| Patent Number |
Title Of Patent |
Date Issued |
| D287603 |
Writing pen |
January 6, 1987 |
|
| D286164 |
Writing pen |
October 14, 1986 |
|
| D284582 |
Fountain pen for artists and calligraphers or the like |
July 8, 1986 |
|
| D257857 |
Drawing pen |
January 13, 1981 |
|
| D254316 |
Ink cartridge with rupturable sealing element |
February 26, 1980 |
|
| D253180 |
Combined drafting pen holder and container |
October 16, 1979 |
|
| D251977 |
Dual cosmetic pencil sharpener |
May 29, 1979 |
|
| D249887 |
Stylographic pen |
October 10, 1978 |
|
| 5004365 |
Drop-weight and tubular writing instrument |
April 2, 1991 |
| A drop weight for a tubular writing instrument has a drop weight body consisting of an upper and lower part (20; 22). The lower part (22) has a front support surface for supporting the drop weight body in its front position inside the tubular writing instrument, and the cleaning wire (21 |
| 5000606 |
Drop-weight and tubular writing instrument |
March 19, 1991 |
| A drop weight for a tubular writing instrument has a drop weight body consisting of an upper and lower part (20; 22). The lower part (22) has a front support surface for supporting the drop weight body in its front position inside the tubular writing instrument, and the cleaning wire (21 |
| 4930921 |
Tubular writting pen with superposed pressure equalization chambers |
June 5, 1990 |
| Tubular writing pens of the stylographic type, as used by artists and technical draftsmen. Particularly a tubular writing pen having superposed inner and outer ink pressure equalization chambers defined in the cylindrical pen body. A removable outer sleeve complementally engages the |
| 4913283 |
Case for drawing boards |
April 3, 1990 |
| A moisture-proof, easily transportable case for writing or drawing boards is provided. In accordance with the invention, a case which protects the writing or drawing board during transportation from the manufacturer to the user, and also protects the contents of the case from water damag |
| 4900176 |
Pivotable pen tip |
February 13, 1990 |
| In a tube pen tip with a writing tube (3) supported in the front end of a pen body (1) where the writing tube (3) is pivotable against a resilient pressure means in a limited way in all directions around a point located on the writing tube center axis (11) and inside of the pen body (1). |
| 4891245 |
Electrophoretic display particles and a process for their preparation |
January 2, 1990 |
| A process for producing particles for use in electrophoretic displays, wherein a heavy, solid pigment preferred for its high contrast or refractive index properties is coated with a polymer starting material. The process significantly reduces the specific density of the resultant par |
| 4833490 |
Writing element with exchange mechanism |
May 23, 1989 |
| In a device for exhanging objects, in particular writing instruments, between two holders (4, 5) open on one side, in which the object (6) is retained at least in one holder (4) by the cooperation of two retaining elements, one of which is a permanent magnet and the other is a ferrom |
| 4769914 |
Lettering device |
September 13, 1988 |
| A lettering device having a writing arm (4) that is movable between a position of repose and a writing position and that receives a stylus that has a Bowden control (29) for moving the writing arm (4) between the position of repose and the writing position. The Bowden control is guided |
| 4764045 |
Writing instrument with reservoir having perpendicular fibers |
August 16, 1988 |
| A writing instrument includes a writing fluid reservoir in the form of a fiber body, in which there is a coaxially extending writing fluid conductor with capillary conduits. The fibers of the reservoir extend at right angles to and radially with respect to the longitudinal axis of the |
| 4761090 |
Tubular writing pen tip with adjustment means |
August 2, 1988 |
| An improved tubular writing pen having a writing pen body (3) and a forepart (1) joined to it that holds in a forward direction a writing tube (5). The forepart (1) is revolvable, yet is installed axially non-dislocatably in the pen body (3) and in the latter is braced against disloc |
| 4753546 |
Pressure balanced stylographic pen |
June 28, 1988 |
| Improvements in stylographic technical writing pens, particularly through a venting channel design which provides for a pressure balancing, or equalization, between an ultimate ink reservoir pressure and the total pressure at the writing tip; as writing depletes ink within the reservoir. |
| 4729685 |
Writing instrument with press mechanism and magnetic catch |
March 8, 1988 |
| In a writing instrument with a pressure mechanism for the movement of a writing element (4, 5, 6, 11, 12, 13) against spring pressure from a retracted position of rest into an advanced writing position, in which retention by means of a retention element (18, 19, 20) takes place, the |
| 4669617 |
Pen holder device |
June 2, 1987 |
| In a pen holder device, a pen holder body (3) contained in a support body (2) is pivotable between an operational position, which is slightly inclined from the perpendicular, and a generally horizontal readiness position, wherein an acute angle exists between the operational position |
| 4665107 |
Pigment encapsulated latex aqueous colorant dispersions |
May 12, 1987 |
| A process for modifying colorants which comprise an active ingredient of solid primary particles in the submicron range by an encapsulation with polymer starting materials that are not substantially altered during the process. Writing fluids, textile colorants and cosmetic inks are discl |
| 4573503 |
Ink dropper closure |
March 4, 1986 |
| An improved bottle closure having a dropper, wherein the rubber suction element of the dropper has a posterior end, extending through the closure element, and an anterior end defined by a conventional suction tube. An annular bearing element of the suction element is adapted to seal agai |
| 4558966 |
Writing instrument with sealing cap |
December 17, 1985 |
| A writing instrument having a closure cap assembly (1, 2, 3, 4 and 5) which can be placed in a sealing manner on the writing tip (20), whereby a positive engagement with an indentation in the writing tip is established via an elastically deformable finger (8), when the closure cap is in |
| 4552483 |
Device for covering an oblong opening in a housing |
November 12, 1985 |
| A device for covering an oblong housing opening (3), along which an element (5) extending with one portion of itself into the housing (1) is movable back and forth, which comprises a flexible band (4), which immovably is secured at each end of the housing opening (3). The band is guided |
| 4548325 |
Technical pen holder |
October 22, 1985 |
| A stand for receiving a tubular writing pen which comprises an insertion opening, a sealing element of elastically deformable material disposed below the insertion opening and adapted to come into a sealing engagement contact with the free end of the writing tube of an inserted tubular |
| 4496958 |
Drawing pen exchanger for computer controlled drawing machines |
January 29, 1985 |
| A drawing pen exchanging device for transferring a drawing pen between a drawing head (4) and a drawing pen magazine (5) in a computer controlled drawing device. The drawing pen (7) is held against a stationary holding area in the drawing head (4) with the aid of a spring holding element |
| 4489333 |
Device for exchanging objects in particular writing instruments |
December 18, 1984 |
| In a device for exchanging objects, in particular writing instruments, two substantially identically embodied holders (5, 5') which are open at one side are provided. These holders are movable relative to one another in a plane extending substantially at right angles to there longitudina |
| 4459602 |
Automatic drafting apparatus |
July 10, 1984 |
| In an automatic drafting apparatus having at least one tubular writing pen (1) held in a drawing head (3), and movable between a rest position, in which the lower end of its tubular writing tip (2) is sealed by a laterally movable sealing element (9), and into a raised intermediate p |
| 4382707 |
Felt tip writing pen |
May 10, 1983 |
| Tubular writing pens of the stylographic type, particularly a felt tip pen. A cylindrical hollow body supports an ink reservoir at one end and a felt tip which extends from the ink reservoir through the front of the hollow body. The tubular body encompasses the writing element, while def |
| 4374565 |
Stand for writing devices |
February 22, 1983 |
| A stand for writing utensils, particularly tubular writing pens, which comprise a lower part that can be placed on a base, and an upper part, that is pivotally mounted on the lower part and has at least one hole for receiving a writing pen. The upper part engages the lower part by means |
| 4356632 |
Writing apparatus |
November 2, 1982 |
| A lettering device of the type having a keyboard for choosing the symbols to be written, comprising a writing part, which may be separated from said keyboard, wherein the pen is selectively moved by two geared motors, in two coordinate directions, to correspond to the symbols to be drawn |
| 4217058 |
Reservoir cartridge for writing pens |
August 12, 1980 |
| A disposable ink reservoir cartridge which is attachable to tubular writing pens of the stylographic type embodying a pressure compensating chamber. The reservoir cartridge is characterized by its axial deformability, such that the free volume of the reservoir may be reduced, as ink flow |
| 4207012 |
Ink compensating chamber for scriber |
June 10, 1980 |
| A capillary writing pen of the type having an expansion or compensation chamber intermediate the ink reservoir and ambient air. The expansion chamber is improved such that inadvertent flowing of ink from the reservoir to the capillary pen tip due either to pressure or temperature cha |
| 4188634 |
Method for regulating ink flow in drafting pens |
February 12, 1980 |
| Method of regulating ink flow in automatic drafting pens of the type supporting a plurality of stylographic pens in parallel, including pumping ink from a reservoir into the writing pen capillary tubes, gauging the level of ink intermediate the reservoir and the capillary tubes and m |
| 4173021 |
Sealing element for an automatic drafting pen |
October 30, 1979 |
| A sealing element for an automatic drafting pen with a tubular tip wherein a reciprocating horizontal actuating means that acts through a linkage operates a horizontal slide that in one position permits the pen to contact the drafting surface and in a second position seals the pen with |
| 4156313 |
Compass housing |
May 29, 1979 |
| A compass housing of the type used for supporting a pair of adjustable compass legs in resilient contact with a spring clip. The housing includes a transverse cross-shaft as a bearing for the upper ends of the compass legs and an elongated rib, upraised to define a fulcrum for the spring |
| 4130444 |
Device for cleaning ink pen points |
December 19, 1978 |
| A device for cleaning ink pen points of the type which are removable from an ink pen. The device includes an upper section and a lower section complementally engagable with each other, so as to support the pen point in a vertical attitude for sequential attack by cleaning water and dryin |
| 4106031 |
Automatic drafting device |
August 8, 1978 |
| Automatic drafting device of the type employing a tubular writing pen, particularly an adjustable sealing element which is used against the writing tip of the pen when the pen is in a retracted rest mode. The sealing element is laterally disengaged from the pen tip when the pen is an |
| 4103999 |
Rupturable sealing element within an ink reservoir cartridge |
August 1, 1978 |
| In capillary writing pens of the type having a scribing point and a replaceable ink cartridge, a method of manufacturing a rupturable sealing element for the cartridge, such that minimal pressure is required to be applied to rupture, while ensuring secure sealing of the ink prior to the |
| 4102584 |
Capillary tube pen point |
July 25, 1978 |
| Capillary writing pen of the type embodying a cylindrical body having an open end and a pen tip with reservoir insertable as a cartridge within the cylindrical body. Particularly the improvement consisting of providing wave like complemental surfaces at the abutting interface of the cyli |
| 4095907 |
Cover for scriber |
June 20, 1978 |
| A capillary writing pen of the type having an expansion or compensation chamber intermediate the ink reservoir and ambient air. The expansion chamber is improved such that inadvertent flowing of ink reservoir to the capillary pen tip due either to pressure or temperature changes is a |
| 4086011 |
Sealing gasket for a capillary pen cover |
April 25, 1978 |
| Capillary writing pen of the type embodying a sleeve, an ink reservoir supported within the sleeve and a tubular writing point extending from the reservoir and through the bottom of the sleeve. Particularly, a sealing gasket supported within the cover for the sleeve, so as to seal both a |
| 4074414 |
Process for the production of lettering or symbol templates |
February 21, 1978 |
| A process for the production of lettering or symbol templates by production of symbol cut-outs in a template sheet consisting of thermoplastic plastic, characterized by forcing the cut-out portions of the symbols in a shaping or forging step, and subsequently cutting off the protruding |
| 4032627 |
Tooth whitening cosmetic composition |
June 28, 1977 |
| A tooth whitening cosmetic composition of the type applied temporarily to the dry tooth surface and removable by solvent. The cosmetic composition is characterized by its lustrous white appearance, extended wearing time, thicker viscosity and ease of removal with solvent. |
| 4019243 |
Method for forming a tubular writing pen |
April 26, 1977 |
| An improved writing point assembly for stylographic, or tube pens and a method for making such an improved writing point. The writing tube itself may be formed by a deep drawing operation and then secured, in a surrounding relationship, to the front end of a plastic cylindrical membe |
| 3977798 |
Tubular writing pen |
August 31, 1976 |
| An improved writing point assembly for stylographic, or tube pens and a method for making such an improved writing point. The writing tube itself may be formed by a deep drawing operation and then secured, in a surrounding relationship, to the front end of a plastic cylindrical membe |
| 3964926 |
Cleansing receptacle for capillary writing pen parts |
June 22, 1976 |
| An improved cleaning appliance, particularly for use in cleaning component parts of stylus or tube writing pens. The improved structure includes a holder coupled to the cover, so that the holder is slidable relative to the cover and fixedly supportable by the container when the cover has |
| 3963359 |
Protective screw cap for the writing point of a tube writing pen |
June 15, 1976 |
| A receptacle or protective cap for the writing point of a tube writing pen, the pen comprising a writing cone provided with a writing tube and fitted into a sleeve, there being an ink equalization chamber in a space between the cone and the sleeve, wherein the cap comprises an open-ended |
| 3955894 |
Tubular writing pen |
May 11, 1976 |
| A tubular or stylus pen of the type comprising a cylindrical body provided with an axial inner bore, having at its front end a writing tube and an outer surface defining an ink equalizing chamber, further including a casing element with a portion receivably mounted upon the cylindrical b |
