| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Case knife with multiple position blade guards | US10301408 | 2002-11-21 | US07024772B1 | 2006-04-11 | Billy J. Shaver; Randy R. Busby; James S. Carter |
| A case knife (1, 101), generally consists of a pair of substantially symmetrical handle shells (13, 112). A single edge razor blade B is removably supported in one end of the handle formed by these handle shells. Each handle shell includes two moving parts—a guard (10, 110) and a thumb or finger operable button (5, 105). Each such guard, when paired with a substantially identical guard of the other handle half shell, flanks the otherwise protruding sharp edge of the razor blade. Each guard can move independently to expose a protruding corner of the razor blade. The operable button is mounted on an axle or lug (14, 103) that passes from the inside of a handle shell, through to its outside surface. This axle is in turn fixed to a cam follower (20, 120) mounted on the inside of each shell. | ||||||
| 142 | Package opening device | US10941148 | 2004-09-15 | US20060053637A1 | 2006-03-16 | Gabe Neiser |
| A package opening device having a movable member hingedly connected to a base. At such point of connection, the movable member separates a cutting area from a grip area on the base. A cutting element is provided on a top face of the cutting area of the base and is preferably comprised of a ceramic material for facilitating cutting of e.g., shrink-wrapped packaging. The movable member is pivotable with respect to the base, wherein in an open position the movable member is pivoted to expose the cutting area, and thus the cutting element. In a closed position, the movable member may be folded flat against the base to cover the cutting element, the movable member including a relief to accomodate the cutting element when closed. The grip area is provided to facilitate handling of the package opening device during use. | ||||||
| 143 | Cardboard box unpacking device | US10359645 | 2003-02-07 | US06892456B2 | 2005-05-17 | Hsiu-Man Yu Chen |
| A cardboard box unpacking device has a blade positioned in a slanting blade groove fo a main body and a covering body for cutting off plastic packaging strap tensioned on a cardboard box, a staple removing device provided at the upper rear side of the main body for removing staples from the cardboard box and a telescopic blade device disposed at the lower portion of the covering body for culling off adhesive tape adhered to the cardboard box. | ||||||
| 144 | Cutting tool | US10453330 | 2003-06-03 | US20040244206A1 | 2004-12-09 | Thomas Perlmutter; Robert L. Lewis |
| A cutting tool includes a housing having a first end with a first edge and a second end. A handle extends from the second end of the housing. The housing has a slideable blade with a cutting position and a retracted position inside the housing. A finger portion is cantilevered from the first end of the housing. The finger portion and the first edge define an elongated opening having a juncture end at the first end of the housing. A cutting edge is embedded at the juncture end. The cutting edge is shaped, sized and orientated to facilitate forward slitting of heavy plastic sheet. The slideable blade slides axially along a track. A biasing means repositions the slideable blade from the cutting position to the retracted position. | ||||||
| 145 | Safety utility razor knife | US09880414 | 2001-06-13 | US06578266B2 | 2003-06-17 | Bryant D. Chomiak |
| A safety utility razor knife is normally maintained in a locked closed condition which protects the user or carrier from accidental injury by the blade. No action on the part of the user or carrier is required to lock the protective hood over the blade. The hood pivots into the open position, exposing the razor blade, when the knife is in use, and automatically self-locks the safety hood immediately after use, requiring no action or adjustment on the part of the user. The knife is designed for easy and convenient use in cutting cartons, and other materials, including but not limited to dry wall, floor coverings, and insulation, etc. The hood is unlocked by the user's thumb by moving a slide forward. The amount of blade exposed may be determined by a hood stop on the shoulder of the knife, or as regulated by the depth of cut cam action dial. This insures that only enough blade is exposed for the task at hand, i.e. when cutting a carton containing cereal boxes, only enough blade to cut the carton without damage to the cereal boxes is exposed. In addition, provisions may be made to control the depth of cut which is made by the safety utility razor knife. | ||||||
| 146 | Package unpacking hand tool | US10120396 | 2002-04-12 | US20020194734A1 | 2002-12-26 | Harrison Huang |
| A package unpacking hand tool includes a grip, a shaft axially slidably inserted through the grip, the shaft having an oblique top peak for hooking the packing plastic film of a package, and an oblique notch at the bottom side of the peak, a cutter blade supported on a spring inside the shaft and moved with the grip up and down across the oblique notch relative to the shaft to cut open the packing plastic film, a lever pivoted to the shaft, the lever having a protruded cutting portion for cutting adhesive tape, and an actuating member adapted to turn the lever in and out of the shaft between the operative position and the non-operative position. | ||||||
| 147 | Safety utility razor knife | US09880414 | 2001-06-13 | US20020069536A1 | 2002-06-13 | Bryant D. Chomiak |
| A safety utility razor knife is normally maintained in a locked closed condition which protects the user or carrier from accidental injury by the blade. No action on the part of the user or carrier is required to lock the protective hood over the blade. The hood pivots into the open position, exposing the razor blade, when the knife is in use, and automatically self-locks the safety hood immediately after use, requiring no action or adjustment on the part of the user. The knife is designed for easy and convenient use in cutting cartons, and other materials, including but not limited to dry wall, floor coverings, and insulation, etc. The hood is unlocked by the user's thumb by moving a slide forward. The amount of blade exposed may be determined by a hood stop on the shoulder of the knife, or as regulated by the depth of cut cam action dial. This insures that only enough blade is exposed for the task at hand, i.e. when cutting a carton containing cereal boxes, only enough blade to cut the carton without damage to the cereal boxes is exposed. In addition, provisions may be made to control the depth of cut which is made by the safety utility razor knife. | ||||||
| 148 | Carton knife | US969294 | 1997-11-13 | US6035534A | 2000-03-14 | John P. Abbott |
| A carton knife for opening a carton includes a body member and a blade supported by the body member. The blade has a cutting surface and a cutting edge disposed thereon, the cutting surface and the cutting edge being adapted for cutting movement through the carton during operative engagement of the knife with the carton. A guide is disposed on the body member and is adapted to engage and slide along an edge of the carton to maintain the knife at a predetermined orientation relative the carton during the operative engagement, in which the cutting surface is disposed at an oblique angle relative the edge of the carton. The oblique angle serves to maintain a leading portion of the cutting edge closer than a trailing portion to the edge of the carton. Advantageously, during cutting, the blade is biased towards the edge of the carton and thus away from product inside the carton. Moreover, the orientation of the blade generates a force vector towards the edge during cutting for improved tactile sensitivity. | ||||||
| 149 | Carton cutting device having a pivotal guard member | US802863 | 1997-02-19 | US5852874A | 1998-12-29 | Henry F. Walker |
| A carton cuing device includes housing and a guard member extending about the exterior of and pivotally attached to the housing. The housing includes a handle portion, neck portion, and hook portion which together define a cutting area therebetween and a channel therein for receiving and supporting a blade partially disposed in the cutting area. A frictionally slidable stop member is displaceable within the channel of the handle portion for abutting engagement with a blade received in the channel for supporting the blade from sliding within the channel. A spring is disposed between the guard member and the housing and urges the guard member into a first position in abutment with the hook portion for closing the cutting area to cutting. The guard member is displaceable by a carton to be cut to a second position in abutment with the handle portion for opening of the cutting area to cutting, and to all positions between the first and second positions for at least partial opening of the cutting area to cutting. During cutting, the spring continually urges the guard member into contact with the carton being cut, and relative movement of the carton through the cutting area causes the carton to engage the guard member so that the guard member is kept out of the first position. When the cutting device is withdrawn from the carton, the guard member is automatically displaced to the first position by the spring to shield against accidental cutting. | ||||||
| 150 | Carton opener | US110567 | 1993-08-23 | US5740610A | 1998-04-21 | Kylle R. Ayer; Tom Zamecnir; Lloyd Ayer; Attila Bodnar |
| An apparatus includes a body member which has a pair of guide surfaces. A blade projects from a first of the guide surfaces and the cutting edge of the blade forms an acute angle with the first guide surface. The plane of the blade forms an acute angle with the second guide surface thereby facilitating a clean cutting action. The angle of the plane of the blade effectively maintains contact between the guide surfaces and the carton being opened and minimizes any tendency for the carton opener to leave the cut. The body member includes a curved portion forward of the blade and a projecting wall portion which serve to position the hand of the user in the correct ergonomic position for safe and efficient operation. | ||||||
| 151 | Safety stock carton knife | US291450 | 1994-08-17 | US5412871A | 1995-05-09 | Thomas P. Reyburn; Frederick S. Reyburn |
| A stock carton knife comprising an elongated handle having a pair of ends, a blade projecting from one end of the handle and having two lateral edges and an outer end, a lateral cutting notch in one of the lateral edges having a sharpened cutting edge and a laterally oriented mouth and including an inner sharp edge closer to the handle and an outer sharp edge farther away from the handle, the outer edge converging with the blade end to form a juncture with a blunt knob, the mouth being smaller in width than about one centimeter, and a diagonal guard plate on the blade along the inner edge, normal to and astraddle of the blade, with a first surface area toward the handle to protect the fingers of a user, and a second surface area toward the notch to limit depth of cut by the blade into a carton. | ||||||
| 152 | Wrap cutter | US964000 | 1992-10-21 | US5333381A | 1994-08-02 | Paul J. Gelardi; David A. Capotosto; James R. Dussault; Christopher C. Capotostop |
| A cutter for removing overwraps or tape on products and product packages incorporates first and second wings extending angularly from a body. A cutting point extends a short distance into the angle between the wings, wherein the wings embrace an edge of a product and the blade slices the wrapper along the edge as the user slides the cutter along the edge. The wings are flexible to conform to the angle of the edge, and are integrally molded with the body. Living hinges provided between the wings and the body, or the wings are molded angularly with respect to the body. A cutter is molded as a flat blank and folded. A solid article is molded with a pocket for insertion of the blade. The angle between the wings is less than or equal to 90.degree., allowing it to conform to most standard packages. The reduced angle between the wings and the relatively slight exposure of the blade allows for effective cutting of the wrapper without scarring the package or injuring the user. | ||||||
| 153 | Carton opener | US972931 | 1992-11-06 | US5285574A | 1994-02-15 | Dennis P. Feltner |
| A carton opener has a blade holder for receiving and holding a single edged razor blade. A sheath has a body portion including two side walls closely fitted about the blade holder in which the blade holder is capable of sliding within the sheath between a blade retracted position to at least one blade extended position. A slot is formed on one of the side walls longitudinally along the length of the sheath. A moving member is attached to the blade holder and extends from the blade holder through the slot and is in registry with the slot for moving the blade holder longitudinally with respect to the sheath. The moving member includes a detent biased to a side of the slot having recesses for releasably engaging the recesses when the detent is adjacent thereto. | ||||||
| 154 | Utility razor safety knife | US875309 | 1992-04-30 | US5241750A | 1993-09-07 | Bryant D. Chomiak |
| An improved utility razor safety knife is disclosed. The knife hood is normally in the closed position where the blade is protected. The hood may be locked in the closed position by a sliding hood lock. The hood pivots into the open position, exposing the razor blade, when the knife is in use. The hood is stabilized in its movement and biased toward the closed position by a yoke with two legs which is attached to an arm on the handle. Springs on the yoke bias the hood toward the closed position. Springs of varying gauges may be used to vary the closing impulse on the hood. The legs of the yoke exert their influence through footing pieces which are received by socket-bearing footing rests attached to the sides of the hood. The footing rests stabilize the knife in an upright position when the knife is resting on a surface and also stabilize the razor blade during cutting. | ||||||
| 155 | Knife guide | US365170 | 1982-04-05 | US4442595A | 1984-04-17 | Robert F. Sharrow; Sidney L. Sherman |
| A utility knife guide made up of a body formed of sheet material bent to form a holder for the handle of the knife and a guide to control the path of cut of the blade parallel to a side edge of an object being cut. | ||||||
| 156 | Cutting tool | US838315 | 1977-09-30 | US4167810A | 1979-09-18 | Richard Gilbert |
| A cutting tool for sheet material, especially for opening cardboard cartons, has a disposable blade removably fixed to a handle and a guide member of bent wire also fixed to the handle for keeping the blade in cutting engagement with the sheet material and away from the contents of the cartons. A nose of the guide member is rounded to avoid damaging the carton contents and projects ahead of the cutting edge of the blade. One arm of the guide member is above the blade tip so as to keep the blade from disengagement from the sheet material. Another arm of the guide member is below the tip of the blade for preventing cans or other cartons contents from being cut by the blade. A hard point is provided for puncturing cartons which are too tough to be punctured by the rounded nose of the guide member. | ||||||
| 157 | Carton knife | US582230 | 1975-05-30 | US4012836A | 1977-03-22 | Richard I. Baer; Kenneth M. Bellivue |
| A knife for cutting cartons comprises a movable blade carrier, and blade, mounted in a stepped guide for positive blade location at any of a plurality of selected locations, within a handle having an extended area lip feeler adjacent a handle opening such that the blade may be presented through said opening in any of a plurality of lengths corresponding essentially to the thickness or thinness of a carton wall so that the knife cuts the carton and not its contents, consistent with safety for the operator, economy of manufacture and use and compactness. | ||||||
| 158 | Apparatus for cutting thin-walled objects | US3710444D | 1970-12-21 | US3710444A | 1973-01-16 | FISHMAN A |
| There is disclosed an apparatus for the cutting through of thinwalled objects with two cutting wheels mounted within a housing at shafts or axes spaced from one another and wherein such cutting wheels are rotatable independently of one another. The housing possesses an infeed gap or opening at which the cutting edges of both cutting wheels cooperate. According to important aspects of this invention the housing, defining a holder unit for the apparatus, encloses the cutting wheels, there being provided at the housing two guide slots which open at the infeed gap. Both cutting wheels are mounted to be freely rotatable and axially fixed with respect to one another.
|
||||||
| 159 | Carton opening hand tool | US3525152D | 1968-05-14 | US3525152A | 1970-08-25 | FATTORI LAZZARO A; BISCONE FRANK |
| 160 | Cutting device | US53000366 | 1966-02-25 | US3380159A | 1968-04-30 | WINSTON EMANUEL A |
QQ群二维码
意见反馈
意见反馈