442 | Carver | Jan 1926 | A |
1840685 | Witherup | Jan 1932 | A |
2082901 | Palmu | Jun 1937 | A |
2325227 | Chaddock | Jul 1943 | A |
2330092 | Vanasse | Sep 1943 | A |
2420132 | Gryiuck | May 1947 | A |
2603325 | Pickard | Jul 1952 | A |
2638677 | Sheriff | May 1953 | A |
2671367 | Modin | Mar 1954 | A |
2691316 | Brame | Oct 1954 | A |
2708855 | Fish | May 1955 | A |
2921773 | Hoelzer | Jan 1960 | A |
3002409 | Jones | Oct 1961 | A |
3039339 | Hanson | Jun 1962 | A |
3119591 | Malecki | Jan 1964 | A |
3175436 | Coleman | Mar 1965 | A |
3188895 | Jones | Jun 1965 | A |
3270597 | Neff et al. | Sep 1966 | A |
3314318 | Shoults | Apr 1967 | A |
3376768 | Fortunato | Apr 1968 | A |
3550486 | Edwards | Dec 1970 | A |
3733936 | Flynn | May 1973 | A |
3779107 | Avery | Dec 1973 | A |
3854832 | Cowper | Dec 1974 | A |
4027558 | Fish | Jun 1977 | A |
4145124 | Weisgerber | Mar 1979 | A |
4184783 | Hall | Jan 1980 | A |
4244237 | Sprunger | Jan 1981 | A |
4270417 | Tesoro | Jun 1981 | A |
4281601 | Overman | Aug 1981 | A |
4406186 | Gummow | Sep 1983 | A |
4479409 | Antonius | Oct 1984 | A |
4520697 | Moetteli | Jun 1985 | A |
4543007 | Quiogue | Sep 1985 | A |
4582445 | Warshawsky | Apr 1986 | A |
4596167 | White, Jr. | Jun 1986 | A |
4614452 | Wang | Sep 1986 | A |
4619540 | Day et al. | Oct 1986 | A |
4657428 | Wiley | Apr 1987 | A |
4711596 | Bruderer | Dec 1987 | A |
4747328 | Howard | May 1988 | A |
4774862 | Scull | Oct 1988 | A |
4794829 | Mesenhoeller | Jan 1989 | A |
4800785 | Christensen | Jan 1989 | A |
4805494 | Santoro | Feb 1989 | A |
4901608 | Shieh | Feb 1990 | A |
4921271 | Berry et al. | May 1990 | A |
4929113 | Sheu | May 1990 | A |
4982732 | Morris | Jan 1991 | A |
4991470 | Singleton | Feb 1991 | A |
4993862 | Pelta | Feb 1991 | A |
5039118 | Huang | Aug 1991 | A |
5056805 | Wang | Oct 1991 | A |
5062179 | Huang | Nov 1991 | A |
5123768 | Franklin | Jun 1992 | A |
5197817 | Wood et al. | Mar 1993 | A |
5280738 | Liou | Jan 1994 | A |
5326186 | Nyberg | Jul 1994 | A |
5386747 | Grover | Feb 1995 | A |
5419221 | Cole | May 1995 | A |
5471899 | Twomlow | Dec 1995 | A |
5503048 | Moon | Apr 1996 | A |
5522287 | Chiang | Jun 1996 | A |
5564852 | Maxwell et al. | Oct 1996 | A |
5581838 | Rocco | Dec 1996 | A |
5674024 | Daumal Castellon | Oct 1997 | A |
5694818 | Nickipuck | Dec 1997 | A |
5695172 | Hreha | Dec 1997 | A |
5775184 | Cole | Jul 1998 | A |
5820288 | Cole | Oct 1998 | A |
5860337 | Janssen | Jan 1999 | A |
5871204 | Spirer | Feb 1999 | A |
5879100 | Winkler | Mar 1999 | A |
5911800 | Roberts et al. | Jun 1999 | A |
5941141 | Whitley | Aug 1999 | A |
6000299 | Cole | Dec 1999 | A |
6032555 | Whitley | Mar 2000 | A |
6161982 | Cole | Dec 2000 | A |
6216565 | McCann | Apr 2001 | B1 |
6240809 | Sasarak | Jun 2001 | B1 |
6257553 | Khachatoorian | Jul 2001 | B1 |
6324947 | Jarvis | Dec 2001 | B2 |
6412374 | Hsieh | Jul 2002 | B1 |
6488266 | Macor | Dec 2002 | B2 |
6752380 | Taylor et al. | Jun 2004 | B1 |
6840141 | Cole | Jan 2005 | B2 |
6895839 | Hsien | May 2005 | B1 |
6948700 | Wood | Sep 2005 | B2 |
7025331 | Whelan | Apr 2006 | B2 |
7039993 | Smith et al. | May 2006 | B1 |
7082862 | Lee | Aug 2006 | B2 |
7156003 | Cole | Jan 2007 | B2 |
7168346 | Lin | Jan 2007 | B2 |
7171876 | Chen | Feb 2007 | B2 |
7237463 | Lee | Jul 2007 | B1 |
7278626 | Chang | Oct 2007 | B1 |
7591208 | Cole | Sep 2009 | B2 |
7628382 | Cole | Dec 2009 | B2 |
20040202506 | Lazic et al. | Oct 2004 | A1 |
20040226418 | Honniball | Nov 2004 | A1 |
20050097994 | Liao | May 2005 | A1 |
20060260445 | Cole | Nov 2006 | A1 |
20070169590 | Cole | Jul 2007 | A1 |
Number | Date | Country |
---|---|---|
WO-9534408 | Dec 1995 | WO |
WO-9848178 | Oct 1998 | WO |
WO-9916584 | Apr 1999 | WO |
Entry |
---|
U.S. Patent and Trademark office action cited in copending U.S. Appl. No. 11/356,601, May 29, 2008. |
U.S. Patent and Trademark office action cited in copending U.S. Appl. No. 11/356,601, Jan. 5, 2009. |
U.S. Patent and Trademark office action cited in copending U.S. Appl. No. 11/434,701, Jun. 1, 2007. |
U.S. Patent and Trademark office action cited in copending U.S. Appl. No. 11/356,601, Sep. 18, 2009. |
Number | Date | Country | |
---|---|---|---|
20100019214 A1 | Jan 2010 | US |
Number | Date | Country | |
---|---|---|---|
61135413 | Jul 2008 | US |