Patents by Inventor Jochem J. de Vries
Jochem J. de Vries 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: 4545120Abstract: 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 about an axis of rotation. The cutting unit comprises a cutting member having a circular central body, cutter arms extending from the periphery of the central body toward the shear plate, and a cutter formed at the end of each cutter arm, a part of each cutter arm extending in a substantially axial direction. A hair-pulling member has a circular central portion, hair-pulling-blade arms extending from the periphery of the central portion toward the shear plate, and a hair-pulling blade formed at the end of each hair-pulling-blade arm, each hair-pulling blade being associated with and movable relative to a cutter, a part of each hair-pulling-blade arm extending in a substantially axial direction.Type: GrantFiled: December 5, 1983Date of Patent: October 8, 1985Assignee: U.S. Philips CorporationInventor: Jochem J. De Vries
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Patent number: 4510687Abstract: There is provided a shaving apparatus comprising a shear plate with hair-entry apertures; and a cutting unit associated with and reciprocatory relative to the shear plate, the cutting unit including a frame. Cutters extend from the frame toward the shear plate, each cutter having a trapezoidal cross section and being in contact along its base with the shear plate. Two hair-pulling blades are respectively associated with and movable relative to the opposite sloping sides of each cutter, each hair-pulling blade normally being in contact with the shear plate. A pair of resilient elements respectively connects the opposite ends of each hair-pulling blade to the frame.Type: GrantFiled: December 27, 1982Date of Patent: April 16, 1985Assignee: U.S. Philips CorporationInventors: Gerrit J. Groothuis, Atze de Haan, Hendrik Poel, Eduard W. Tietjens, Jochem J. de Vries
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Patent number: 4343086Abstract: There is provided a shaving apparatus having a shear plate formed with hair entry apertures and a cutting unit rotatable relative to the shear plate. The cutting unit comprises a cutting member having a central body provided with cutters, a hair-pulling member having a central portion, hair-pulling elements respectively associated with and movable relative to the cutters, respective connecting arms extending from the hair-pulling elements to the central portion of the hair-pulling member, and an annular cover plate positioned over the inner ends of the connecting arms and engaging the central portion. The central body and the central portion each have a central opening, through both of which means formed on the cover plate extends for engaging the cutting member to secure the hair-pulling member between the cutting member and the cover plate.Type: GrantFiled: May 5, 1980Date of Patent: August 10, 1982Assignee: U.S. Philips CorporationInventors: Jochem J. de Vries, Ferdinand M. Trees
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Patent number: 4283849Abstract: The movable cutting unit of a dry-shaver comprises a plurality of cutters (23) and a corresponding plurality of hair-pulling blades (24) each arranged in front of one of the cutters for movement therewith relative to the shear plate or foil of the shaver, and each movable relative to the associated cutter for its hair-pulling action. Each hair-pulling blade is mounted for pivoting motion on its associated cutter.Type: GrantFiled: September 4, 1979Date of Patent: August 18, 1981Assignee: U.S. Philips CorporationInventors: Manfred Engelhardt, Jan Reinink, Jochem J. de Vries, Eduard W. Tietjens
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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
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Patent number: 4262416Abstract: A shaving apparatus includes a cutting member substantially constituted by a central body provided at its circumference with cutters connected to the central body by means of connecting arms. For reasons of manufacturing technology and cost the material thickness is desirable minimized. However, limiting factors in this respect are the strength and the rigidity of the cutting member. In the instant construction the strength and the rigidity of the cutting member are increased by having the connecting arms secured to a bent reinforcement rim at the periphery of the central body.Type: GrantFiled: September 28, 1978Date of Patent: April 21, 1981Assignee: U.S. Philips CorporationInventors: Dirk J. Van Hemmen, Jan Reinink, Jochem J. de Vries
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Patent number: 4259781Abstract: A shaving apparatus has a circular shear plate provided with hair-entry 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 provided with circumferentially arranged cutters and lead cutters respectively associated with and movable relative to the cutters. Each lead cutter is secured to the central body of the cutting member by a resilient connecting arm, the inner end portion of which extends substantially radially with respect to the cutting unit axis and undergoes torsion-loading by reason of the movement of the lead cutter away from the shear plate, the lead cutter being connected eccentrically to such inner end portion. The torsion-loading is elastically opposed in each instance.Type: GrantFiled: March 5, 1979Date of Patent: April 7, 1981Assignee: U.S. Philips CorporationInventors: Ebbe Boiten, Gerrit J. Groothuis, Jochem J. de Vries
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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
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Patent number: 4240199Abstract: There is provided a shaving apparatus having a shear plate formed 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 cutters and a hair-pulling member having lead cutters respectively associated with and movable relative to the cutters. A separate coupling piece is provided for securing the cutting member and the hair-pulling member together by passage through corresponding central openings in each such member.Type: GrantFiled: September 28, 1978Date of Patent: December 23, 1980Assignee: U.S. Philips CorporationInventors: Ebbe Boiten, Eduard W. Tietjens, Jochem J. De Vries
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Patent number: 4223437Abstract: There is provided a shaving apparatus having a shear plate formed with hair-entrance apertures and a cutting unit associated with and drivable relative to the shear plate. The cutting unit comprises a cutting member having cutters and lead cutters respectively associated with and movable relative to the cutters. In order to obtain a correct positioning of each lead cutter relative to its associated cutter, an extension is provided on either the lead cutter or the cutter for engagement with the cutter or the lead cutter as the case may be.Type: GrantFiled: September 28, 1978Date of Patent: September 23, 1980Assignee: U.S. Philips CorporationInventors: Ebbe Boiten, Jochem J. De Vries
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Patent number: 4222168Abstract: There is provided a shaving apparatus having a shear plate formed 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 cutters and a hair-pulling member having lead cutters respectively associated with and movable relative to the cutters. A separate coupling piece is provided for securing the cutting member and the hair-pulling member together by passage through corresponding central openings in each such member. One or more connection tabs extend radially inwardly from the periphery of the central opening in the hair-pulling member for contact with the coupling piece.Type: GrantFiled: December 6, 1978Date of Patent: September 16, 1980Assignee: U.S. Philips CorporationInventors: Ebbe Boiten, Eduard W. Tietjens, Jochem J. de Vries, Tjamme de Vries
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Patent number: D257744Type: GrantFiled: January 16, 1978Date of Patent: December 30, 1980Assignee: U.S. Philips CorporationInventors: Dirk J. van Hemmen, Jochem J. De Vries