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Class 30/320 - Adjustable blade


Subclass of Class 30 - Cutlery
Definition: Implements in which the blade is adjustable relative to
No. of patents: 66
Last issue date: 04/15/2008


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NumberTitleIssue Date
7356928Utility 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
7140110Folding 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
7073263Hand-held tool with discal blade
A hand-held tool includes a body having a handle, a discal blade rotatably supported at a tip end of the body, a cover for covering the discal blade at one side in a thicknesswise of the discal blade, an operating member connected to the cover for reciprocal movemen...
07/11/2006
6938345Combination utility knife
A retractable blade utility knife includes a knife housing, a blade, a pencil housing, a pencil sharpening slot, and a rear cover. The knife may further include a rope-cutting recess and a cutting surface in a lower end and a sawing surface in an upper end of the bl...
09/06/2005
6862812Cutting device
A cutting device (1) for floor coverings, intended for cutting or starting a tear of seams, includes a base body (2) with at least one blade (3) that is mounted on the base body (2), and a contact edge (4), formed on the bottom sid...
03/08/2005
6848185Utility knife
A utility knife including: a body defining an interior cavity, and a blade carriage slidably disposed within the cavity. The blade carriage is configured for removably receiving at least one blade, and is at least partially slidably removable from the cavity, thereb...
02/01/2005
6718640Cutting tool
A cutting tool having a blade and a member which is biassed toward a safety position, in which the member forms a guard for the blade, but which may be displaced for exposing the blade by bringing the tool into cutting contact with a workpiece. The cutting tool incl...
04/13/2004
6708410Cutter knife for left handed and right handed persons
A cutter knife in which a blade connected to a slider is slidably held in an elongated sleeve member. The slider is provided with a first engagement protrusion and a second engagement protrusion located on a forward end and a backward end in the sliding direction of...
03/23/2004
6550144Hollow-handle razor knife with blade slide
A razor-knife housing has a neat part retaining a blade and displaceable in the housing through a front-end slot between an extended position with the blade mainly outside the housing and a retracted position with the blade wholly inside the housing. A re...
04/22/2003
6460254Cutter
Around a push button formed on an arm 3, teeth are disposed at a regular angle, and around the push button inserting hole in a handle 4 grooves are disposed corresponding to the teeth, thereby, by biasing the arm 3 with a compressed coil spring to engage ...
10/08/2002
6438850Roller cutter with retractable and removable cutter wheel
A roller cutter has a partially circular housing having a slit extending in from receiving a cutter wheel, which can be selectively shifted between an extended cutting position and a retracted position enclosed within the housing to protect the cutter whe...
08/27/2002
6349476Chicken-tender-scoring knife assembly
A self-adjusting knife assembly for scoring tenders from chickens, the assembly having a pair of generally parallel handle halves in spaced relation and positively connected by a connector pin, to permit a pair of generally parallel knives, which are moun...
02/26/2002
6161290Utility knife
A utility knife having a holder body for supporting a blade slidably between a protruded position and a returned position, the utility knife comprising a spring means to be operated against a slider supporting the blade, a slider for manually moving said ...
12/19/2000
6006433Multi-purpose knife
A multi-purpose knife for providing multiple blades includes an elongated housing having opposing side portions. Each of the opposing side portions includes a channel extending a length of the housing. The channels each have open outer ends and an open fr...
12/28/1999
6000136Knife handle
A knife handle such as in a utility knife or box cutter knife with a blade carrier having a planar blade support, parallel flanges and laterally projecting tabs for securing the blade in position on the carrier. The knife handle provides improved retentio...
12/14/1999
5943929Bullet blade knife and method of operation thereof
A utility tool has a knife blade and a housing. The housing includes a handle for supporting the knife blade adjustably in a manner so that the blade is rotatable on a shaft for supporting the blade. The shaft is carried by a pair of bearings to a plurali...
08/31/1999
5881463Carpet face cutter with coacting surfaces and cutouts for securing the lowermost corner of each cutter blade against deflection
A cutter for face cutting of carpeting is provided. The cutter includes a floor engaging base and a plate attached to the floor engaging base which is slidable along an inclined path forming an acute angle with the base to form between the movable plate a...
03/16/1999
5778536Combination slotting, slitting and scoring tool for making corrugated boxes
An apparatus for slitting, scoring, and slotting paperboard and the like for the creation of paperboard boxes and other shapes. The apparatus comprises a handle having a built-in three bladed slotting knife that is retractable and quickly allows a worker ...
07/14/1998
5700274Refractive surgery knife
The refractive surgery keratotomy knife has a handle with a footplate and a holding member for receiving and holding a flared surgical blade fixed to the handle and knife body. The footplate is adapted to be placed against the cornea of the eye. The blade...
12/23/1997
5680705Multi-blade knife
A multi-bladed knife is formed with three parallel blades attached to a handle by means of a screw rod and spring arrangement mounted at front and rear portions of the handle, respectively. The screw rod fastens the blades to the front end of the handle a...
10/28/1997
5613300Ergonomic utility knife/box cutter and method of making
A utility knife/box cutter includes an ergonomically-shaped handle portion with exterior stippling to provide a good grasp upon the knife. Within the handle portion, a channel member is received in a forwardly extending cavity and movably receives a cutti...
03/25/1997
5497553Safety cutter
A safety cutter is provided to prevent un-actuated blade release. The cutter comprises a housing within which a slidable blade can be completely concealed. The blade is connected to a sliding member which controls blade movement in and out of the housing....
03/12/1996
5337442Scraper apparatus
A new and improved hand-held scraper apparatus is disclosed for scraping a surface at a plurality of predetermined scraping angles. The apparatus includes a blade support, and the apparatus is used by an operator for scraping a surface with a push-pull sc...
08/16/1994
5299357Disposable surgical scalpel with safety guard
The scalpel includes a handle mounting a scalpel blade at one end and having a slot opening through and between its opposite sides. A guard, including two side members straddling the handle, is mounted for sliding movement between a protective position ov...
04/05/1994
5269063Step-slide type cutter knife with automatic lock mechanism
A cutter knife for locking a slider by the engagement between a leaf spring member and an engaging notch of a cutter main body. The leaf spring member has a flat spring section; and a U-shaped locking section projecting therefrom at a right angle therewit...
12/14/1993
5181320Wallpaper trimming tool and its methods of use
A trimming tool for trimming the edges of wallpaper in which separate razor blades are supported on respective arms slidably mounted on a handle for movement between extended operative positions beyond the edge of a blade member secured to the handle. The...
01/26/1993
5086562Utility 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...
02/11/1992
5031322Utility 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
5014429Mechanism for detaching blade segments from a segmented knife blade
A utility knife includes a mechanism for detaching the individual blade segments along segmentation lines from a segmented knife blade. The detachment mechanism includes a plunger located at the forward end of the utility knife. An adjustment mechanism ad...
05/14/1991
5012581Universal utility knife
A utility knife especially suitable for use by either right-handed or left-handed persons includes a generally symmetrical casing, as viewed from the side, having a generally pointed leading edge and two surfaces sloping back at equal angles from the poin...
05/07/1991
5005290Utility knives
A utility knife comprises a lower elongate part shell 1 and an upper such part shell 3 forwardly fitted with interengaging wedging surfaces whereby they clamp together on relative longitudinal movement. This movement is achieved by turning nut 2 on shank ...
04/09/1991
4955138Utility blade scraper
The utility blade scraper (20) including a handle (12) and a trigger (14) slidably mounted in a trigger receiving housing portion (13) of the handle (12). A utility knife blade (16) being mountable on a blade mounting area (28) of the trigger (14)....
09/11/1990
4920645Vegetable or fruit peeler
A household utensil, in particular a fruit or vegetable peeler is composed of a handle, a cutting blade and two support bars parallel to the blade. The blade and at least one of the support bars form a unit which moves in translation towards the handle an...
05/01/1990
4813132Utility knife
A utility knife employs a slide having a cantilevered lever for capturing a blade therein. A leading blade in a reservoir is capturable by the slide using a tooth resiliently affixed to the slide which is positioned to enter a locking hole in the blade. T...
03/21/1989
4794693Slider for a cutter knife
A slider for a cutter knife comprises a slider main body (1) having a protrusion (6) for engaging a cutter blade (40), the blade and slider main body then being inserted into a holder (30) for longitudinal movement therein. A resilient stopper (3) is prov...
01/03/1989
4744146Adjustable-blade safety knife with carton-cutting guide
An improved, adjustable-blade safety knife of the type having a replaceable, single-edge blade slidably-retained within a single-piece handle against a keeper plate having a tang to engage the blade in a side-by-side assembly for protraction and retractio...
05/17/1988
4663845Utility knife
A knife holder for a utility knife is disclosed comprising an elongated case forming a blade opening at the forward end and an interior guide for guiding a blade carrier and a blade carrier adapted for mounting a blade and being slidably mounted to the gu...
05/12/1987
4621425Retractable knife handle
A retractable knife handle employs a blade carrier mounting a blade for longitudinally moving the blade between retracted sheathed and extended unsheathed positions. A leaf spring extends from the blade carrier to engage an inwardly projecting cam surface...
11/11/1986
4586256Knife handle
A knife handle employs a blade carrier having a planar blade support, a pair of parallel projecting flanges, and a laterally projecting lug for securing a blade in position to the carrier. A lateral retention tab extends from said carrier to capture an up...
05/06/1986
4553325Cake cutter with an adjustable blade
An improved cake cutter device of the type having a cutting blade removably attached to a gear housing with rack and pinion means in conjunction with a plate to determine the length, and a helical screw in conjunction with the cutting blade to determine t...
11/19/1985
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