Having Plural Closures Patents (Class 132/300)
-
Patent number: 11006731Abstract: A refillable cosmetic compact with a product base insert repositionable in relation to a base structure between an engaged configuration and a disengaged configuration. An actuation opening through the base structure permits a pressing of a release button of the product base insert to induce the product base insert from the engaged to the disengaged configuration. Resiliently deflectable catch members project longitudinally from either or both of the base structure and the product base insert. Converging deflection surfaces engage the catch members as the product base insert is repositioned from the disengaged configuration to the engaged configuration to deflect the catch members laterally inwardly to retain a cosmetic pan and to permit a deflection of the catch members laterally outwardly as the product base insert is repositioned from the engaged configuration to the disengaged configuration to release or receive a cosmetic pan.Type: GrantFiled: March 28, 2019Date of Patent: May 18, 2021Assignee: HCP Packaging USA, Inc.Inventors: David P. Dunton, Stephen G. Dudienski
-
Patent number: 9867446Abstract: The present invention relates to a cosmetic container having an inner container and a sealing structure for an inner container cap and, more specifically, to a cosmetic container having an inner container and a sealing structure for an inner container cap in which an outer wall of the inner container is formed to have a larger diameter than a sealing projecting ring formed on the lower portion of the inner container cap such that the sealing projecting ring is forcibly inserted into the outer wall of the inner container, and a first hinge block having an oval hinge hole formed therein is formed on a side of the inner container such that a hinge pin is able to move up and down in the hinge hole, thereby enhancing a force for sealing the interior of the inner container when the inner container is closed.Type: GrantFiled: March 5, 2015Date of Patent: January 16, 2018Assignee: PUM-TECH KOREA CO., LTD.Inventor: Do Hoon Lee
-
Patent number: 8851088Abstract: The present invention describes a receptacle (10) for a personal care composition comprising a container (12), a separate closure member (14), at least one applicator means (22) for the application of the composition to a user and at least one removal means (24) for the removal of the composition from a user, wherein: the container comprises a reservoir means for retaining a quantity of composition and an aperture (18) in an upper portion of said container; and wherein the closure member has a hollow construction and a releasably sealable lid member (16), and the interior of the closure member is configured to house the at least one applicator means and the at least one removal means; and wherein securing means (20) are provided to permit the closure member to be releasably engagable with the container to close the aperture when engaged. The present invention also describes a method of applying a personal care composition.Type: GrantFiled: October 22, 2008Date of Patent: October 7, 2014Assignee: Reckitt & Colman (Overseas) LimitedInventors: Carl Dibnah, Christopher Leonard Padain, Thomas Edward Walker, Craig Ian Wightman
-
Patent number: 8789540Abstract: The present invention provides a novel structure for sealing a cosmetic container using a double-injection molded rib on the container body sealing against a deformable hard-rubber ring on the container cover. The invention will maximize product reliability by improving the sealing structure of a make-up base or cosmetic container through providing a clear, air-tight effect since the sealing structure cannot be deformed, even in the case of long-term use. The invention provides uniform, airtight adhesion without unequal distribution of coupling intensity between internal sealing components when the container cover is closed. Further, the aesthetics of the container are increased because a closure clasp is not necessary, and it is possible to eliminate the problem of dried-out product created when the container is fitted with a closure clasp or similar device.Type: GrantFiled: October 28, 2010Date of Patent: July 29, 2014Inventors: Yong Jun Lee, Jeen Gee Kim
-
Patent number: 8342192Abstract: A cosmetic compact (1) comprises a container (9) to hold liquid cosmetics, and a stopper (5) for to the compact (1). The stopper comprises a protrusion (7) that cooperates with a dispensing orifice (8) of the container. The stopper is connected by a hinge (6) to a lid (2) or base (3) of the compact, preferably to the lid. The stopper may thus serve as a latch for the lid of the compact. The hinged connection (6) may be a web integrally formed with the stopper and the adjacent part of the compact, or it may comprise a pin or protrusion.Type: GrantFiled: January 11, 2007Date of Patent: January 1, 2013Assignee: Toly Products (UK) Ltd.Inventor: Philippe Parker
-
Patent number: 7874440Abstract: A child-resistant package includes first and second elements having base walls with rectangular peripheries, continuous peripheral walls extending around the peripheries, locking projections or tabs on opposed sections of the peripheral walls, and cylindrical walls extending from the base walls within the peripheral walls and having thread segments. The second element is threadable onto the first element to bring the peripheral walls into aligned abutment and the locking tabs into engagement with the locking projections to resist unthreading of the elements. The peripheral wall of the second element is inwardly flexible and resilient adjacent to the locking tabs to permit manual movement of the locking tabs inward from the locking projections so that the elements can be unthreaded from each other.Type: GrantFiled: June 9, 2006Date of Patent: January 25, 2011Assignee: Rexam Healthcare Packaging Inc.Inventor: Maurice R. Gnepper
-
Patent number: 7832564Abstract: A cosmetics case having a dual sealing structure is disclosed. The cosmetic case includes an outer case (1), an inner case (10), an inner lid (30), a rail case (20), and an outer lid (40). The outer case has a receiving chamber and a fastening groove. The inner case is received in the receiving chamber such that its fastening step is inserted into the fastening groove, and has a packing groove to receive a packing. A plurality of locking guides is provided on the outer circumference of the inner case. The inner lid is rotated around a second hinge pin, thus opening or closing the inner case, and the lower end of the inner lid comes into close contact with the packing. The rail case is mounted on the outer case. The outer lid includes projections that are guided along the corresponding locking guides.Type: GrantFiled: January 30, 2008Date of Patent: November 16, 2010Assignee: Nest Filler PKG Co., Ltd.Inventor: Seung-Il Kim
-
Patent number: 7597211Abstract: A cosmetic case having a first cover for a main body and a second cover for a refill container which is inserted in a container of the main body is provided. The second cover has an air vent structure for preventing a volatile agent, which is contained in an oily and solid foundation, from volatilizing. The air vent structure of the second cover blocks the discharge of the air inside the refill container so as to prevent materials of the beauty product from ventilating when the first cover for the main body is closed after closing the second cover for the refill container. Sealing by the second cover is maintained as well as easier operation of closing because ventilation is performed by a valve provided in the second cover.Type: GrantFiled: July 28, 2003Date of Patent: October 6, 2009Inventor: Sung Ill Kang
-
Patent number: 7503331Abstract: A dual dispensing mode cosmetic compact for use with a cosmetic powder puff, cosmetic applicator sponge, or cosmetic brush, has a base member with an annular lip, a well to hold a cake of cosmetic material, and a closure lid receivable onto the base member. A scraper member located adjacent the well is engageable with the upper surface of the cosmetic cake. Finger-engageable structures adjacent to the well are turnable thereon, and there is a driving connection between the finger-engageable structures and the scraper member, which effects corresponding turning movement of the latter during turning of the finger-engageable structures. In one mode, the scraper member shaves off limited quantities of the upper surface of the cosmetic cake to produce controlled amounts of dust-like cosmetic powder particulates therefrom. In another mode, the scraper member is shifted by the user, to a second position remote from and outside of the annular lip.Type: GrantFiled: April 16, 2007Date of Patent: March 17, 2009Inventors: Serena Eng, Charles Chang
-
Patent number: 7481229Abstract: A case incorporates a base part housing a reserve of product. A lid covers the base part. A sealing element can be arranged to close a space containing the product at least when the lid is closed. The sealing element can be supported by a pivot enabling it to rotate about geometrical axes of rotation.Type: GrantFiled: November 3, 2003Date of Patent: January 27, 2009Assignee: L'OrealInventor: Jacques Habatjou
-
Publication number: 20080099038Abstract: The present invention relates to a makeup compact with one or more detachable leaves for holding cosmetic products that may be detached and replaced when the cosmetic product is depleted or as otherwise desired by the user. The leaves may also be detached from the compact and interchanged with different detachable leaves holding different cosmetic products.Type: ApplicationFiled: October 27, 2006Publication date: May 1, 2008Inventor: Jill Washington
-
Publication number: 20080060673Abstract: A cosmetic case includes a base, first and second cover members, and first and second fastening units. The base confines a first receiving space that opens upwardly. The first cover member is connected pivotally to the base and is movable between covering and uncovering positions to cover and uncover the first receiving space. The second cover member is connected pivotally to and cooperates with the first cover member to confine a second receiving space, and is movable between covering and uncovering positions to cover and uncover the second receiving space. The first fastening unit is provided on the base and the first cover member for retaining releasably the first cover member at the covering position on the base. The second fastening unit is provided on the first and second cover members for retaining releasably the second cover member at the covering position on the first cover member.Type: ApplicationFiled: September 8, 2006Publication date: March 13, 2008Inventor: Chien-Hung Shen
-
Patent number: 7322478Abstract: The present invention relates to a refill container, that holds and protects an internal tray filled with a cosmetic material. The refill container that holds the internal tray filled with the cosmetic material is made up of a mounting portion and an engaging portion. The mounting portion has a structure to be mounted over the internal tray in such a manner as to cover an exposed surface of the cosmetic material. The mounting portion has a lid portion that faces the exposed surface and protects the exposed surface in a mounted state and a holding portion that holds the internal tray in such a manner that the internal-tray bottom surface of the internal tray is exposed in the mounted state. Further, in the mounted state of the internal tray being mounted in the mounting portion, the engaging portion catches the internal tray in such a manner as to prevent the internal tray from being disengaged from the mounting portion.Type: GrantFiled: June 21, 2001Date of Patent: January 29, 2008Assignee: Shiseido Company, Ltd.Inventors: Kazuhiro Goto, Sachiko Toyoda
-
Patent number: 7314051Abstract: A refill container housing-type airtight compact container comprises a container body 2; a lid body 3; a refill container 7; an inner frame 4 that has a circumference wall 29 and an annular cover 18 formed around the circumference wall to conceal a container joint 15 and a cut 14 and to cover a space between the circumference wall and the container body, that is fixed in the container body to house the refill container therein, and that has formed therein an engaging tab that fastens the refill container, a hinge receiving portion 35, and a recess 37 that receives a closing portion 36 of the refill container; a finger-hooking flange 27 of a lid portion 5 of the refill container; a press-down portion 28 of the lid body that presses down the finger-hooking flange; first and second airtight seal portions 58, 59 that seal the refill container air-tightly; and a push piece 8 that opens the lid body and the lid portion at the same time.Type: GrantFiled: July 28, 2006Date of Patent: January 1, 2008Assignee: Yoshida Industry Co., Ltd.Inventors: Yukitomo Yuhara, Takayuki Tokushita
-
Patent number: 7014045Abstract: A cosmetic compact includes a base member, a pair of covers having a first cover and a second cover, and the first cover and the second cover are pivotally connected to the base member. A plurality of flexible members are attached to both sides of the base member, and at least one latch structure is formed on the pair of covers.Type: GrantFiled: October 22, 2002Date of Patent: March 21, 2006Assignee: Rexam Der Kwei Cosmetic Packaging Ltd.Inventor: Ching-lang Lin
-
Patent number: 6988630Abstract: A storage container which is opened and closed by horizontally rotating a lid body with regard to the container body, having a rotating torque such that the lid body has a suitable resistance feel when rotating, and at the same time, makes a technical issue of the setting of the lid body rotation limits, so that the rotation of the lid body with regards to the container body will be reinforced, so that a fulfilling feeling during use can be obtained, and which has a storage section with functions appropriate to the storage material being stored.Type: GrantFiled: June 24, 2003Date of Patent: January 24, 2006Assignee: The Procter & Gamble CompanyInventor: Masaharu Matsumoto
-
Publication number: 20040139980Abstract: A case incorporates a base part housing a reserve of product. A lid covers the base part. A sealing element can be arranged to close a space containing the product at least when the lid is closed. The sealing element can be supported by a pivot enabling it to rotate about geometrical axes of rotation.Type: ApplicationFiled: November 3, 2003Publication date: July 22, 2004Applicant: L'OREALInventor: Jacques Habatjou
-
Patent number: 6712076Abstract: A container for storing makeup is disclosed. The container may include a cover and a base coupled to the cover and configured for holding cosmetic material. The container may be selectively reconfigurable between a open, use position and a closed, storage position and the cover may engage the base to provide a hermetic seal when the container is in the storage position. The cosmetic material may be viewed in the substantially airtight container through at least one viewing area.Type: GrantFiled: March 12, 2002Date of Patent: March 30, 2004Assignee: Rexam Beauty and Closures Inc.Inventors: Jon Alexander, Keith S. Everson, Carol J. Nikolaus
-
Publication number: 20020148481Abstract: A cosmetic container including interleaved substantially vertical walls upwardly and downwardly extending respectively from a base component and from a product reservoir, with a further downwardly extending tongue projection from an underside of its cover, and in which cooperating detents on the tongue projection and on the reservoir pivot the cover open and closed, to form an internal hinge which is unobservable to a consumer, thereby providing a more aesthetically pleasing appearance to the container in both its opened and closed positions.Type: ApplicationFiled: April 12, 2001Publication date: October 17, 2002Inventors: Robert J. Sheffler, Charles Chang
-
Patent number: 6412640Abstract: A two-part compact includes (a) a casing (2) having a bottom (6) delimiting at least one compartment (8a-8c) intended to contain at least a first product, for example, a make-up product (P1, P2, P3), and at least one lid (10a, 10b) mounted on the bottom so as, selectively, to occupy an open position or a closed position in which it/they removably cover(s) the compartment(s); (b) a case (4), intended to contain a second product (P4), mounted removably on the casing (2). The case (4) is mounted on the casing in such a way that it cannot be detached from the casing unless at least one of the lids (10a) is open. Advantageously, the first product (P1, P2, P3) is a compact powder and the second product (P4) is a stick of lipstick.Type: GrantFiled: March 13, 2000Date of Patent: July 2, 2002Assignee: L'OrealInventors: Laurent Destanque, Philippe Renault
-
Patent number: 6386209Abstract: A cosmetic case containing a replaceable inner case which can be easily removed or inserted, and which is specifically structure to maintain the cosmetic material contained therein in a fresh and useable condition. The invention is comprised of an outer case with a floor area and inner peripheral wall defining a space for an inner container, an outer cover attached by a hinge to the outer case, a main latch employed to hold the outer cover closed, a replaceable inner container providing a cosmetic holding space, an inner container cover capable of opening or closing over the cosmetic holding space, and a sub-latch employed to hold the inner cover closed against the inner container. The inner case is equipped with a hinge part to allow opening and closing of the inner cover, the hinge part fitting into a cutout section on the peripheral wall of the outer case so as to expose the hinge and thus allow wide angle opening of the inner case cover.Type: GrantFiled: October 16, 2000Date of Patent: May 14, 2002Assignee: Yoshida Industry Co., Ltd.Inventors: Yukitomo Yuhara, Kiyokazu Miyokawa, Michiaki Kumagai, Takashi Sugiyama
-
Patent number: 6336460Abstract: A sealable container comprised of a container body to which an internal hinged lid is installed as means of sealing or exposing an internally located substance-containing space, and a separate external cover that screws onto the container body. When attached, the external cover presses downward onto the internal lid to seal the lid against the substance-containing space. A hinge mechanism, consisting of a hinge pin and specific hinge boss design, is located between the container body and internal lid. The hinge boss incorporates a yoke with an elongated channel able to grip the hinge pin while also sliding along the hinge pin in a linear direction as the internal lid moves downward against the substance-containing space.Type: GrantFiled: March 6, 2001Date of Patent: January 8, 2002Assignee: Yoshida Industry Co., Ltd.Inventor: Yukitomo Yuhara
-
Patent number: 6311701Abstract: A cosmetic case containing a replaceable inner case which can be easily removed or inserted, and which is specifically structured to maintain the cosmetic material contained therein in a fresh and useable condition. The invention is comprised of an outer case with a floor area and inner peripheral wall defining a space for an inner container, an outer cover attached by a hinge to the outer case, a main latch employed to hold the outer cover closed, a replaceable inner container providing a cosmetic holding space, an inner container cover capable of opening or closing over the cosmetic holding space, and a sub-latch employed to hold the inner cover closed against the inner container. The inner case is equipped with a hinge part to allow opening and closing of the inner cover, the hinge part fitting into a cutout section on the peripheral wall of the outer case so as to expose the hinge and thus allow wide angle opening of the inner case cover.Type: GrantFiled: October 16, 2000Date of Patent: November 6, 2001Assignee: Yoshida Industry Co. Ltd.Inventors: Yukitomo Yuhara, Kiyokazu Miyokawa, Michiaki Kumagai, Takashi Sugiyama
-
Patent number: 6283129Abstract: A cosmetic case includes a push piece integrally formed to a tray in order to reduce a number of parts and to simplify the assembly thereof. The tray 14 for containing a cosmetic material P is received within a storage cavity 12c of a case body 12. The tray 14 and a cover 16 are pivotably joined with a rear extremity of the case body 12 by means of a single hinge 24. A hook mechanism 26 comprises a first latch 26a provided on the case body 12 and a second latch 26b provided on the cover 16. A push piece 30 for releasing the engagement of the hook mechanism 26 is integrally formed on the peripheral wall 14b of the tray 14, and has a pair of cantilever arms 30a and 30b, and a push button 30c. Each arm 30a and 30b has elasticity by itself and the push button 30c is integrally formed between a pair of the arms 30a and 30b to be movable by bending deformation of the arms 30a and 30b. The push button 30c of the push piece 30 is disposed within a recess 28 of the case body 12, and projects outside.Type: GrantFiled: November 19, 1999Date of Patent: September 4, 2001Assignee: Yoshida Industry Co. Ltd.Inventors: Yukitomo Yuhara, Yuji Ideshita
-
Patent number: 6223754Abstract: A single individually molded plastic unit comprises a base member having two opposite side edges with a flat bottom surface and an open top surface having a raised continuous periphery. A cover member has the same shape and two side edges as the base member, and also has a top surface and an open bottom surface having a raised continuous periphery. One side edge of the cover member is secured to one side edge of the base member by a living hinge. A catch is detachably engageable with the bottom surface of the cover member and is supported by an external projection secured to the opposite side edge of the base member. Inward movement of the projection toward the base member releases the catch engagement and allows the cover member to be pivoted about the living hinge away from the base member.Type: GrantFiled: March 21, 2000Date of Patent: May 1, 2001Assignee: Jerhel Plastics IncInventors: Joseph H. Burdi, Dennis J. Preteroti
-
Patent number: 6192895Abstract: A cosmetic case containing a replaceable inner case which can be easily removed or inserted, and which is specifically structured to maintain the cosmetic material contained therein in a fresh and usable condition. The invention is comprised of an outer case with a floor area and inner peripheral wall defining a space for an inner container, an outer cover attached by a hinge to the outer case, a main latch employed to hold the outer cover closed, a replaceable inner container providing a cosmetic holding space, an inner container cover capable of opening or closing over the cosmetic holding space, and a sub-latch employed to hold the inner cover closed against the inner container. The inner case is equipped with a hinge part to allow opening and closing of the inner cover, said hinge part fitting into a cutout section on the peripheral wall of the outer case so as to expose the hinge and thus allow wide angle opening of the inner case cover.Type: GrantFiled: June 29, 1998Date of Patent: February 27, 2001Assignee: Yoshida Industry Co. Ltd.Inventors: Yukitomo Yuhara, Kiyokazu Miyokawa, Michiaki Kumagai, Takashi Sugiyama
-
Patent number: 6129089Abstract: A cosmetic case comprised of a main case into which a removable sealed refill container can be installed. The main case is comprised of a main hinge on which a main case cover pivots, a latch able to hold the main case cover closed, a perimeter wall located between the main hinge and latch, and a cutout space which is provided to enclose the hinge of the internally installed refill container. The cutout space is formed within the inner surface of the perimeter wall but does not extend to the outer surface, thereby hiding the refill container hinge from an external view of the cosmetic case. The refill container includes a hinged cover and latch mechanism to hold the cover closed against the refill container body. A single action release mechanism is provided to simultaneously or sequentially open the main case latch and refill container latch.Type: GrantFiled: October 28, 1999Date of Patent: October 10, 2000Assignee: Yoshida Industry Co. Ltd.Inventor: Yukitomo Yuhara
-
Patent number: 6076679Abstract: This invention relates to a hermetically sealed cosmetic container which accommodates volatile cosmetic material in a refill case detachably installed in a container housing.Type: GrantFiled: March 1, 1999Date of Patent: June 20, 2000Assignee: Yoshida Industry Co., Ltd.Inventors: Yukitomo Yuhara, Yuji Ideshita
-
Patent number: 5950639Abstract: In an airtight compact for a cosmetic, a main container member (1) is formed such that an inner frame member (3), which has a storage portion (14) for a cosmetic implement and an accommodation portion for an inner dish (5), is fitted and fixed within a outer frame member (2). The outer frame member has a shallow container shape with a catch wall (6) on a front surface wall thereof and a protuberant catch strip (6a) which engages with an outer lid member (9) and a sliding surface (6b) along which a release-activating piece (13) is slidable. An inner dish (4), which has a peripheral resilient sealing member about the opening thereof, is fitted firmly into the inner-dish accommodation portion of the inner frame member.Type: GrantFiled: August 10, 1998Date of Patent: September 14, 1999Assignees: Yoshino Kogyosho Co., Ltd, Kose CorporationInventors: Kazuo Suzuki, Masahiro Sumise
-
Patent number: 5906212Abstract: A compact comprising a base (1) has a recess (3) for a dish (4) of makeup (5), an external cylindrical periphery, an intermediate plate (7) and a cover (2) articulated on the base (1) and is provided with an internal mirror (2'). The recess in the base (1) comprises an external cylindrical periphery provided with a plurality of screw ramps that are equally angularly spaced. The intermediate plate (7) has a recess in which is rotatably disposed a gripping disk (10) covering at least partially the intermediate plate (7), this gripping disk being provided with a cylindrical collar (11) provided internally with a plurality of screw ramps (12) arranged to coact with the screw ramps (6) provided on the external periphery of the recess (3), so as to grip the intermediate plate (7) against the base (1).Type: GrantFiled: November 5, 1997Date of Patent: May 25, 1999Assignee: LIR FranceInventor: Bernard Favre
-
Patent number: 5884636Abstract: A display-type applicator-containing compact for cosmetics and the like, comprises a shallow jar having a wide neck portion with external screw threads, and a ring-shaped screw cap member that is mounted on and cooperable with the neck portion. The neck portion has an annular sealing lip, and a plastic lens member is disposed in the screw cap member to provide an underside sealing area that engages the sealing lip. A swivel-mounted tray adapted to hold cosmetic material is pivotally mounted in the jar in spaced relation to the jar bottom, providing sufficient space under the tray to store a puff or similar applicator. The underside of the tray is a mirror, for use when the tray is swung up out of the jar, and when the applicator is being used.Type: GrantFiled: September 8, 1997Date of Patent: March 23, 1999Assignee: Charles ChangInventors: Robert J. Sheffler, Charles Chang
-
Patent number: 5875795Abstract: This invention provides an airtight cosmetic container, which comprises a cover, a base, and a hollow gasket positioned on the cover or the base. As the cover is moved into the closed position, the gasket deforms to a point where the gasket sealingly engages the cover and the base. The gasket surrounds a volatile solvent-containing product, and because the gasket deforms between the cover and the base, a seal is obtained which substantially prevents the loss of the volatile solvent from the product when the container is closed.Type: GrantFiled: October 23, 1997Date of Patent: March 2, 1999Assignee: Color Access, Inc.Inventor: Herve F. Bouix
-
Patent number: 5353818Abstract: A cover is pivotably attached to a case body. Male thread portions of a multiple thread and unthreaded portions are alternately formed on a peripheral wall of a cosmetic container section of the case body. A ring is rotatably attached to the cover and externally fitted to the peripheral wall. The ring has female thread portions of a multiple thread intermittently formed. The female and male thread portions are engageable and disengageable. An inner cover made of an elastic material is attached to the lower portion of the cover so that the inner cover is brought into press contact with an open edge of the peripheral wall. A space is formed between the cover and the inner cover so that the inner cover is elastically deformed and expanded. When the female and the male thread portions are engaged with each other and the ring is rotated to a closed position, the cover approaches the case body so that the inner cover is brought into press contact with the open edge of the peripheral wall.Type: GrantFiled: December 27, 1993Date of Patent: October 11, 1994Assignees: KOSE Corporation, Yoshino Kogyosho Co., Ltd.Inventors: Kazuo Suzuki, Masahiro Sumise, Kazuo Suzuki
-
Patent number: 5320116Abstract: Compact has an unlatching slide with a button surface and formed with front and rear cam surfaces. The hinged cover is held closed by a detent and the powder tray is held in the base also by detents. Light finger pressure on the unlatching slide button causes the front cam to force up the hinged cover disengaging the cover detent to open the compact, and heavy finger pressure on the unlatching slide forces the powder tray up disengaging the tray detents and liberating the tray from the frame so that it may be replaced.Type: GrantFiled: July 2, 1993Date of Patent: June 14, 1994Assignee: Risdon CorporationInventor: Walter T. Ackermann