Patents Assigned to Wilkinson Sword Gesellschaft mit beschrankter Haftung
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Patent number: 5305526Abstract: To reduce the frictional resistance of a wet razor head, especially a razor blade unit thereof, as well as to provide a sharper blade without the risk of injury, there is provided a combination of a protective wire that covers a blade made of a steel strip having a width of less than 5 mm, a thickness between 0.05 and 0.25 mm, and a chromium/molybdenum steel composition having a hardness of greater than 620 HV and a retained austenite content of less than 32%, with the blade being a single piece that has no perforations or holes and that is mounted in a vibration-free manner in a plastic body. The protective wire comprises loops that are spaced greater than 2 mm but less than 5 mm apart and that have a minimum thickness of greater than 0.1 mm to form a protective guard over the razor blade with the effect of a protective foil.Type: GrantFiled: April 30, 1992Date of Patent: April 26, 1994Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 5275672Abstract: Steel which is particularly useful for making a razor blade of high corrosion resistance contains more than 0.45%, but less than 0.55%, of carbon, 0.4 to 1.0% of silicon, 0.5 to 1.0% of manganese, 12 to 14% of chromium and 1.0 to 1.6% of molybdenum all by weight, in addition to iron and inevitable impurities, and has a carbide density of 100 to 150 particles per 100 square microns as annealed. The razor blade has a Vickers hardness of at least 620 and a carbide density of 10 to 45 particles per 100 square microns, and preferably has a specific distribution of residual austenite content. The improved properties of the razor blade are achieved by an improved process of heat treatment which includes austenitizing the steel at a temperature of 1075.degree. C. to 1120.degree. C., cooling it to a temperature between -60.degree. C. and -80.degree. C. for hardening it, and tempering it at a temperature of 250.degree. C. to 400.degree. C.Type: GrantFiled: March 12, 1991Date of Patent: January 4, 1994Assignees: Wilkinson Sword Gesellschaft mit beschrankter Haftung, Hitachi Metals Ltd.Inventors: Wolfgang Althaus, Atsushi Kumagai
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Patent number: 5265759Abstract: An arrangement for the accommodation and sales display of essentially rectangular articles, preferably razor blade units, of wet razors, packed in dispensers. The arrangement comprises a sales dispensing unit for individually dispensing the articles. The unit comprises a housing having a front side, two side walls, and a bottom. The front side is provided with a withdrawal arrangement in the form of a slot-like opening that is disposed in the vicinity of the bottom of the housing. Each of the side walls is provided in the vicinity of the bottom of the housing with a respective recessed portion that cooperates with the slot-like opening of the front side. The articles are disposed in the housing in at least one row.Type: GrantFiled: June 11, 1992Date of Patent: November 30, 1993Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Dave Coffin
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Patent number: 5253420Abstract: A razor head, especially a razor blade unit of a wet razor, disposed at the front end of a handle. A single or double razor blade is yieldingly mounted in a plastic housing. To improve the spring or yielding mounting of the single or double razor blades, the latter are secured to a blade member that is displaceably mounted in the plastic housing and can be displaced in a direction toward the rear wall of the plastic housing against a spring force.Type: GrantFiled: June 25, 1992Date of Patent: October 19, 1993Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventors: Wolfgang Althaus, Michael Schwarz
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Patent number: 5251756Abstract: A packaging for presenting goods of an essentially parallelepipedal shape, especially dispensers containing razor blade units, has a first cardboard strip with a front surface and a back surface, and a second cardboard strip with a front surface and a back surface whereby the back surface of the second cardboard strip is connected to the front surface of the first cardboard strip. The second cardboard strip has a receptacle for holding at least one dispenser. The second cardboard strip has a first and a second folded portion extending parallel to one another and spaced from one another in a direction transverse to the longitudinal direction of the second cardboard strip. The receptacle is in the form of a first and a second opening, whereby the first opening is provided in the first folded portion and the second opening is provided in the second folded portion. Such a packaging is inexpensive and is producible in a simple manner from recyclable materials.Type: GrantFiled: March 27, 1992Date of Patent: October 12, 1993Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Kenneth Grange
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Patent number: 5251376Abstract: A razor head, especially a razor blade unit of a wet razor, with the razor head being disposed at the front end of a handle. A single or double razor blade is yeildingly mounted in a plastic housing that is provided with a front guide strip. To provide an improved spring or yielding mounting of the single or double razor blades, these blades are secured to a blade member that is pivotably mounted in the plastic housing so as to be pivotable against a spring force about an axis that extends parallel to the guide strip.Type: GrantFiled: June 25, 1992Date of Patent: October 12, 1993Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventors: Wolfgang Althaus, Michael Schwarz
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Patent number: 5228580Abstract: A holder for holding a shaver for wet-shaving and a box-shaped dispenser for razor-blade units is provided. The holder consists of a base portion, a post with a holding arrangement connected to the base portion for suspending the shaver, and a receptacle for the box-shaped dispenser whereby the receptacle is in the form of a slot-shaped recess provided at the base portion.Type: GrantFiled: October 25, 1991Date of Patent: July 20, 1993Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Kenneth Grange
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Patent number: 5214851Abstract: A razor is provided having a handle, at the front end of which a razor blade unit is disposed on a razor head, whereby disposed in a housing of the handle is a motor-driven vibration mechanism that imparts a vibration movement to the razor head together with the razor blade unit. The construction of the vibration mechanism is such that the razor blade unit executes a controlled, directed vibration movement while nearly completely avoiding vibration of the handle.Type: GrantFiled: August 15, 1990Date of Patent: June 1, 1993Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 5161307Abstract: A razor head, and especially a razor blade unit, is disposed at the front end of a handle of a wet razor and includes a plastic body that comprises a front guide strip and a rear cover. A single or double razor blade is disposed in the plastic body. The cover is provided with a glide strip that is convexly curved.Type: GrantFiled: April 19, 1991Date of Patent: November 10, 1992Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 5134775Abstract: The invention relates to a shaver head for a wet shaver. The shaver head is arranged at the front end of a handle. A razor blade, in the form of a single or double razor blade, is fastened in a plastic housing. The shaver head has a front guide strip and a rear cover cap. The shaver head includes a shaving preparation, which is dispensed during shaving. The shaver head has a storage device for receiving the liquid shaving preparation, skin care preparation or the like and a dispenser for dispensing the preparation during shaving.Type: GrantFiled: September 20, 1990Date of Patent: August 4, 1992Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventors: Wolfgang Althaus, Michael Schwarz
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Patent number: 5095620Abstract: A razor head, especially a razor blade unit, is disposed at the front end of a handle of a wet razor and includes a plastic housing which is provided with a forward guide strip and a rear cover, with a razor blade being embedded in the plastic housing. A separate glide strip is disposed on the cover. So that the razor head provides a more comfortable shave, the cover is essentially formed exclusively by the glide strip.Type: GrantFiled: January 10, 1991Date of Patent: March 17, 1992Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 5090124Abstract: A razor blade unit includes a support member and at least one razor blade secured to the support member with a cutting edge extending from the support member. A wire is wrapped around at least a portion of the support member and the cutting edge of the razor blade with several space side-by-side windings traversing the cutting edge at an angle substantially perpendicular to the cutting edge. The strand is preferably a metal wire having a diameter of less than about 0.1 mm. The support member has grooves at its edges in which the wire is seated to prevent slip-page of the wire in a direction transversed to the edge of the blade.Type: GrantFiled: February 19, 1991Date of Patent: February 25, 1992Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 5084969Abstract: A razor head is provided that is disposed at the front end of a handle of a wet razor. The razor head includes a body in which is disposed a single or double razor blade. A guide strip that extends parallel to the razor blade is disposed in front of the same and is furthermore disposed on a displacement mechanism or a pivot mechanism in such a way that in a direction perpendicular to a lengthwise dimension of the guide strip, the latter is freely movable counter to a spring force. This allows the shaving angle and hence the cutting geometry to be altered in a straighforward manner.Type: GrantFiled: August 31, 1990Date of Patent: February 4, 1992Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 5074042Abstract: The invention relates to a shaver head for a wet shaver. The shaver head is arranged at the front end of a handle. A razor blade, in the form of a single or double razor blade, is mounted in the shaver head. The shaver head has a guide strip parallel to and in front of the cutting edges of the razor blades. To achieve a variation of the shaving angle and thus the cutting geometry in a technically simple fashion, the razor blades are arranged in a blade block which is swivelably mounted in relation to the remainder of the body of the shaver head. The blade block is able to swivel freely against a spring force about a swivelling axis parallel to the cutting edges of the blades.Type: GrantFiled: August 31, 1990Date of Patent: December 24, 1991Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventors: Wolfgang Althaus, Michael Schwarz
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Patent number: 5070613Abstract: A razor head, especially in the form of a so-called razor blade unit, is disposed on the front end of a handle. A single or double razor blade rests in a fixed manner on a blade holder of a plastic housing. The razor blade or blades are fixedly secured on a spacer and form a blade holder that can essentially be inserted from above into the plastic housing onto the blade platform thereof. After insertion, the blade holder can be fixed in the plastic housing. For this purpose, either a fixation strip is placed upon the blade holder, or the plastic housing is plastically deformable in such a way that the blade holder is fixed in the plastic housing.Type: GrantFiled: August 15, 1990Date of Patent: December 10, 1991Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventors: Wolfgang Althaus, Dave Coffin
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Patent number: 5063669Abstract: A razor head and especially a razor blade unit, is disposed at the front end of a handle of a wet razor and includes a plastic body that comprises a front guide strip and a rear cover. A single or double razor blade is disposed in the plastic body and rests upon a platform of a base member of the plastic body in such a way that it is fixed in position between this platform and an upper part of the plastic body that is secured to the base member. The front guide strip and the rear cover are interconnected via side parts while leaving a central opening in the vicinity of the cutting edge or edges of the razor blade or blades. The thus-formed, frame-like upper part is placed upon and connected to the base member.Type: GrantFiled: April 4, 1991Date of Patent: November 12, 1991Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 5063668Abstract: A razor head, and especially a razor blade unit, is disposed at the front end of a handle of a wet razor. The razor head comprises a plastic body having an upper side that defines a surface for engaging the skin of a user. The plastic body also has a front side and a back side. A single or double razor blade is disposed in the plastic body. A wire, portions of which, in the vicinity of the upper side of the plastic body, extend over cutting edges of the razor blades at a distance from one another and parallel to a direction of shaving. Guide elements are distributed over the length of the plastic body in the vicinity of both the front and back sides thereof, with the guide elements being provided for guiding the wire in a zigzagged manner back and forth over the upper side of the plastic body.Type: GrantFiled: April 4, 1991Date of Patent: November 12, 1991Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 5033152Abstract: A wet razor having a handle, on the front end of which is disposed a razor head that carries a razor blade, is provided. In the region between the razor head and a grasping portion of the handle, there is provided a turning mechanism via which the razor head, with its razor blade, is freely rotatable relative to the grasping portion of the handle about an axis of rotation that is perpendicular to the cutting edge of the razor blade. Associated with the turning mechanism 5 is a spring-type resetting mechanism via which the razor head, starting from a prescribed starting position and after a limited deflection or travel, can automatically return to the starting position due to spring force.Type: GrantFiled: May 22, 1990Date of Patent: July 23, 1991Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: D322688Type: GrantFiled: March 3, 1989Date of Patent: December 24, 1991Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Kenneth Grange
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Patent number: D342853Type: GrantFiled: March 13, 1991Date of Patent: January 4, 1994Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventor: Kenneth Grange