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| Number | Title | Issue Date |
| 8171645 | Knife blade opening mechanism A folding knife incorporates an opening assist mechanism that functions to drive the blade from the closed to the open position. A pair of torsion springs held axially on the blade axis pin and within a pair of bushings are stationary relative to the knife handle. O... | 05/08/2012 |
| 7854067 | Low friction folding knife A folding knife has a slot disposed in the thickness of the tang with a roller cam extending outside of the perimeter of the tang and rotatably attached within the slot. A safety assembly disposed within the handle has a stud extending through a slot in the handle a... | 12/21/2010 |
| 7827697 | Low friction folding knife A low friction folding knife has a blade with a distal end and a tang. The tang has a slot disposed in the thickness of the tang with a roller cam extending slightly outside of the perimeter of the tang and rotatably attached within the slot. There is a safety assem... | 11/09/2010 |
| 7748122 | Knife blade opening mechanism A folding knife incorporates an opening assist mechanism that functions to drive the blade from the closed to the open position. A pair of torsion springs held axially on the blade axis pin and within a pair of bushings are stationary relative to the knife handle. O... | 07/06/2010 |
| 7694421 | Flick knife with a lever frame A flick knife with a lever frame has a hilt, a blade, a lever frame and a spring. The blade has a proximal end pivotally mounted in the hilt. The lever frame is mounted through the hilt and has a front connector that abuts the proximal end of the blade to rotate the... | 04/13/2010 |
| 7395599 | Blade-assisting mechanism for a folding knife A folding knife is disclosed. The folding knife includes a handle; a blade connected to the handle in a manner allowing pivoting of the blade between a closed position in which the blade extends along the handle, and an open position in which the blade extends away ... | 07/08/2008 |
| 7380340 | Folding tool with inlay release A folding tool with inlay release preferably includes a blade, a lock side plate, a release side plate, a cantilever spring and a release inlay. One end of the blade is pivotally retained between the lock side plate and the release side plate. One end of the cantile... | 06/03/2008 |
| 7340838 | Folding knife with safety lock A folding knife having a safety lock moveably mounted on a handle of the knife. The safety lock may slide to a locking position to prevent the blade from opening out of the handle by obstructing the path of the blade as the blade is urged from a closed position to a... | 03/11/2008 |
| 7326228 | Medical instrument for surgery A medical instrument especially suited for the HALS operating technique that can be entirely inserted together with one of the surgeon's hands into the operating area for operating purposes and includes a housing [(1)] and at least one tool [(2)] arran... | 02/05/2008 |
| 7313866 | Spring assist knife A spring assist folding knife and method of biasing a blade in a folding knife. The folding knife includes a blade, liner, and handle. The blade includes a first recess for receiving a pivot pin. The blade includes a second recess offset from the axis of rotation. A... | 01/01/2008 |
| 7305768 | Locking mechanism for folding tool A hand tool—typically embodied as a knife—incorporates a blade or implement lock mechanism for securely locking the implement such as a blade in the open position. The lock mechanism locks the blade in the open position and allows it to be released so that the b... | 12/11/2007 |
| 7302760 | Folding knife with dual-action piston A folding knife having a handle including a first side and a second side spaced apart to define a cavity; a blade including a cutting surface and a tang; and a holding mechanism including a piston adapted to be manually moved and having a first stop element of a fir... | 12/04/2007 |
| 7296355 | Adjustable blade-assisting mechanism for a folding knife A folding knife is disclosed. The folding knife includes a handle; a blade connected to the handle in a manner allowing movement of the blade between a closed position in which the blade extends along the handle and an open position in which the blade extends away f... | 11/20/2007 |
| 7293360 | Knife blade opening mechanism A folding knife incorporates an opening assist mechanism that functions to drive the blade from the closed to the open position. The knife may be either automatic or semi-automatic. In one embodiment a pair of spring arms, one located to each lateral side of the bla... | 11/13/2007 |
| 7284329 | Folding knife with cantilevered retainer A folding knife having a handle and a blade pivotally attached to the handle for pivoting between a retracted position and an extended position. A cantilever member is connected to the handle, and the cantilever member includes a free end. The blade includes a first... | 10/23/2007 |
| 7278213 | Hand tool stop pin A hand tool such as a folding knife that incorporates a blade stop pin that stops rotation of the blade in the open position is described. The stop pin defines a multifaceted face having plural surfaces, each having a radial distance from an axial centerline that is... | 10/09/2007 |
| 7275321 | Folding knife assembly A folding knife assembly includes a knife handle, a knife body, and a brake portion, wherein the knife body can be turned into or out of the knife handle, and the brake portion is movably coupled to a pivotal position of the knife handle and the knife body. If the k... | 10/02/2007 |
| 7246441 | Convertible knife system An automatic folding knife having a sear provided on a pivoting blade, and an engagement member, configured for upward movement, for selectively engaging the sear. The engagement member extends generally to the exterior of each side portion of the handle. A spring-b... | 07/24/2007 |
| 7243430 | Folding knife with opening and closing assistance A folding knife with opening and closing assistance preferably includes a blade, a first frame, a second frame, a coil spring, an open lock pin and a closed lock pin. One end of the blade is pivotally retained between one end of the first and second frames. The open... | 07/17/2007 |
| 7222429 | Locking folding knife and associated methods A folding knife includes a handle having a distal portion and a proximal portion, and a blade rotatably connected to the distal portion of the handle. The blade may be moveable between an opened position and a closed position, and may have at least one lock member r... | 05/29/2007 |
| 7181849 | Folding knife with opening and closing actuator In one embodiment of the present invention a laterally folding knife is described incorporating an actuator mechanism permitting the knife blade to be moved from open and closed positions without the need for a user to touch the blade. Further, the folding knife can... | 02/27/2007 |
| 7182001 | Tool frame member including spring A frame member for the handle of a folding knife or multipurpose tool includes an integral flange with an integral leaf spring. Frames are shown in the form of a channel with an integral external flange extending outwardly from the top of a channel wall in a directi... | 02/27/2007 |
| 7146736 | Folding knife with cantilevered spring An assisted opening folding knife having a blade with an engagement surface extending generally radially outwardly with respect to the pivot axis of the blade. A cantilevered leaf spring contacts the engagement surface and immediately urges the blade to the extended... | 12/12/2006 |
| 7140110 | Folding knife having a locking mechanism A folding knife is disclosed. The knife includes a handle; a blade having a tang pivotably connected to the handle allowing pivoting of the blade between a closed position in which the blade extends along the handle, and an open position in which the blade extends a... | 11/28/2006 |
| 7124509 | Spring powered toggle joint lock for a folding knife A “spring powered toggle joint lock” for a folding knife; comprising a blade lock of three primary elements. A rotating toggle link at the rear of the knife handle connected by a pivoting knee joint to a traveling toggle, which is in turn pivotally joined to the... | 10/24/2006 |
| 7107686 | Spring assist knife A spring assist folding knife and method of biasing a blade in a folding knife. The folding knife includes a blade, liner, and handle. The blade includes a first recess for receiving a pivot pin. The blade includes a second recess offset from the axis of rotation. A... | 09/19/2006 |
| 7086157 | Folding knife having a biased blade A folding knife according to one embodiment is provided and includes (a) a handle defining a blade cavity; (b) a blade having a first end which is pivotably coupled to the handle about a pivot; and (c) a biasing element disposed within the blade cavity of the handle... | 08/08/2006 |
| 7062856 | Folding tool A folding knife, comprising a blade pivotally connected to an elongate handle defining a recessed blade cavity and a blade opening assembly constructed and arranged to assist movement of the blade to an open position, in which the blade is extended. The blade openin... | 06/20/2006 |
| 7051441 | Leaf spring assisted opener A leaf spring assisted opener for a folding tool such as a folding knife. The folding tool includes tool pivotally carried by a handle. The tool defines a tang at the proximal end. A leaf spring is carried within the handle for assisting in the opening of the tool. ... | 05/30/2006 |
| 7008076 | Folding knife light tool A folding knife light tool with an ergonometric handle in which an illuminating means whether an LED or light bulb or a laser light is incorporated into the handle housing in the spaces existing between the blade, the locking mechanism, and the handle. A knife handl... | 03/07/2006 |
| 7000323 | Fixed-blade knife with pivotable side pieces A fixed-blade knife includes a unitary blade having an implement, a tang, and a pivot region between the implement and the tang. The unitary blade is disposed between a pair of parallel and spaced-apart side pieces that pivot to cover or expose the implement. In the... | 02/21/2006 |
| 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 |
| 6959494 | Folding blade knife with spring assisted pivoting feature A folding knife having a blade and integral tang pivotally mounted to a handle with a cantilever spring fixedly attached at one end to the handle and extending to a free, terminal end having a lobed portion. A camming member fixed to the tang has a camming surface s... | 11/01/2005 |
| 6941661 | Folding knife A biasing system for the blade of a folding knife includes one component or assembly applying a force tending to move the knife blade from a closed position, nested in the handle, to an open position, extending from the handle. A second component or assembly resists... | 09/13/2005 |
| 6789323 | Folding tool A folding tool such as a knife or multitool has a handle defined by opposed side walls with a slot therebetween. An implement such as a blade is pivotally connected to the handle. A spring such as a liner disposed between the implement and one side wall has a longit... | 09/14/2004 |
| 6732436 | Folding tool A folding tool such as a knife or multitool has a handle defined by opposed side walls with a slot therebetween. An implement such as a blade is pivotally connected to the handle. A spring such as a liner disposed between the implement and one side wall has a longit... | 05/11/2004 |
| 6651344 | Foldable knife structure The present invention relates to a foldable knife structure, which comprises a handle; a blade pivotably conjoined to a position adjacent to one end of the said handle; a set block adjacent to the pivotable conjoinment position of the blade and the said h... | 11/25/2003 |
| 6397476 | Opening and closing assisting mechanism for a folding knife This invention relates to a mechanism in a folding knife that urges the blade to move to an open and alternatively to a closed position. The knife generally consists of a blade having a tang extending outwardly from the blade; a handle having at least one... | 06/04/2002 |
| 6256887 | Folding knife blade release mechanism A knife has a locking arm with a laterally displacing spring bias that retains the locking arm in a notch on the blade of the knife when the knife is in the open position. A lateral displacement of the locking arm is required to close the knife.... | 07/10/2001 |
| 6105255 | Folding knife A folding knife with a blade having a bottom end edge and a handle grip portion. The blade is pivotally mounted at one end of the handle grip portion. The handle grip portion has a hollow slot. The folding knife includes a leaf spring with first and secon... | 08/22/2000 |
