Patents by Inventor Wolfgang Althaus
Wolfgang Althaus has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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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: 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: 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: 5060377Abstract: The invention relates to a shaver head for a wet shaver in which a single or double razor blade is arranged in a plastic housing including a front guide strip. The plastic housing has perforations both on the underside and at the rear which are respectively connected to an open region of the plastic housing at the cutting edge of the razor blade.Type: GrantFiled: August 15, 1990Date of Patent: October 29, 1991Assignee: Wilkinson Sword GmbHInventors: Wolfgang Althaus, Michael Schwarz
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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: 5031319Abstract: A wet razor having a handle, at the front end of which a razor blade unit is disposed on a razor head, is provided. The handle has a central longitudinal plane that, starting from the razor head, has an essentially S-shaped curved configuration. The rear end of the handle is provided with a tongue-like widened portion. To improve the ergonomic properties of the razor, on the longitudinal underside of the handle 1 the tongue-like widened portion has a flattened portion.Type: GrantFiled: September 21, 1990Date of Patent: July 16, 1991Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventors: Wolfgang Althaus, Kenneth Grange
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Patent number: 5029391Abstract: A twin-pivot-head razor with a head that has an outer body that is provided with a window to receive a separate subassembly in which is integrated the holding mechanism for the razor blade unit. Starting from a spring-loaded neutral position, the razor blade unit, via this holding mechanism, can carry out pivoting movements about an axis that is parallel to the cutting edge of the razor blade. The separate subassembly is also pivotable within the outer body about an axis that is perpendicular to the aforementioned pivot axis, whereby the neutral position is formed by a spring arrangement within the outer body.Type: GrantFiled: March 14, 1990Date of Patent: July 9, 1991Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventors: Wolfgang Althaus, Dave Coffin
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Patent number: 5001832Abstract: A razor blade unit includes a plastic support member having a guide surface and a top cap. At least one razor blade having a cutting edge is embedded in the support member. At least one freely rotatable cylindrical roller is attached axially to the support member and extends parallel to the cutting edge of the razor blade to engage a skin area. A cylindrical roller has a lower coefficient of friction than the plastic support member. The cylindrical roller was preferably made of metal and is located in the guide surface and/or in the top cap of the razor blade unit.Type: GrantFiled: August 24, 1988Date of Patent: March 26, 1991Assignee: Wilkinson Sword GmbHInventor: Wolfgang Althaus
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Patent number: 4970784Abstract: A razor having a razor blade unit with a razor blade fixedly disposed in a plastic housing, and also having a handle, on the front end of which the razor blade unit is pivotably mounted via a forked holder that can be opened and closed. The razor blade unit, starting from a spring-loaded neutral position, is pivotable about a pivot axis that extends parallel to the cutting edge of the razor blade. To provide a pivot head razor where the razor blade unit can execute only slight pivot movements relative to the handle during the shaving process, the pivot axis of the forked holder extends in the region of the cutting edge of the razor blade.Type: GrantFiled: August 31, 1989Date of Patent: November 20, 1990Assignee: Wilkinson Sword Gesellschaft mit beschrankter HaftungInventors: Wolfgang Althaus, Michael Schwarz
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Patent number: 4916814Abstract: A wet shave turret razor assembly includes a razor head and single or double blades. The razor head is mounted at the front end of a handle. Several blades are uniformly mounted along the periphery of a blade holder. The blade holder is attached to the razor head by a rotation spindle. The blades are pivotable about an axis. The edges of the blades are parallel to the axis. Further, the blade holder in conjunction with the blades is rotatable by a knob. The knob is located in the axis and mounted on the blade holder for snapping the blades into the shaving position. To improve razor handling, the rotary knob is telescopable. The blade holder is provided with a hood and a thread enclosure.Type: GrantFiled: December 30, 1987Date of Patent: April 17, 1990Assignee: Wilkinson Sword Gesellschaft Mit Beschrankter HaftungInventor: Wolfgang Althaus
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Patent number: 4612705Abstract: An open razor comprises a blade holder 2 pivoted to a protective cover 3 into and out of which it can be folded. The blade holder 2 supports a blade unit 8 formed by a blade 9 sandwiched between two side members 8',8" of plastics material. Guide grooves 15',15" in the side members are engaged by the inwardly-directed flanges 16',16" of a clamping rail 7 forming part of the blade holder.The blade units are stored in a dispenser from which they can be withdrawn by sliding the rail 7 fully on to a blade unit and then lifting one end of the rail to lift the blade unit against the force of resilient retaining projections which engage opposite ends of each blade unit to hold it in the dispenser.Type: GrantFiled: August 1, 1984Date of Patent: September 23, 1986Assignee: Wilkinson Sword LimitedInventor: Wolfgang Althaus
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Patent number: 4601392Abstract: A travel cap 10 for a T shaped safety razor 11 is designed to be slid on to the razor head 12 from one end of the latter, and comprises a first tubular portion 10a which fits around the heat to one side or the razor handle 13, and a second wrap-around portion 10b integral with the first portion and extending over the remaining length of the razor head, the longitudinal sides 10c,10d of the wrap-around portion being spaced apart to define a slot 10e along which the razor handle 13 can slide.Type: GrantFiled: November 14, 1984Date of Patent: July 22, 1986Assignee: Wilkinson Sword LimitedInventor: Wolfgang Althaus