Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7600938 | Refill for correction pen and refill unit A refill for a correction pen is constructed of a molded article of a polyamide resin obtained from monomers having an aromatic ring or a naphthene ring, a molded article of a blend of two or more kinds of polyamide resins, or a molded article having a multi-layered... | 10/13/2009 |
| 7461991 | Quick release mechanism for access to ink reservoir of writing instrument A writing instrument having a selective engagement mechanism includes a first barrel portion with a writing tip and a second barrel portion. A docking collar with male projections extending laterally therefrom is associated with one of the first and second barrel po... | 12/09/2008 |
| 7303351 | Writing instrument and welding method of writing point assembly and writing instrument parts connecting structure and connecting method A writing point assembly and an ink tube and/or a holder can be welded appropriately at a predetermined area without using ultrasonic waves, so as to be able to prevent dislodging of the writing point assembly, ink leakage and the like. The rear end part, of a metal... | 12/04/2007 |
| 7264141 | Fluid dispenser with passive pressurization A fluid dispenser from which fluid may be dispensed upon passive pressurization of a fluid reservoir therein. Upon exposing a nib of the fluid dispenser to the surroundings, either by disengagement of a cap or extension or contraction of the fluid dispenser, the flu... | 09/04/2007 |
| 7144177 | Method and device for delivery and confinement of surface cleaning composition A device dispenser for applying a thickened cleaning composition to a selected surface area that minimizes or eliminates any unintentional or excess application of the composition and/or minimizes or eliminates any spreading or wicking of the composition beyond the ... | 12/05/2006 |
| 7137751 | Writing instrument with cushioning element A writing instrument having a writing tip that responds to pressure applied during writing through the use of a cushioning element integrally formed with another part of the writing instrument. In a preferred embodiment, a writing instrument comprises a barrel, a ca... | 11/21/2006 |
| 7001093 | Collapsible pen A collapsible pen including a telescopically extensible barrel and a ballpoint refill cartridge having a ballpoint tip removably attached to the barrel. The pen further includes a ballpoint tip cap that releasably attaches to the refill cartridge. The extensible bar... | 02/21/2006 |
| 6905276 | Method and device for delivery and confinement of surface cleaning composition A device for applying a thickened cleaning composition to a selected surface area that minimizes or eliminates any unintentional or excess application of the composition and/or minimizes or eliminates any spreading or wicking of the composition beyond the selected s... | 06/14/2005 |
| 6428232 | Roller ball pen with adjustable spring tension A roller ball pen (2) that permits a user to adjust the bias force that biases a roller ball cartridge (4) out of the pen (2) to suit the user's particular writing style. The pen (2) has a body (8) having distal and proximal ends, a roller ball cartridge ... | 08/06/2002 |
| 6213666 | Production of releasable sleeve sections A conical thread structure 댑,댒,t is provided to simplify the removal of threads in plastics sleeve elements 1,2,3,4 and to decrease production cost. The radial distance of the thread elements 50,60,51,61 of said thread structure and of the c... | 04/10/2001 |
| 5938361 | Writing utensil and method of manufacturing the writing utensil A novel writing utensil in which an ink holder unit can be inserted into, and extracted from, a housing/main shaft. Helicoid screw threads are formed on the outer circumferential surface of a coupling portion of the ink holder unit or an inner circumferen... | 08/17/1999 |
| 5915872 | Erasing liquid pen A correction pen has a joining mechanism for joining together a front end portion (11) of a barrel (1), and a coupling portion (22) of a head member (2). The joining mechanism is constructed so that an inner cylindrical portion (22b) is pressed in a first... | 06/29/1999 |
| 5445466 | Liquid applicator with screw lock First and second engaging projected portions are formed on opposing circumferential surfaces of a tubular casing and a hollow lead portion which are rotated relative to each other so as to be coupled with, thereby spirally engaging external and internal t... | 08/29/1995 |
| 5403106 | Liquid applicator with axially spaced joints First, second, and third bottom stepped portions 18, 20, 22 are formed stepwise at a lead end portion of a casing 10 of a liquid applicator. First, second, third, and fourth lead stepped portions 32, 34, 36, 38 are formed stepwise at a bottom end portion ... | 04/04/1995 |
| 5352051 | Writing instrument This invention relates to a writing instrument wherein a temporary ink storage member made of a synthetic resin injection molded article is sandwiched between a pen tip and an ink tank. In the present invention, a flange portion for fitting to a predeterm... | 10/04/1994 |
| 5217313 | Writing instrument This invention relates to a writing instrument wherein a temporary ink storage member made of a synthetic resin injection molded article is sandwiched between a pen tip and an ink tank. In the present invention, a flange portion for fitting to a predeterm... | 06/08/1993 |
| 5161906 | Writing instrument A writing instrument including a top part (4) which has a movable clip (20) arranged therein in a reliably functioning and stable manner so that the clip can be operated securely. The top part (4) contains a function section in the form of an inner cap (8... | 11/10/1992 |
| 5067839 | Stylo pen tip and auxiliary removing tool A stylo pen tip has a front part (2) supporting the writing tube (6), on which a writing fluid cartridge (10) has been placed from behind with its front section. The front end area of the writing fluid cartridge (10) forms a narrowed, elastically stretcha... | 11/26/1991 |
| 4930921 | Tubular writting pen with superposed pressure equalization chambers 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 sleev... | 06/05/1990 |
| 4806038 | Knock type mechanical pencil connection The lead reservoir and feed mechanism of a knock type mechanical pencil is secured to the tubular barrel in which it is housed by a resilient locking sleeve positioned in a groove near the front of the feed mechanism and a spring compressed between a rear... | 02/21/1989 |
| 4755075 | Writing implement with tip having attaching projections An improved writing implement comprising a barrel having multiple spiral grooves in the inner wall thereof so that a guide element of a carrier within the barrel having a single spiral thread thereon is selectively engaged with one of the multiple spiral ... | 07/05/1988 |
| 4610556 | Writing instrument with plural tips A combination writing instrument comprising a plurality of nib devices detachably mounted at the front of pen holder, all of the nib devices being mounted in a head-to-tail connection with a uniform ink flow system to induce a constant and uniform ink flo... | 09/09/1986 |
| 4603991 | Connector for propelling pencil A propelling pencil comprising an outer cylinder made of synthetic resin which can be easily molded as a unitary structure and an engaging member incorporating a chuck device including a lead propelling mechanism, the engaging member being detachably inse... | 08/05/1986 |
| 4595308 | Writing insert with sealing cap A writing implement with a sealing element on a closing cap is mountable over a writing insert having a concentric writing tip, wherein the projecting part of the writing insert is provided with abutment faces and threads on which the closing cap is screw... | 06/17/1986 |
| 4558966 | Writing instrument with sealing cap 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... | 12/17/1985 |
| 4525092 | Tubular writing tip having an outer reduced diameter portion In a nib structure of a writing instrument of the type having a tubular nib fitted to a forward end of a tubular tip of the instrument, the tubular nib is provided with a concentrically reduced diameter portion having an outer surface gently sloped from t... | 06/25/1985 |
| 4493575 | Releasable protective holder for a writing implement A releasable protective holder for a tip of a writing or drafting implement including a polygonal part, a cylindrical part extending therefrom and a writing or drafting tube on the cylindrical part extending into the holder when theimplement tip is held t... | 01/15/1985 |
| 4455101 | Writing instrument having a non-rotatable cap for barrel removal A writing instrument is described, which includes a writing assembly, a holder for an ink reservoir joined to the writing assembly, a removable barrel secured by rotation to the holder, and a removable cap which, in the closed position, fits over and prot... | 06/19/1984 |
| 4341482 | Housing assembly for fluid marking device A housing assembly for a writing instrument is provided comprising a long, hollow barrel member and a ferrule member assembled in end-to-end relationship to afford an inner chamber for a reservoir of marking fluid. A writing nib projects from the ferrule ... | 07/27/1982 |
| 4341481 | Writing instrument with barrel and ferrule assembly A housing assembly for a writing instrument is provided comprising a long, hollow barrel member and a ferrule member assembled in end-to-end relationship to afford an inner chamber for a reservoir of marking fluid. A writing nib projects from the ferrule ... | 07/27/1982 |
| 4269528 | Fountain pen with specific tubular nib A tubular nib having a beak-shaped section at one end of a tube, a slit formed in the beak-shaped section, and a slit-widening inhibiting section having a radius of curvature larger than that of the tubular part of the tubular nib at least at the section ... | 05/26/1981 |
