Abstract: A fixed blade knife or bayonet having integral blade and tang portions and a handle having a cavity extending therethrough from distal to proximal ends. A slot is formed in the tang, extending from an open end at the terminal end of the tang to a closed end, with a narrower slot portion extending from the open end and adjoining a wider portion which extends to the closed end of the slot. A nut having a threaded bore is formed with a first cross dimension slightly smaller than the width of the wider slot portion and a second cross dimension, larger than and perpendicular to the first cross dimension. The nut is inserted laterally into the wider slot portion and the tang, with the nut carried therein, is inserted into the handle cavity, which has a cross sectional outline corresponding to that of the combined tang and nut. A screw is inserted into the bore which forms a portion of the cavity extending into the proximal end of the handle.

Abstract: A reciprocating saw is provided having a motor oriented within a housing for operably driving a saw bar and blade holder in a reciprocating motion. The blade holder has a longitudinal slot for receiving a saw blade, and a transverse aperture extending into the longitudinal slot for receiving a follower. A sleeve is pivotally mounted upon the body, and has a circum-axial cam groove formed therein cooperating with the follower. Rotation in a first lock direction urges the follower into the longitudinal slot for engaging the saw blade and rotation of the sleeve in a second unlock direction allows the follower to retract. A biasing member is included for biasing the sleeve in the first lock direction. The sleeve central bore is adapted to provide clearance for the follower such that the sleeve is permitted to axially translate relative to the body for assembly or disassembly of the blade holder.

Abstract: Blade clamps (26, 110) may reliably secure blades (22) to reciprocating power tools (10). The power tools may include a reciprocating drive shaft (24) partially extending from the tool housing (12). A first end of a rod (37, 112) may be attached to the drive shaft. A second end of the rod may include a blade slot (37a, 112a) defined to receive the blade so that the longitudinal axis of the blade aligns with a longitudinal, reciprocating axis of the drive shaft. An aperture (37b) may be defined substantially perpendicular to the first blade slot and may communicate with the blade slot. A sleeve (33, 115) may be rotatably mounted on the rod so as to pivot between an initial locking position and a blade replacement position. A cam surface (33c, 116) is defined on an inner surface of the sleeve. A stopper (33e, 116d) projects from the cam surface or the rod and defines the blade replacement position.

Abstract: A metallic housing utility knife and method for making the device with a soft over molded elastomeric cover to provide blister free comfort and slip proof safety. The cover or skin is molded into the unique structure of the housing in a fashion that results in mechanical bonds that embrace the cover on the housing. The knife includes flexible posts from the cover that project into the blade storage compartment of the housing to prevent internally stored spare blades from moving within the storage compartment. An elastomeric blade clamp integrally formed with the cover serves to restrict lateral movement of blades of varying sizes when installed in a cutting position within the knife assembly. A rear quick release latch and interlocking housing sections provide a convenient way to open and close the knife and assure that it is also secure and firmly held when locked in a safe cutting position.

Abstract: A cutter for vehicle safety belts or the like includes a body having a head in an upper portion and a handle in a lower portion. The head has a blade base surface for a cover plate to be put thereon. The blade base surface is formed relatively lower for receiving the cover plate thereon. The cover plate can be pried open for renewal of a blade. A first blade groove for placing a blade for cutting and a second blade groove for placing another blade on standby are provided parallel to each other in the head. The handle is formed with a small recess on an upper front edge and a large recess on a lower front edge and has a tapered projection positioned between the two recesses for enabling a user to stably hold the handle conveniently.

Abstract: A hand tool having a handle provided with a mating surface for detachably securing the handle to a removable attachment. The mating surfaces of the handle and the removable attachment are exposed when not secured together. This feature facilitates cleaning of the device.

Abstract: A blade handle for a surgical blade which allows the surgical blade to be easily removed therefrom is disclosed.

Abstract: A safety scalpel blade assembly comprising a scalpel blade, a guard which extends at least about the cutting edge of the blade, and releasable attachments device which releasably attach the blade to the guard as the assembly is being attached to the scalpel handle, thereby preventing the blade from cutting a person, but which releases the blade from the guard when the blade is attached to the blade carrier of the scalpel handle.

Abstract: 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 retaining part in slidable on the seat part between a closed position overlying the blade and holding it on the seat part and an open position exposing the blade on the formation and allowing it to be removed therefrom. The parts have faces normally engageable with each other to prevent sliding of the retaining part on the seat part. One of the faces is displaceable transversely to the other to allow the parts to slide relative to each other. In the extended position of the seat part and open position of the retaining part, the blade is is not retained on the seat part by the retaining part.

Abstract: A utility knife has a flat blade formed with at least one throughgoing hole, a housing member forming a seat adapted to receive the blade, and a retainer member engageable with the blade on the seat. A pair of respective pivot elements on the housing and retainer members allow pivoting of the retainer member between a closed position engaging the blade and holding it against the seat and an open position exposing the blade and permitting its removal from the seat. Respective threadedly interengageable holding elements including a threaded screw on one of the members extending through the hole of the blade and a nut on the other of the members secure the retainer member in the closed position. The threaded screw is fixed in the housing member and has a threaded shaft projecting up from the seat. The nut is rotatable on the retainer member. The retainer member is formed with a large-diameter recess receiving the nut with radial play.

Abstract: 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 first and second surfaces extending between therebetween. An opening is formed in the first and second surfaces of the base member, proximate the first end. The opening is adapted to receive an axle of the tool. The base member further includes a slot formed in the first surface and a projection extending in to the slot. The slot is adapted to receive the tang portion of the saw, and a projection is adapted to be received in the aperture to align the saw with the base member. The pivotally coupled clip is movable between a closed position, in which the saw is retained in and secured to the base member, and an open position, in which the saw is removable from the base member.

Abstract: The object of the invention is a cutter with a monoblock blade carrier with securement and release of the blade by pressure, characterized in that said blade carrier (1) is made by molding from a semi-rigid plastic material and comprises two substantially flat shells (1a, 1b) folded facing each other, connected by a thin bridge (2) and defining between them a recess for the reception of a blade (3) open at least on its sides, one of the portions (1a) comprising on its internal surface a projection (10) adapted to penetrate a hole (5) in the blade (3) so as to trap it in said recess (8, 8a) and being, adjacent this latter, deformable by pressure (P) so that, by a lever effect, said projection (10) moves away from the opposite surface of the other shell (1b), thereby permitting the free passage of the blade (3) outside its recess (8, 8a).

Abstract: An adjustable safety utility knife includes an elongated ergonomically shaped handle formed of two elongate shell members each having a peripheral edge and an outer generally convex surface and an inner generally concave surface. The shell members are fastened at the peripheral edges along a vertical parting plane to form an elongated internal cavity. The handle defines a front end, a back end and an intermediate portion suitable for being gripped by a user and also defining top and bottom surfaces extending along opposite sides of the shell members along the peripheral edges. The handle has a slot-like aperture at the front end substantially aligned with the parting plane and dimensioned for passage of a flat cutting blade therethrough. A guide element within the elongated cavity guides the cutting blade between a first position for safely storing the blade fully inside the cavity and a second position for selectively extending the blade beyond the aperture to expose at least a portion thereof.

Abstract: A tool for cutting the sealant surrounding a windshield of a vehicle comprises a handle for gripping by a user to which a blade is removably attached. In particular, the blade is received in a blade holder portion forming a channel for receiving the blade and holding a substantial portion of the sides of the blade. In addition, the blade can be quickly removed and replaced by manually actuating a blade release mechanism. The blade release mechanism is also configured to automatically engage a blade and secure the blade relative to the blade holder when the blade is properly inserted into the blade holder. A pull handle is secured relative to an end of the blade holder as with a cable pivotally mounted to the end of the blade holder at a position advantageous for applying a force to the blade when cutting the sealant surround the windshield of a vehicle.

Abstract: The tool of the present invention is designed to facilitate small repairs in walls. It is useable to repair dents, holes, and cracks in dry wall, plaster, stucco, or like materials. It is also useable to install drywall. The tool has a plurality of groove forming cutting edges which are used to cut into the damaged area or the non-beveled peripheries of newly installed panels to a predetermined depth. The grooves help loosen the material. A gouging blade of the tool is used to remove the weakened material and form a trough of a predetermined depth. Edges of the head of the tool project out on either side of the gouging blade to act as a depth control agent. The tool of the present invention is used in the method of the present invention in which a plurality of grooves are formed centered on a crack, criss cross grooves are also formed to further weaken the layer of the wall material, a trough is gouged out, netting is placed in the trough, and compound or plaster is spread into the trough.

Abstract: A reciprocating tool (e.g., a reciprocating saw) comprising a housing, a spindle mounted for reciprocating movement within the housing and having an end adapted to receive a saw blade, and a blade clamp mechanism connected to the spindle and adapted to attach a saw blade to the spindle. The blade clamp mechanism includes an actuating member mounted on the end of the spindle and capable of moving relative to the spindle between an engaged position and a disengaged position, and a locking member operatively associated with the actuating member and moveable relative to the spindle between a locked position that locks a saw blade to the spindle and an unlocked position that releases the saw blade.

Abstract: A two stage releasing interlocking system for mounting a medical device tool which includes a jaw head having an aperture. A collet having an upper portion and a lower portion is rotatably mounted within the jaw head. The upper portion of the collet has an aperture and is substantially aligned with the aperture of the jaw head. A moving means moves the lower portion of the collet into an opened position and a closed position with respect to the upper portion of the collet. Actuating means prevents the moving means from moving the lower portion of the collet into the opened position when the actuating means is in a first position and permits the moving means to move the lower portion of the collet into the opened position when the actuating means is in a second position.

Abstract: 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 first and second surfaces extending between therebetween. An opening is formed in the first and second surfaces of the base member, proximate the first end. The opening is adapted to receive an axle of the tool. The base member further includes a slot formed in the first surface and a projection extending in to the slot. The slot is adapted to receive the tang portion of the saw, and a projection is adapted to be received in the aperture to align the saw with the base member. The pivotally coupled clip is movable between a closed position, in which the saw is retained in and secured to the base member, and an open position, in which the saw is removable from the base member.

Abstract: A hand tool having a handle provided with a fastening member for fastening detachably the handle with a blade. The handle is provided with an insertion hole extending along the direction of the longitudinal axis of the handle, and a receiving slot perpendicular to the insertion hole. The insertion hole is intended to receive the fastening end of the blade. The fastening member is located in the receiving slot and composed of a spring, a retaining block and a press block. The blade is detachably fastened with the handle such that the retaining block of the fastening member is removably located in a locating hole of the fastening end of the blade, and that the retaining block can be actuated by the press block to move out of the locating hole of the blade to enable the fastening end of the blade to be pulled out of the insertion hole of the handle.

Abstract: A utility knife handle including a first body, or first shell, adjustably mated to a second body, or second shell, to form a blade holding portion and a blade storing portion. The first and second bodies have mating beveled surfaces adapted to align the first body with the second body when they are joined. In the preferred embodiment the first body is connected to the second body by a control knob adapted to allow for linear and pivotal adjustment between the first and second bodies. The utility knife handle is adjustable between an open position in which the holding portion and the storing portion allow the removal of any blades therein, an intermediate position in which the holding portion prevents removal of any blades therein and allows for positional adjustment of blades therein and the storing portion prevents the removal of any blades therein, and a closed position in which the holding portion prevents movement of any blades therein and the storing portion prevents the removal of any blades therein.

Abstract: A cutter blade retaining plate having a fitting hole to be used for attachment onto a drive shaft in its center position, in which, on both sides of the fitting hole, a boss portion is provided to which cutter blades having different diameters may be fitted. The various cutter blades, each having a different diameter fitting hole, can be easily attached to the drive shaft by changing the orientation of the cutter blade retaining plate or by pressably sliding the blade onto the boss portion, thereby compressing a moveable boss portion. The invention thus eliminates the need for use of differing collars with cutter blades having differing diameter fitting holes, thereby also reducing the incidence of loss of the collars.

Abstract: A clamp for the blade of a hand held reciprocating tool includes a spindle coupled to the drive mechanism. A slot is formed in the spindle for receiving the blade tang and a collar is threadably received on the spindle. A blade clamping member is disposed between the collar and the blade and includes an engaging member for engaging a hole in the blade tang and a pair of ears which engage the upper and lower shoulders of the blade tang to provide three points of engagement when the collar is tightened. The clamp also includes a nose section which engages the blade at its junction with the tang to provide reinforcement against breakage.

Abstract: A blade removal device includes positionable hand protecting members which are movable to a position relative to a base portion for preventing injury to an operator during use of the blade removal device. A blade removal mechanism is configured in the blade removal device and is accessible through positioning of the hand protecting members. The blade removal mechanism defines a plurality of blade removal chambers disposed in communication with a blade receptacle area. Each chamber defines a blade disengaging mechanism configured to remove a blade from a surgical knife handle by inserting the blade and attached handle into the chamber and withdrawing the handle from the chamber with the blade being retained in the chamber. The blade removal device is operable for removing blades while mated with a storage section or separate from the storage section.

Abstract: A utility knife system comprises a handle assembly, a blade assembly, and a protective blade cover. The handle assembly and the blade assembly have complementary latching mechanisms for easy exchange of blades without opening the handle. The protective blade cover functions cooperatively with the handle assembly and blade assembly to ensure that a user does not touch the cutting edges of blades while exchanging them.

Abstract: A wrenchless collet for attaching a surgical saw blade to an oscillating handpiece. The collet is provided within a housing attached to the handpiece and contains a clamping means for holding the blade and a bi-stable operating mechanism capable of holding the clamping means in either an open position to receive the blade or in a closed position to hold the blade for use with the handpiece. The bi-stable operating mechanism is activated into either position by simply being pushed in one direction or another. In one embodiment, the bi-stable operating mechanism comprises a shaft which may be positioned to one axial extreme or the other and which is held in the chosen position by a spring which frictionally engages the collet housing to maintain the clamping means in either an open or closed position.

Abstract: A saw blade has two portions that are adjustable relative to one another in order to vary the overall length of the saw blade. A hub portion includes a hub adapted to engage a saw. Opposite the hub is an engagement end. A blade portion carries cutting teeth. Opposite the teeth is an engagement end. The engagement end of the blade portion engages the engagement end of the hub portion. The engagement ends carry a releasable lock to hold them in engagement to form a saw blade of a particular length. To change the saw blade length, the lock is released, the engagement ends moved relative to one another, and the lock reengaged. A locking sleeve can be slid to enclose the engagement portions to more securely hold them in engagement.

Abstract: A wrenchless collet for attaching a surgical saw blade to an oscillating handpiece. The collet is provided within a housing attached to the handpiece and contains a clamping means for holding the blade and a bi-stable operating mechanism capable of holding the clamping means in either an open position to receive the blade or in a closed position to hold the blade for use with the handpiece. The bi-stable operating mechanism is activated into either position by simply being pushed in one direction or another. In one embodiment, the bi-stable operating mechanism comprises a shaft which may be positioned to one axial extreme or the other and which is held in the chosen position by a spring which frictionally engages the collet housing to maintain the clamping means in either an open or closed position.

Abstract: A surgical blade package includes a molded piece and a surgical blade mechanically restrained thereon, forming a subassembly, and this subassembly is received within a pouch. The pouch includes a base opaque paper and an upper transparent plastic "blister" sealed together. The method of manufacturing the surgical blade package includes the steps of providing a molded piece and a surgical blade, attaching the surgical blade onto the molded piece, such that the surgical blade is restrained mechanically, providing a pouch or other container receiving the molded piece and the surgical blade attached thereto, sealing the container, and sterilizing the container with the surgical blade and molded piece therein.

Abstract: A saw includes a slot formed in one end of a handle. A saw blade is engaged in the slot and rotatably secured to the handle at a rod. The rod includes a projection of smaller size. The saw blade includes a groove of smaller size for engaging with the projection and includes an aperture for engaging with the rod so as to prevent the rod from disengaging from the saw blade when the rod is engaged in the aperture of the saw blade. The saw blade includes a number of notches for engaging with a latch so as to be adjusted to different angular position relative to the handle.

Abstract: A powered medical handpiece including an oscillatingly driveable chuck, and a blade fixable on the chuck and oscillating driveable thereby at a small amplitude for cutting. The chuck comprises a platform, a holddown screw having an enlarged head surrounded by a frictionally engaged cup washer and a shank structure threaded down into a central portion of the platform. A set screw limits the extent of unthreading of the screw from the platform. The blade is plate-like and has a forward cutting portion and a rearward mounting portion. The rearward mounting portion comprises a key hole having locking structure at the small diameter end thereof for resisting unthreading of the screw from a tightened position clamping the blade atop the platform. The blade further has drive openings flanking the narrow portion of the key hole for receiving upstanding drive pins and guide pins fixed on the platform.

Abstract: A scalpel blade removal apparatus for use with common surgical handle having a slotted tang and a disposable or changeable blade. The apparatus includes a receptacle for holding a multiple blades that have been disposed of. A cam arrangement is operated by the tang as the surgeon pushes the handle into the receptacle. The upper end of the cam rotates, disengaging the proximal end of the blade from the tang and simultaneously forming a connection between the proximal end of the blade and a shoulder that defines a catch. When the cam rotates fully to its lower most position, the blade is fully disengaged. The surgeon then removes the handle by pulling the handle along the same path used to insert the handle and blade. The catch then retains the blade so that only the handle and its tang are withdrawn.

Abstract: A method and apparatus for use as a wenchless and adapterless collet system for attaching an elongated surgical cutting blade to an oscillating surgical saw. The system comprises a collet adapted to mate with a particularly shaped blade hub. The collet has a transverse clamping head attached to a longitudinally slidable, axially aligned shaft which is adapted to slide axially along the axis of the handpiece. The handpiece has an annular anchor sleeve having an annular groove proximally adjacent to the collet clamping head. The hub at the proximal end of the blade is provided with a radially inwardly extending locking flange adapted to engage the clamping head and a radially inwardly extending anchor flange adapted to engage the annular groove in the anchor sleeve. The longitudinal spacing between the hub flanges enables the hub to be received adjacent the anchor groove in an interdigitating mating of complementarily shaped surfaces.

Abstract: Cutting pliers for plastic material sections, rubber-like joints and similar, including two levers (6, 7) articulated to each other on an axis (8) and kept spread apart by a spring (9), characterized in that one of the levers (6) supports an anvil (11) while the other lever (7) is provided with a blade-carrier (16) on which a blade is fixed in a removable manner.

Abstract: This disclosure concerns a tool fixing mechanism including a hollow grip and a resilient clip body. The grip has a front end and a rear end. The front end is formed with a slot, while the rear end is formed with a cross-shaped socket. Two windows are respectively formed on the top and bottom walls of the rear end of the grip. The resilient clip body is located in the cross-shaped socket of the grip. The resilient clip body is formed with two lugs extending out of the windows of the grip. Therefore, if a user depresses the lugs, the resilient clip body is closed or stretched open so as to fixedly latch or release a tool inserted in the slot of the front end of the grip.

Abstract: A reinforced pneumatic tool holder includes: a handle having a sliding sleeve secured in a front portion of the handle, and a tool clamping device generally formed with an elastomer block for clamping a pneumatic tool such as a saw blade or a file on the tool clamping device reciprocatively held in the sliding sleeve of the handle for manipulating the pneumatic tool, with a reinforcing member integrally formed in an elastomer block for reinforcing the tool clamping device for firmly fixing the tool and a piston rod in the elastomer block for absorbing shock, preventing loosening and for sustaining a great working pressure of the tool, and also for preventing injury to a worker when operating the tool.

Abstract: 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 cutting blade carrier for longitudinal movement relative to the handle portion. A cutter blade carried in the blade carrier is moveable between a storage position entirely within the handle portion and successively further forward use and replacement positions. Also received into the handle portion is a spare blade holder member pivotal between a blade retaining position entirely within the handle portion and a blade releasing position in which a forward part of the spare blade holder member is pivoted out of the handle portion to present spare blades for removal and transfer to the cutting blade carrier.

Abstract: A mini plane has a bar-like handle capable of being held in a hand like a pencil, a cutting blade holder fixed on the bar-like handle at a forward end thereof, and a cutting blade detachably attached to the cutting blade holder. The cutting blade has a flat seating face, a front face opposite the seating face, a slant blade face which is slanted at a lateral end portion of the front face, a positioning side face perpendicular to a cutting edge of the slant blade face, and a through hole which extends between the seating face and the front face for receiving a fixing screw. The cutting blade holder has a mounting face to which the seating face of the cutting blade is attached, a positioning reference side face with which the positioning side face of the cutting blade is contacted, and a fixing tapped hole provided in the mounting face with which a tip portion of the fixing screw passing through the through hole is screw-engaged.

Abstract: A carpet knife for creasing carpet at the juncture of the floor and the wall, and for cutting carpet along the crease, includes a split body having first and second mating body sections which when in assembled relation include a forward end portion which is capable of receiving and securing thereto a blade to cut carpet, a handle portion which is grasped in the user's hand, and a rearward end portion which is tapered to a pointed end. The rearward end portion is designed to crease the carpet at the juncture of the floor and the wall.

Abstract: The combination of an extension to the shaft of a sabre saw that moves the blade forward of the gear box housing and a guide plate with plates on the end that will abut a transverse plane and channels that will allow the saw to slide forward on the guide plate against a spring bias to cut to the intersection of two planes.

Abstract: A blade package assembly assures that a blade may be mounted on a surgical scalpel easily, conveniently and safely during a surgical procedure in an operating room. The assembly includes a base and a pivoted cover. The base supports a blade, and the cover at least partially encloses the blade. A pin on the base is received in a hole in the blade, and a ledge on the base supports the rear end portion of the blade. The scalpel has a forwardly-extending cleat received in a slot on the blade, and the scalpel with the blade mounted thereon may be lifted up and away to clear the package.

Abstract: A scalpel with a blade set at about thirty degrees to the handle has a blade shield that pivots up from the handle and a shield lock that prevents accidental lifting of the shield. The shield lock includes a small movable shaft just below the sidewalls of the shield next to the handle. A small disc is at each end of the shaft close to the handle and prevents the shield from being pivoted up. A counterbore around the shaft on one side of the handle enables the adjacent disc to be pushed in, thus extending the opposite disc permitting the shield to be pivoted up to unshield the blade.

Abstract: A device for dispensing a bandage material has a container for accommodating a supply of bandage material, a mechanism for advancing the bandage material from the container so as to expose a desired portion of the bandage material outside of the container, a mechanism for cutting the exposed piece of the bandage material, and including a cutting element movable between an initial position before cutting the piece of the bandage material and a final position after the piece of the bandage material has been cut off during which movement from the initial position to the final position the piece of the bandage material is being cut, and a structure for preventing advancement of the bandage material by the advancing mechanism when the cutting element is in the final position.

Abstract: A three-piece knife having a replacable, retractable cutting blade, which may be locked either in the operating or deployed position, or in a retracted or safety position, by using a single digit on one hand, is described. Safety of hospital personnel and medical waste-disposal personnel is achieved in the surgical scalpel embodiment of the three-piece knife without loss of function or convenience of the scalpel.

Abstract: A powered medical handpiece including an oscillatingly driveable chuck, and a blade fixable on the chuck and oscillating driveable thereby at a small amplitude for cutting. The chuck comprises a platform, a holddown screw having an enlarged head surrounded by a frictionally engaged cup washer and a shank structure threaded down into a central portion of the platform. A set screw limits the extent of unthreading of the screw from the platform. The blade is plate-like and has a forward cutting portion and a rearward mounting portion. The rearward mounting portion comprises a key hole having locking structure at the small diameter end thereof for resisting unthreading of the screw from a tightened position clamping the blade atop the platform. The blade further has drive openings flanking the narrow portion of the key hole for receiving upstanding drive pins and guide pins fixed on the platform.

Abstract: A keyless saw blade chuck has a generally cylindrical collar receiving the blade attachment end of a tool shaft, a clamping member and a mounting portion of a saw blade. The clamping member is located within the collar and urges a received saw blade against the tool shaft. A bore extends transversely through the collar and supports a slideable lock pin for holding the collar and the saw blade on the tool shaft.

Abstract: A flexible material wall trimming tool (10) cuts flexible material (32) such as flexible flooring material and flexible wall cove material at the intersection of a floor (34) and a wall (35). An elongate low profile block body (12) is formed with a bevel angle pusher surface (15) at the back end (14) of the block body (12) for pushing the wall trimming tool in the elongate cutting direction (18) using the palm of a hand. The bevel angle pusher surface (15) delivers force components downward against the floor (34) and sideways against the wall (35) for accurate cutting. A blade slot (20) is formed on the cutting side (28) of the block body (12) near the back end (14). The blade slot (20) is also formed at a compound angle. A blade holder (24) rigidly clamps a blade (22) in the blade slot (20) at the compound angle. A tool angle trim adjuster (42) is slidably received in a tool angle trim slot (40) on the opposite side (38) of the block body (12) from the cutting side (28).

Abstract: A blade with cutting part on one edge portion thereof has a remote end fixed in a chuck by pushing same end-wise into a slot in the chuck through a series of positions, namely (1) drop-out, (2) safety locked-in and (3) fully inserted locked-in.

Abstract: A scraper particularly suited for use in removing wallcovering comprises a scraper body having a handle extending upwardly from the top generally centrally thereof and guide and support legs extending outwardly from the rearward end. A scraper blade is operatively mounted on the bottom of the body to extend outwardly beyond the forward end of the body. The blade has a relatively flat rectangular configuration with a pair of elongated opposite sides constituting scraping edges. A retainer is provided for releasably retaining the scraper blade to position one of these scraping edges in operative position. The retainer includes a thin rigid plate for underlying the blade while leaving the selected scraping edge exposed. A pair of resilient latch arms extend upwardly from the plate through openings in the body. Each latch arm includes a latch element engaging a cooperating latch portion in the body.

Abstract: A blade scraper including a housing having a top cover case and a bottom containing case, a resilient trigger assembly generally disposing in the housing and a finger-actuating portion of the trigger assembly projecting from the housing through an elongated slot on the top cover case, and a scraping blade secured at a front end of the trigger assembly. The trigger assembly includes projections biasedly inserted into slots on the top cover case of the housing. The blade scraper is operated among a blade loading position, a blade scraping position and a blade storing position.

Abstract: A blade package assembly assures that a blade may be mounted on a surgical scalpel easily, conveniently and safely during a surgical procedure in an operating room. The assembly includes a base and a pivoted cover. The base supports a blade, and the cover at least partially encloses the blade. A pin on the base is received in a hole in the blade, and a ledge on the base supports the rear end portion of the blade. The scalpel has a forwardly-extending cleat received in a slot on the blade, and the scalpel with the blade mounted thereon may be lifted up and away to clear the package.