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Publication numberUS3707017 A
Publication typeGrant
Publication dateDec 26, 1972
Filing dateNov 20, 1970
Priority dateNov 20, 1970
Publication numberUS 3707017 A, US 3707017A, US-A-3707017, US3707017 A, US3707017A
InventorsElmer G Paquette
Original AssigneeBjorksten Research Lab Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Magnetic hinge
US 3707017 A
Abstract
Hinge for a magnetically held door, which can be very readily detached and reversed. This hinge is based on a design where two magnetically attracting rollers, rods or cylinders are placed in parallel positions contacting each other lengthwise, one fixed, the other one resting on a shelf attached to the lower end of the first magnet or held perpendicular to said magnet so as to support the weight of the second magnet and any door attached to it.
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Description  (OCR text may contain errors)

United States Patent Paquette Dec'.26, 1972 [54] MAGNETIC HINGE [72] Inventor: Elmer G. Paquette, Madison, Wis.

[73] Assignee: Bjorksten Research Laboratories,

Inc.

221 Filed: Nov. 20, 1970 211 Appl.'No.: 91,493

52 us. Cl .;....16/ 17 0 [51] Int. Cl. E05d 7/02 [58] Field of Search ..l6/l70, 128; 248/206 M; 292/2515 M, 163, 168, i 69, 128

[56] References Cited UNITED STATES PATENTS '1 2,963,167 12/1960 Norman ....24/206A Primary Examiner-Booby R. Gay

'. Assistant Examiner-Doris L. Troutman Attorney-Johan Bjorksten 57 ABSTRACT v Hinge for a magnetically held door, which can be very readily detached and reversed. This hinge is based on a designwhere two magnetically attracting rollers,

rods or cylinders are placed in parallel positions contacting each other lengthwise, one fixed, the other one I resting on a shelf attached to the lower end of the first magnet or held perpendicular to said magnet so as to support the weight of the second magnet and any door attached to it.

1 Claim, 3 Drawing Fignres MAGNETIC HINGE PRIOR ART Applicant is not aware of any previous work with magnetic door hinges.

Conventional mechanical hinges are among the oldest products of human technology. However, they all have the disadvantage of being relatively fixed, so that they do not offer the flexibility obtainable by the magnetic hinge. Attempts to develop magnetic hinges have been made previously but have failed because of insufficient attraction or stability.

OBJECTS OF THE INVENTION An object of this invention is a magnetic hinge, which permits the ready removal of a door, and its ready reverse detachments and/or reversal.

Other objects may become apparent as the following detailed description proceeds.

DRAWINGS The invention is further described in connection with the drawings of which FIG. 1 is a perspective view,

FIG. 2 and 3 side views of the two component parts.

DETAILED DESCRIPTION OF THE INVENTION In accordance with my invention I prepare a hinge consisting of two parts, which are separated from each other excepting by magnetic force which holds them in the desired operative position.

The hinge consists of two substantially cylindrical magnets, l and 3, which have parallel longitudinal axes, when this is substantially vertical, roller 3 rests on a preferably circular supporting member 6, which is attached to a wall 5, by the attachment plate 7, while the other magnetic roller or rod 1, which is to be hinged against the first 3, is similarly attached by means of a plate 2, to a hinged object such as a door 4. Roller or rod 1 rests on the supporting member 6 of the first hinge assembly, while the magnetic force keeps the magnetic cylinders 1 and 3 in close connection with each other.

When the door 4 is to be swung around its hinges, the

It is immaterial which of the two magnetic cylinders rests on the supporting member 6. The construction shown in FIG. 1 can be inverted, so that cylinder 1 is attached by means of plate 2 to the wall '5, while the assembly 3, 6, 7 is attached tothe door 4. In this case the assemblys 6, 7 should be turned upside down, so that the supporting plate 6 will be on the upper side, and rest on cylinder 1, which then will be attached to the wall. In other words, in this modification assemblies 3, 6, 7 and l, 2 will change place and assembly 3, 6, 7 will be turned upside down.

hile this description has dealt with a specific embodiment, it is apparent that the invention is applicable broadly to magnetic hinges in which one cylindrical magnet rests on a plate, firmly attached to the other cylinder or mechanically kept firmly beneath it, while the other hinge represented by magnetic cylinder 1 is free to move around cylinder 3 in rolling friction therewith when the door is turned. FIGS. 2 and 3 show the two hinge assemblies separated from each other, when the door is detached. G

In this application I mean with wall any one side to which one of the parts of the hinges is attached, and with door the movable or swinging member to which .the other magnetic cylinder is attached. I am using the terms roller, rod or cylinder interchangeably.

If one of the cylinders is an extremely strong magnet, the other does not need to be magnetized so long as it is magnetically attractable. However, for maximum roller, rod or cylinder 1 rolls along the periphery of strength of the hinge it is preferred that both cylinders or rollers be magnetized, and mounted so that their opposite poles touch each other.

Thus, the invention comprises the concept of a magnetic hinge, which comprises two rollers magnetically attracting each other, means for fastening these which may include for example, nails, pressbuttons, flanges, brackets, hookless fasteners of various kinds, adhesive joints and the like; and a supporting member such as a plate firmly fixed in a plane substantially perpendicular to the plane of the longitudinal axes of the said rollers positioned so as to two separable objects hingeably movable in relation to the other, such as the position of the hinges in a door, a safe, a box, or any other application where hinges may be used, in manner well known in this ancient art.

Having thus disclosed my invention, 1 claim:

1. A magnetic door hinge, comprising vertical disposed two cylinders magnetically attracting each other; and having parallel longitudinal axes means for fastening these to hingeable members; and a supporting member preventing longitudinal slippage between said cylinders; one of the said cylinders being free to roll around the other while being held thereto by magnetic force.

a c s a s

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2963167 *Aug 6, 1957Dec 6, 1960Norman AlexandraBottle support
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6553626Aug 27, 2001Apr 29, 2003Lee Valley Tools, Ltd.Magnetic hinge
US7089627Aug 21, 2001Aug 15, 2006L'oreal Usa, Inc.Magnetic hinge and device including magnetically-attracted plates
US7467440Jul 6, 2005Dec 23, 2008L'oreal Usa, Inc.Virtual hinge
US7657971May 11, 2006Feb 9, 2010Peter DankoVirtual hinge
US8159834Nov 20, 2009Apr 17, 2012Research In Motion Ltd.Magnetic hinge electronic mobile device
US8196260Feb 8, 2010Jun 12, 2012Peter DankoVirtual hinge
EP1485561A2 *Oct 29, 2002Dec 15, 2004Concept Workshop Worldwide, LLCMagnetic hinge
WO2009067959A1 *Oct 16, 2008Jun 4, 2009Nadezda RawovaMagnetic rolling joint
WO2011130762A1 *Apr 20, 2011Oct 27, 2011Moritz MuhrhoferDevice for connecting two parts in a pivotable manner
Classifications
U.S. Classification16/385, 16/DIG.140
International ClassificationE05D7/02, E05D1/00
Cooperative ClassificationE05D7/02, E05Y2201/46, E05D1/00, Y10S16/14
European ClassificationE05D7/02, E05D1/00