Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Tools & Hardware
Class Information
Number: 81/438
Name: Tools > Wrench, screwdriver, or driver therefor > Having work engaging and force exerting portion inserted into cavity (e.g., allen wrench, screwdriver) > Having structure adapting portion or tool for separation
Description: Wrench or screwdriver in which either the portion of the tool not intended to engage the cavity or the cavity-engaging and strain-exerting portion of the tool is constructed to facilitate the separation of the cavity-contacting and strain-exerting portion from the remainder of the tool.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
6655240 Insulating driver with injection molded shank and fluted working tip Dec. 2, 2003
6655243 Multiple-in-1 precision hand tool Dec. 2, 2003
6644150 Tool bit holding device with an improved retaining effect Nov. 11, 2003
6626071 Multi-functional hand tool assembly with storage handle and multiple tool attachments Sep. 30, 2003
6622597 Ratchel tool having longitudinally movable pawls Sep. 23, 2003
6550356 Tattoo technology Apr. 22, 2003
6550358 Hexagonal wrench socket adapter Apr. 22, 2003
6520509 Screw guide device with drill bit/screw bit and counter sink/drill stop means Feb. 18, 2003
6511199 Construction of hand tool set Jan. 28, 2003
6505530 Ink application device for tattooing or for making permanent make-up Jan. 14, 2003
6494121 Assembling screwdriver with hexagonal socket design Dec. 17, 2002
6490761 Telescoping tool handle Dec. 10, 2002
6474656 Power drivable chuck Nov. 5, 2002
6425307 Screwdriver having a plurality of interchangeable tips of various specifications Jul. 30, 2002
6363819 Knockdown hand tool structure Apr. 2, 2002
6354177 6-in-1 rotary tool Mar. 12, 2002
6352011 Two-ended screwdriver bits Mar. 5, 2002
6345553 Ink application device for tattooing or for making permanent make-up Feb. 12, 2002
6332382 Tool with polygonal head for interchangeable bits Dec. 25, 2001
6327942 Multiple bit driver Dec. 11, 2001
6298755 Dimpler tool Oct. 9, 2001
6276053 Device for fixing and removing stud seats for boots Aug. 21, 2001
6260445 Ratcheting composite screwdriver Jul. 17, 2001
6223633 Screwdriver with control portion for selectively retaining tips therein May. 1, 2001
6220129 Dual multi-bit screwdriver Apr. 24, 2001
6216348 Tool handle Apr. 17, 2001
6199872 Quick-release mechanism for screwdriver bits and the like Mar. 13, 2001
6193242 Snap-in chuck assembly and snap-in tool Feb. 27, 2001
6193241 Tool drive system Feb. 27, 2001
6189419 Stem structure for ratchet wrench Feb. 20, 2001
6176160 Bit for driving a threaded flange cover for a gas valve Jan. 23, 2001
6170363 Nut holding devices Jan. 9, 2001
6164168 Tool magnet holder Dec. 26, 2000
6155144 Retractable driving tool Dec. 5, 2000
6151994 Ratchet screwdriver Nov. 28, 2000
6148696 Ratchet screw driver Nov. 21, 2000
6128982 Spring-loaded screwdriver with cover and changeable heads Oct. 10, 2000
RE36797 Magnetic bit holder and hand tool incorporating same Aug. 1, 2000
6089133 Screwdriver Jul. 18, 2000
6085619 Tool bit adapter for universal socket tool Jul. 11, 2000
6076665 Compact tool holder for different tools Jun. 20, 2000
6062111 Multiple purpose hand tool for sports equipment May. 16, 2000
6047620 Tool for inserting and removing one-way fasteners, an off-center tool for inserting and removing one-way fasteners Apr. 11, 2000
6016728 Compact multi-purpose hand tool Jan. 25, 2000
6009779 Screwdriver set and kit having variable length interchangeable screwdriver shafts and extensions Jan. 4, 2000
5967002 Rachet wrench Oct. 19, 1999
5957014 Tool combination having two sections Sep. 28, 1999
5953969 Screwdriver, screwdriver bit or the like Sep. 21, 1999
5938212 Holder for non-locking bit in a locking bit chuck Aug. 17, 1999
5927160 Socket for socket wrench Jul. 27, 1999

1 2 3 4 5










 
 
  Recently Added Patents
MRAM with sidewall protection and method of fabrication
Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods
Front end for RF transmitting-receiving systems with implicit directional control and time-multiplexing method in submicron technology
Permutational memory cells
Soybean EF1A promoter and its use in constitutive expression of transgenic genes in plants
Pharmaceutical and diagnostic compositions for use in the treatment and diagnosis of neurodegenerative diseases or amyloid diseases
Crystalline form of zofenopril calcium
  Randomly Featured Patents
Speaker box
Standoff munition
Compact power reactor
Safety hinge
Method of handing off and a wireless communication device
Dual independent phasing system to independently phase the intake and exhaust cam lobes of a concentric camshaft arrangement
Chamber insulation for prevention of icing in air motors
High speed serial interface between image enhancement logic and ros for implementation of image enhancement algorithms
Systems and methods for time based sorting and display of captured data events in a multi-protocol communications system
Ceramic-metal junction structure and a method for manufacturing the same