Blade Connections Patents (Class 30/342)
-
Patent number: 4329781Abstract: Disclosed is a shaving apparatus having a shear plate provided with hair-entry apertures and a cutting member drivable relative to the shear plate. The cutting member is formed with cutters each having an associated lead cutter slidingly engaging the guide wall of its respective cutter. The end of each lead cutter has a projection terminating in a cutting edge for penetration into a hair, the thickness of such projection permitting only partial penetration of the lead cutter into the hair. Such penetration is advantageously further limited by forming the front wall of the lead cutter perpendicular to the end wall of its associated cutter.Type: GrantFiled: November 29, 1979Date of Patent: May 18, 1982Assignee: U.S. Philips CorporationInventors: Hugo Schemmann, Gerhard Diefenbach
-
Patent number: 4310968Abstract: There is provided a shaving apparatus including a holder formed with a planar surface having at least two circular apertures. A circular shear plate having hair-entrance apertures is positioned in each circular aperture, and a cutting unit is rotatably associated with each shear plate. A mat covering the planar surface has circular openings respectively corresponding to the circular apertures. The mat is formed from a strip material provided with bristles, which extend outwardly with respect to the planar surface and the outer ends of which are hook-shaped for straightening hairs prior to their engagement by the hair-entrance apertures.Type: GrantFiled: April 18, 1980Date of Patent: January 19, 1982Assignee: U.S. Philips CorporationInventors: Dirk A. Buik, Eduard W. Tietjens
-
Patent number: 4275497Abstract: There is provided a shaving apparatus comprising a shear plate having hair entry apertures and a cutting unit associated with and drivable relative to the shear plate. The cutting unit comprises a cutting member having cutters extending toward the shear plate and respectively associated lead cutters movable relative to the cutters away from and toward the shear plate. The arrangement is such that each lead cutter is always maintained spaced from its associated cutter throughout their respective lengths regardless of their relative position.Type: GrantFiled: September 4, 1979Date of Patent: June 30, 1981Assignee: U.S. Philips CorporationInventors: Manfred Engelhardt, Jan Reinink, Jochem J. De Vries, Ferdinand M. Trees, Eduard W. Tietjens, Gerrit J. Groothuis
-
Patent number: 4272332Abstract: A method for making table knives is disclosed wherein the blade including its foot portion and shank is made electrically insulated from the handle and subsequently the blade foot portion is ground flush prior to the handle being silver-plated.Type: GrantFiled: July 6, 1979Date of Patent: June 9, 1981Assignee: Wurttembergische MetallwarenfabrikInventor: Werner Probost
-
Patent number: 4258470Abstract: A shaving apparatus has a circular shear plate provided with hair-entrance apertures and a cutting unit associated with and rotatable relative to the shear plate. The cutting unit comprises a cutting member having a circular central body and a hair-pulling member having a circular central portion. Cutters extend from the central body circumference toward the shear plate, with each cutter having a guide wall. A lead cutter is associated with and movable along the guide wall of each cutter, the lead cutter being connected to the central portion circumference by a V-shaped elastically deformable arm. One link of the connecting arm is secured to the central portion and extends tangentially therefrom; and the other limb is connected to the lead cutter. Each connecting arm is elastically deformed so as to urge its lead cutter against the guide wall of the associated cutter.Type: GrantFiled: September 28, 1978Date of Patent: March 31, 1981Assignee: U.S. Philips CorporationInventors: Ebbe Boiten, Jochem J. de Vries
-
Patent number: 4250617Abstract: There is provided a shaving apparatus having a holder for at least two and preferably three cutting units arranged in a triangular pattern therein. A raised portion extends over that area of the holder situated centrally with respect to the cutting units, such portion being raised with respect to the periphery of the holder. Desirably such raised portion of the holder gradually slopes downwardly towards the periphery of the holder. An adjustable skin-tautening device is mounted at the periphery of the holder.Type: GrantFiled: December 13, 1978Date of Patent: February 17, 1981Assignee: U.S. Philips CorporationInventors: Eppe Bakker, Pieter Riemersma
-
Patent number: 4233737Abstract: A hand knife has a removable blade. Side plates are spaced apart on opposite sides of a main frame having a rectangular socket in one end thereof. One side plate has a non-circular aperture therein and the other side plate has a circular opening therein. A pin is movable on a transverse axis relative to the main frame and has a non-circular portion in the aperture and a circular portion in the opening. A blade has an exteriorly rectangular end slidable in a predetermined direction to fit the socket. The end interiorly has a keyhole opening, the circular portion of which fits the larger, circular part of the pin and the rectangular portion of which is open ended in the predetermined direction and fits the smaller, non-circular portion of the pin. A spring normally urges the circular portions into interengagement. A button on the pin, when pressed, overcomes the spring and moves the non-circular portion into sliding engagement with the rectangular portion of the keyhole opening.Type: GrantFiled: April 13, 1979Date of Patent: November 18, 1980Inventor: Paul W. Poehlmann
-
Patent number: 4227306Abstract: The disclosure is directed to a utility knife which is suitable for mounting at least two different types of blades and which has an improved safety feature. The knife of the invention has an elongated handle, and means for mounting a blade of one type at an end of the handle. In accordance with an important feature of the invention, the mounting means includes means for preventing the mounting of a blade at a given end of the handle when a blade is already mounted at the opposing end of the handle. In particular, in an embodiment of the invention the handle includes a pair of elongated mateable handle elements which conform generally in shape. A pair of blade-engaging units, each of which may be, for example, a suitably sized key or nub, are respectively disposed near the opposing ends of one of the handle elements. A blade-securing pad is disposed near one (only) end of the other handle element.Type: GrantFiled: December 7, 1978Date of Patent: October 14, 1980Assignee: CBS Inc.Inventor: Avram Meshulam
-
Patent number: 4189832Abstract: A shaving implement for raising and holding low-lying hairs in an erect position for cutting by a blade edge and for distributing shaving force which includes resilient hair raising means spring mounted on a flange having a skin contacting surface or guard member adapted to distribute shaving force to substantially prevent stretching of a user's skin. The resilient hair raising means have barbed ends projecting beyond and substantially normal to the skin contacting surface of the flange in close proximity to the blade edge.Type: GrantFiled: June 19, 1978Date of Patent: February 26, 1980Assignee: The Gillette CompanyInventors: Allan C. Harper, Edmund M. Buras, Jr.
-
Patent number: 4148139Abstract: A hand razor assembly consisting of a plastic frame having a downwardly projecting handle with a razor guide adapted to roll the hair stubs into engagement with the blade cutting edge in a manner that will produce a closer cutting shave.The razor blade is positioned within the frame in such a manner so that it extends generally parallel to the skin surface in a substantially conventional manner. The guide is a projection extending generally parallel to the cutting edge of the blade, sharply pointed and positioned in a plane perpendicular to the plane of the blade. The pointed edge of the guide projects above the plane of the blade and is spaced sufficiently from the blade so that it rolls the skin and the projecting hair follicles into engagement with the cutting edge of the blade in a manner substantially similar to a double bladed razor.Type: GrantFiled: May 24, 1976Date of Patent: April 10, 1979Inventor: Dillis V. Allen
-
Patent number: 4102044Abstract: A hair trapping member for use in electric shavers is disclosed. The member is designed to be mounted on a shaver blade of the type having a recessed central trough-like channel and a plurality of laterally extending, closely spaced cutter bars on each side. The bars, lengthwise of the blade, are separated by laterally extending slots which open both through the sides of the blade and into the central channel. The hair trapping member has an elongated channel-like body element sized to seat in the central channel of the blade. A plurality of laterally projecting tongues extend from each side of the body element, one of the tongues being adapted to be received in each of the slots for trapping and holding hairs entering the slots.Type: GrantFiled: March 16, 1977Date of Patent: July 25, 1978Inventor: James E. Rookus
-
Patent number: 4044463Abstract: A shaving apparatus comprises a holder having at least one cutting element, particularly intended for so-called wet-shaving, and a hair-pulling member including a blade shaped portion movable between the inside and the outside of the holder.Type: GrantFiled: May 10, 1976Date of Patent: August 30, 1977Assignee: U.S. Philips CorporationInventor: Eduard Willem Tietjens
-
Patent number: 4038747Abstract: An electric razor is disclosed herein having a case housing an electric motor and a gear driving train operably coupled to a moving cutting head. The head includes at least one cutting blade driven by the motor either in a back and forth stroking manner or in a rotary motion. The cutting head is movably carried on the case by an oscillating plate driven by the gear train so that the entire cutting head including the cutting blade or blades moves while the cutting blade or blades are driven in their stroking or rotary movement. Tension rollers are provided about the periphery of the oscillating plate engageable with the skin of the user for stretching the skin to expose more of the hair shaft preparatory for cutting.Type: GrantFiled: November 19, 1975Date of Patent: August 2, 1977Inventor: Douglas J. Upton
-
Patent number: 4003130Abstract: A panel-like member is provided for an electric shaver which seats against the inside surfaces of the shaver screen which panel has a top surface positioned at or just below the upper shearing plane of the blade. The top surface of the panel positions the hairs as they enter the screen and blade such that they will be sheared by the blade.Type: GrantFiled: December 24, 1975Date of Patent: January 18, 1977Inventor: James E. Rookus
-
Patent number: 3992775Abstract: An electric shaver with shear plates supported by a shear plate frame which is surrounded by a skin-tightening ring for adjusting the height of the shear plates. A flexible strip is movable in a direction transverse to said height adjustment, and cams on the strip drive the frame accordingly.Type: GrantFiled: January 20, 1975Date of Patent: November 23, 1976Assignee: U.S. Philips CorporationInventor: Jochem Jacobus De Vries
-
Patent number: 3983626Abstract: An electric shaver for shaving the legs and underarms of women wherein separate head assemblies are provided for leg shaving and for underarm shaving, the head assembly for leg shaving having a pair of spaced parallel heads, the combs of which are relatively thin for close shaving. The underarm head assembly having a single shaving head provided with a comb which is relatively thick to prevent irritation during underarm shaving and having adjacent thereto an elongated guard which is similar in overall dimensions to one of the shaving heads but has a plurality of spaced ribs which engage the skin and smooth it out in advance of the shaving operation.Type: GrantFiled: January 14, 1974Date of Patent: October 5, 1976Assignee: Sunbeam CorporationInventor: Lionel R. Jensen
-
Patent number: 3974868Abstract: A hand tool including a blade or tool part with a connected tang and a handle part with an aperture extending axially from one end for receiving the tang, a locking pin extending diametrically across the handle part and the tang being provided with a slot for the passage of said locking pin to a cross bore in the tang, the locking pin being rotatable or axially movable to engage it with said cross bore.Type: GrantFiled: August 28, 1975Date of Patent: August 17, 1976Assignee: The Jacobs Manufacturing Company LimitedInventor: George Cecil Derbyshire
-
Patent number: 3964163Abstract: A surgical saw blade fastening means comprising a saw blade and chuck wich provides for positive locking of the blade while permitting rapid removal of the saw blade without the use of additional tools is disclosed. The chuck which is provided with an adapter portion so it can be attached to surgical instruments presently in use comprises a slotted body portion having a pyramid locator at the base of the slots into which the notched end of a saw blade is seated by the action of a knurled internally threaded collar carried on said chuck body in cooperation with the teeth of the saw blade.Type: GrantFiled: September 4, 1975Date of Patent: June 22, 1976Assignee: Minnesota Mining and Manufacturing CompanyInventor: Anthony Russo
-
Patent number: 3961419Abstract: An inexpensive suture cutter is shown in which the cutting portion is a sharpened edge of a wire-like member one-eighth inch or less in diameter at the cutting portion. This wire-like cutting portion has a blunt end to prevent accidental penetration of the skin as the knife portion of the cutter is slid under the sutures which are then cut as the cutting edge is slid along and underneath the sutures. Prior to cutting a length of adhesive tape is placed on and secured to the sutures to be cut and removed. The edge of the tape is placed adjacent or over the proposed cutting path. The sutures are removed by and when the tape is lifted from the skin after the sutures have been severed by the cutter.Type: GrantFiled: June 30, 1975Date of Patent: June 8, 1976Inventor: Boris Schwartz
-
Patent number: 3945115Abstract: An electric dry shaver having skin engaging bar assemblies arranged at opposite sides of the cutter head assembly for tensioning or flattening the skin in advance of the cutter head. Means are provided for mounting the bar assemblies for movement transverse of the longitudinal axis of the cutter head to selected positions relative to the hair reception slots with control and actuator means spaced from the cutter head and operable from without the casing for effecting simultaneous movement of the bar assemblies.Type: GrantFiled: June 14, 1974Date of Patent: March 23, 1976Assignee: Sperry Rand CorporationInventors: John F. Daniels, Maurice A. Melito, Jr., Edward Szymansky
-
Patent number: 3940851Abstract: A panel like member is provided for an electric shaver which seats against the side of the shaver screen which panel has a straight top in or just below the shearing plane of the blade for positioning the hairs as they enter the screen such that they will be sheared by the blade.Type: GrantFiled: June 12, 1974Date of Patent: March 2, 1976Inventor: James E. Rookus
-
Patent number: 3939560Abstract: The invention provides shaving equipment having a guard surface which bears against the skin of the user during shaving, wherein a part at least of said surface is roughened.Type: GrantFiled: January 30, 1974Date of Patent: February 24, 1976Assignee: Wilkinson Sword Ltd.Inventor: Robert Lyall