Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7370421 | Folding knife with removable blade A knife is provided including a first side and a second side where the first side may be removably coupled to the second side. The knife further may include a blade removably secured to the handle and rotatable about a pivot point between an open position and a clos... | 05/13/2008 |
| 7356928 | Utility knife with safety guard having reduced play A utility knife has a protective guard that moves from a locked position to an unlocked position. Preferred mechanisms utilize a pawl that cooperates with a stop to reduce movement of the guard while the guard is in a locked position, and a simple latching mechanism... | 04/15/2008 |
| 7325314 | Handsaw having replaceable blade A handsaw includes a handle, a blade removably mounted on the handle, and a press button pivotally mounted on the handle and detachably engaged with the blade to lock the blade on the handle and unlock the blade from the handle. Thus, the blade can be detached from ... | 02/05/2008 |
| 7316070 | Self-retracting utility knife A utility knife includes a housing and a blade carrier movably mounted to the housing. The blade carrier includes a blade supporting surface for supporting a blade, wherein the blade carrier is movable between a retracted position with at least a substantial portion... | 01/08/2008 |
| 7229446 | Tool system for adapting a bone plate A tool system for working on a bone plate is described. The tool system includes a first tool and a second tool, used at the same time as the first tool to shorten or bend the bone plate. Each of the two tools includes one or more introduction openings with which in... | 06/12/2007 |
| 7162803 | Foldable tool retainer capable of updating the tool easily A foldable tool retainer capable of updating the tool easily comprises an upper casing sheet; an upper pad; a work tool; a lower pad; a resisting sheet; and a lower casing sheet. When updating the work tool, it is only necessary to press the upper button to drive a ... | 01/16/2007 |
| 7159319 | Tube cutter having retractable tool device A tube cutter includes a handle having a chamber to slideably receive a casing of a tool device, the casing includes an aperture and two side openings communicating with a U-shaped groove, a tool member includes a shank rotatably received in the aperture of the casi... | 01/09/2007 |
| 7094169 | Rotary cutter assembly A rotary cutter assembly (11) includes a rotary cutter (74) rotated by a motor (76) through a drive including pulleys (250, 264) and a belt (326) inside of a combination guard and belt tensioner assembly (260). The rotary cu... | 08/22/2006 |
| 7065885 | Handsaw having replaceable blade A handsaw includes a handle, a blade, and a locking member. Thus, the user only needs to drive the drive lever of the locking member to detach the snapping hook of the locking member from the snapping groove of the handle so as to detach the blade from the handle, s... | 06/27/2006 |
| 7062858 | Hand tool and knife for deburring A hand tool for deburring is provided, as well as a cutting blade to be inserted into the tool, the tool comprising a housing, and a rotatable holding device, the holding device being positioned in and being rotatable in the housing and having a chamber for releasab... | 06/20/2006 |
| 6968622 | Utility knife A utility knife having a handle and a blade holder which is pivotally mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The b... | 11/29/2005 |
| 6857348 | Arrangement for clamping a saw blade An arrangement for clamping a saw blade (12) includes a retaining member (6) on which a blade (12) for clamping can be mounted. The retaining member (6) is lockable in at least two positions such that each of the two positions clamps the ... | 02/22/2005 |
| 6701626 | Hand tool with changeable blade A hand tool has an elongated blade having a longitudinally inwardly projecting tang having a longitudinal back edge formed with a plurality of transversely directed teeth, a longitudinal front edge, and an elastically transversely deflectable retaining fo... | 03/09/2004 |
| 6553671 | Folding knife with a button release locking liner The present invention is an improved folding knife having a handle with opposing first and second sides and a rotatable blade coupled with the handle and moveable between a locked position at which the blade extends from the handle and an unlocked positio... | 04/29/2003 |
| 6516525 | Handsaw A handsaw includes a handle, a saw blade pivotally attached to the handle and a position device movably mounted in the handle to selectively hold the saw blade in place. The handle and the saw blade form an angle that is adjustable because the saw blade i... | 02/11/2003 |
| 6508003 | Universal saw adapter An adapter is provided for removably coupling a saw, including a tang portion having an aperture formed therein, to a tool. The adapter includes a base member and a clip pivotally coupled to the base member. The base member has first and second ends, and ... | 01/21/2003 |
| 6131292 | Utility knife A utility knife has two shells that are pivoted or hinged to each other at one end to permit opening the knife handle formed by the shells for insertion or replacement of a knife blade. The two shells are interlocked with each other by a latching mechanis... | 10/17/2000 |
| 6105260 | Universal saw adapter An adapter is provided for removably coupling a saw, including a tang portion having an aperture formed therein, to a tool. The adapter includes a base member and a clip pivotally coupled to the base member. The base member has first and second ends, and ... | 08/22/2000 |
| 5979065 | Handle assembly for a foldable saw A handle assembly includes a handle body formed with a longitudinal blade receiving space, a coupling member mounted on the handle body within the blade receiving space and confining an insert slit aligned and communicated with the blade receiving space, ... | 11/09/1999 |
| 5940970 | Utility knife A utility knife includes a holder having two mating halves which combine to develop a first cavity located at a proximal end of the holder, for receiving a blade for active use, and a second cavity located toward a distal end of the holder, for receiving ... | 08/24/1999 |
| 5930902 | Saw with a removable saw blade A saw includes an elongated saw blade having a rear end portion which is formed with a hooked extension and a locking hole having a restricted entrance. The handle member has left and right side walls which confine a blade receiving space therebetween, an... | 08/03/1999 |
| 5864952 | Knife for woodworking A knife for woodworking, which is convenient for a user to dispose a blade thereinto, is disclosed. The knife includes a first casing and a second casing. The two casings are pivotedly joined at one end thereof . The first casing has an insert mounted the... | 02/02/1999 |
| 5797188 | Hand-held utility knife A hand-held utility knife (20) has two handle portions (22, 23) hinged together at the rear end (26) of the handle (21) by means of two lugs (36, 37) of one handle portion (22) projecting into two recesses or cavities (38, 39) of the other handle portion ... | 08/25/1998 |
| 5769094 | Folding knife with blade carrier A folding knife having a cantilevered leaf spring member with an engagement tab at the free end thereof. The engagement tab engages with a notch defined in a pivoting blade carrier pivotally connected to the knife handle member. Carried within the blade c... | 06/23/1998 |
| 5414933 | Cutting device The present invention is directed to a letter opening device comprising an elongated tubular handle, a removable tubular cap and a generally L-shaped cutting guide including a cutting blade and a blade holder. The cutting guide is affixed to the forward e... | 05/16/1995 |
| 5355584 | Hose cutting device A hose cutting device comprises an upper seat and a lower seat. The upper seat is provided with a cutting tool and two connection portions, each of which has a retaining slot. The lower seat is provided with a cutting tool receiver corresponding in locati... | 10/18/1994 |
| 5353505 | Grip scissors A pair of grip scissors comprises a generally U-shaped spring member integrally made of a resin and a pair of blade members attached to the respective free ends of the spring member. The respective free ends of the spring member are provided with an oppos... | 10/11/1994 |
| 5331739 | Disposable nail cutting nippers Disposable nail cutting nippers including a body member having a one piece construction to provide first and second gripping portions pivoted about a front hinge portion to be adjacent to each other, and a removable cutting member having cutting blades di... | 07/26/1994 |
| 5153995 | Folding knife This invention relates to a folding knife including a blade having a heel pivotally mounted onto an intermediate member made of plastic or composite material, provided with a blade-spring co-operating with the blade heel, and inserted, then stuck within a... | 10/13/1992 |
| 5131149 | Folding knife A blade pivots on its tang into and out of a slot in a blade carrier. The carrier, in turn, slides in a handle between two positions. In the first position, the blade is prevented from pivoting out of the carrier by contact with the handle but in the seco... | 07/21/1992 |
| 5092045 | Lock block for a multipled-positioned knife or device A locking mechanism (39) comprising a rectangularly-shaped block (40) seated in a corresponding opening (41) of a blade (31) and a corresponding opening of a handle scale (32). Block (40) depresses into opening (41) after which blade (31) is free to rotat... | 03/03/1992 |
| 5062210 | Cactus thorn removing tool A cutter for removing thorns from cactus is disclosed including a fork shaped member having a pair of prongs pivotably connected together at one end and having tabs at free ends received in traverse slots in a conventional wafer type razor blade. A tie me... | 11/05/1991 |
| 5036591 | Utility knife This invention relates to utility knives used to cut various items, including cartons, cardboard, string and wallpaper. Specifically, the invention provides a disposable one-piece razor blade utility knife in which the blade is adjustable yet permanently ... | 08/06/1991 |
| 5031322 | Utility knife A utility knife having a main body formed from a pair of body halves which are assembled together. The main body has an opening at the front with means to prevent the pair of body halves from spreading apart and with means to prevent the blade from swayin... | 07/16/1991 |
| 4947551 | Laterally foldable lock knife A laterally foldable knife which includes a locking member slidably engageable with the blade to lock the blade into either its extended or retracted position. The locking member includes protrusions one of which is wedged between the blade proximal end a... | 08/14/1990 |
| 4936014 | Utility knife A utility knife comprises a hollow casing formed by a pair of elongated members pivotally mounted one to the other at one end of the casing. A blade passage is provided at another end of the casing. The elongated members are adapted for movement in substa... | 06/26/1990 |
| 4926554 | Collapsible knife A clasp knife has a pivotally mounted blade which can be swung between an operative extended position and a shrouded position within a body and handle using only one hand. The knife incorporates an actuating lever carrying a latching dog which locks the b... | 05/22/1990 |
| 4777725 | Blade holder capable of holding two different deburring blades and a deburring tool utilizing same There are disclosed a blade-holder capable of holding two different deburring blades and a deburring tool utilizing the blade-holder. The blade-holder comprises of a rod, two longitudinal bores, one at each end of the rod and releasable locking means situ... | 10/18/1988 |
| 4604805 | Holder for detachable blades A holder for a detachable blade has a handle part and a blade retaining part formed by a pair of body sections pivotally connected for movement between open and closed positions. A latch member supported within the hollow handle part, and which retains th... | 08/12/1986 |
| 4571829 | Quick release hacksaw blade tensioning device A blade tensioning device for a hacksaw or the like. A generally conventional hacksaw is provided with a plate in one leg of the frame, and the blade receiving pin is on the plate. A toggle joint is arranged to rotate the plate to move the pin and loosen ... | 02/25/1986 |
