US Patent No: 7,278,561

Number of patents in Portfolio can not be more than 2000

Oil free head valve for pneumatic nailers and staplers

ALSO PUBLISHED AS: 20050189392

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present invention provides a head valve assembly for a pneumatic fastener including a piston assembly reciprocated within a cylinder assembly for driving a fastener and a housing having an end cap for at least partially enclosing the head valve assembly. The head valve assembly includes a valve piston for causing supply pressure to be ported to the piston assembly for moving the piston assembly within the cylinder assembly from a non-actuated position to an actuated position for driving the fastener. Further, an inner cap is disposed within the end cap around the valve piston. The inner cap includes an inlet port for porting pressure to the valve piston. In addition, a main seal is coupled to the valve piston for sealing the cylinder assembly from supply pressure while pressure is ported to the valve piston by the inner cap for holding the piston assembly in the non-actuated position. The main seal seals pressure ported to the valve piston by the inner cap from supply pressure ported to the piston assembly.

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First Claim

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all claims..

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BLACK & DECKER INC.NEWARK, DE3133

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goodwin, Daniel U Lexington, TN 8 19
Rose, Barbara A Jackson, TN 13 39
Schnell, John W Anderson, SC 68 618
Terrell, Timothy E Jackson, TN 12 36
Wall, Daniel Paxton Humboldt, TN 43 124

Cited Art Landscape

Patent Info (Count) # Cites Year
 
STANLEY FASTENING SYSTEMS, L.P. (13)
D353664 Portable pneumatic nailer 22 1993
* 5,476,205 Make and break head valve assembly 21 1994
5,829,660 Automatic-type fastener driving device 21 1995
D383657 Fastener driving device housing 23 1996
5,850,961 Quick exhaust remote trigger valve for fastener driving tool 22 1997
6,039,231 Adjustable energy control valve for a fastener driving device 26 1997
6,079,605 Quick exhaust remote trigger valve for fastener driving tool 12 1998
D433908 Portable pneumatic fastener driving device housing 10 1999
6,186,386 Fastener driving device with enhanced depth adjusting assembly 59 2000
6,189,759 Fastener driving device with enhanced magazine latch assembly 34 2000
6,371,348 Fastener driving device with enhanced sequential actuation 45 2000
6,783,044 Depth of drive adjustment for a fastener driving tool with removable contact member and method of exchanging contact members 20 2003
* 6,854,631 Pneumatic tool with self-sealing diaphragm valve system 8 2003
 
HITACHI KOKI CO., LTD. (10)
5,110,030 Pneumatic fastener driving tool having an air exhaust arrangement 41 1991
5,217,153 Driving machine having cylinder fixing arrangement 13 1992
5,647,525 Driver blade for a percussion tool 16 1995
5,720,422 Staple tacker with a striking nose and a staple magazine 33 1996
5,725,142 Pneumatic fastener driving tool having air exhaust arrangement 16 1996
5,873,510 Repetitive striking type pneumatically operated nail gun 51 1997
5,927,584 Pneumatic fastener driving tool having air exhaust arrangement 22 1998
6,220,496 Nailing machine 13 2000
6,572,000 Driving tool 12 2000
6,394,332 Nail gun with safety portion mechanism for preventing misfires 17 2001
 
BASSO INDUSTRY CORP. (6)
5,881,941 Stapler having a silencer 21 1997
6,024,269 Cylinder inlet valve for a power stapler 17 1999
6,173,963 Sealing assembly for an inlet valve of a power nailer 18 1999
6,059,166 Exhausted air dispensing device for a power nailer 26 1999
6,059,167 End base of a power stapler 16 1999
6,626,081 Air-seal structure for pneumatic nailers 13 2002
 
ILLINOIS TOOL WORKS INC. (6)
* 4,401,251 Bumperless gun nailer 39 1980
4,784,308 Fastener driving tool 48 1986
4,932,480 Driving tool with air-cooled bumper 58 1988
5,273,200 Fastener driving tool 18 1992
5,261,587 Fastener-driving tool with improved, adjustable, tool-actuating structures 65 1993
5,452,835 Positioning mechanism for powered fastener-driving tool 54 1995
 
SENCO BRANDS, INC. (4)
D379912 Pneumatic coil nailer 31 1996
5,732,870 Pneumatic fastener driving tool and an electronic control system therefor 43 1997
6,382,492 Pneumatic fastener driving tool and an electric control system therefore 26 1999
6,431,425 Pneumatic fastener driving tool and an electronic control system therefore 104 2000
 
BLACK & DECKER INC. (3)
D435769 Pneumatic fastener driver 32 1999
D442453 Cap for a pneumatic fastener driver 7 1999
6,648,202 Pneumatic fastening tool 21 2002
 
MAX CO., LTD. (3)
5,131,579 Nailing machine 36 1991
5,437,339 Air-pressure-operated implusion mechanism 32 1993
5,637,125 Air filter assembly for pneumatic tool 14 1995
 
SENCO PRODUCTS, INC. (2)
4,986,164 Pneumatic gun having improved firing valve 18 1989
5,918,788 Pneumatic fastener driving tool and an electronic control system therefor 52 1998
 
STANLEY WORKS C.V., THE (2)
5,020,712 Pneumatic powered fastener device 38 1989
5,207,143 Pneumatic fastener driving apparatus with an improved valve 28 1991
 
ALEMITE, LLC (1)
* 6,431,046 Pneumatic motor 6 2000
 
BASF CORPORATION (1)
6,087,436 Solvent resistant refinish paint composition and method of applying same 9 1995
 
BeA Italiana S.p.A. (1)
6,041,992 Portable device for inserting into predetermined seats in a body, such as an item of furniture, fixing and/or support elements for load-bearing members associated with said body, such as support feet for the item of furniture 24 1998
 
DE POAN PNEUMATIC CORP. (1)
5,706,996 Stapler gas exhaust system 12 1997
 
FASCO S.P.A. (1)
5,671,880 Compressed-air nail firing tool with head valve, operating with single and repeat firing 33 1996
 
Haubold-Kihlberg GmbH (1)
5,014,898 Pneumatically operated fastener driving implement 29 1989
 
MAKITA CORPORATION (1)
* 6,145,727 Pneumatic tool 35 1999
 
Makita Electric Works, Ltd. (1)
5,259,465 Filter for a pneumatic tool 44 1992
 
Paslode GmbH (1)
5,025,971 Annular cushioning buffer for fastener-driving tools 35 1989
 
PneuTools, Incorporated (1)
* 6,443,348 Palm nailer with magazine 18 2000
 
Q.E.P. CO., INC. (1)
* 6,095,392 Pneumatic nailer including safety trigger for disabling/enabling operation 23 1999
 
Other [Check patent profile for assignment information] (3)
4,480,528 Trigger valve for pneumatic nailing machine 21 1983
5,709,332 Nail driving system 21 1995
D463964 Head cap for hand carry air tacker 7 2000
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
GLOBALFORCE IP LIMITED (1)
8,770,457 Actuation system 0 2009
 
LABORATOIRE PRIMATECH INC. (1)
* 7,946,464 Actuator housing having a releasable actuator cartridge for use on hardwood flooring pneumatic nailers 1 2006
 
STANLEY FASTENING SYSTEMS, L.P. (1)
* 8,800,835 Fastener driving device with mode selector and trigger interlock 0 2009
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 9, 2015
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 9, 2019
Fee Large entity fee small entity fee micro entity fee
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