Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8162554 | Writing implement A writing implement is provided including a knock mechanism, in which, without obstruction of normal operation, impact can be cushioned by a damper space that is sealed off from the outside. The writing implement (10) including the knock mechanism capable of ... | 04/24/2012 |
| 8147158 | Travel multiplier mechanisms for writing instruments A writing instrument includes a travel multiplier mechanism that includes a cam member that pivots about a pivot axis in response to motion of a push button member. The cam member engages a sliding piston member in order to provide a travel multiplying effect such t... | 04/03/2012 |
| 8087841 | Retractable pen with retraction-linking device for extending pen-body A retractable pen includes an improved triggering device (i.e., an actuating means), which is easy for manufacturing and user-friendly. The retractable pen has a pen-body having two pen-tubes, a pen-cartridge within the pen-body, and an actuating means. The actuatin... | 01/03/2012 |
| 8029205 | Retractable writing instrument A retractable writing instrument has a push-to-extend, push-to-retract operating mechanism assembled for life as a single module which is removeable from a body of the writing instrument. A prehensile member is connected to the operating mechanism and is moveable ax... | 10/04/2011 |
| 7972072 | Retractable writing implement To prevent faint writing or writing failure from occurring during a writing operation due to back shock and to reduce shock sound by using a simple structure, a pressure contact member protrudes from one surface or both surfaces on the side of a shaft tube and a kno... | 07/05/2011 |
| 7891897 | Travel multiplier mechanisms for writing instruments A writing instrument includes a travel multiplier mechanism that includes a cam member that pivots about a pivot axis in response to motion of a push button member. The cam member engages a sliding piston member in order to provide a travel multiplying effect such t... | 02/22/2011 |
| 7527445 | Writing instrument A writing instrument has a writing refill slidably disposed in a tubular casing. A rotary cam mechanism extends and retracts the writing refill in response to knocking of a knocking member at a rear end of the casing. The rotary cam mechanism includes a cam cylinder... | 05/05/2009 |
| 7390137 | Writing instrument A writing instrument comprising a smooth elongate case has a recessed switch for extending and retracting the tip of an ink cartridge. This allows the tip to be extended and retracted with one hand, while at the same time preventing the switch from being snagged by ... | 06/24/2008 |
| 7384207 | Ergonomic hand held implement with retractable tip An improved hand-held implement is provided with a body having external surfaces that define contours which match and ergonomically engage the surfaces of a user's thumb and fingers when the user grasps the implement, so as to provide a large surface area of contact... | 06/10/2008 |
| 7128489 | Writing instrument A writing instrument that includes a sleeve-like housing, a reservoir axially extending in the housing, a push button positioned in the rear portion of the housing, a latching device for latching the push button in a writing position with a latch recess in the housi... | 10/31/2006 |
| 7059797 | Sales promotional writing instrument A sales promotional writing instrument comprises features that simultaneously provides a point of sale marketing opportunity and discourages theft. Generally, the writing instrument comprises a body defining a longitudinal axis. The body includes an attachment membe... | 06/13/2006 |
| 7044668 | Stylized writing instrument A stylized writing instrument shaped like a proprietary or familiar object. In general, embodiments of the invention include a housing shaped like the proprietary or familiar object, a writing implement, and internal mechanisms provided within the housing for extend... | 05/16/2006 |
| 6966717 | Pen with changeful penholder A pen with changeful penholder is comprised of multiple decoration rings disposed around the penholder and an elastic retaining mechanism inserted either at the front or the tail of the penholder. The decoration rings are held closely in series when subject to restr... | 11/22/2005 |
| 6921225 | Structure of a ballpoint pen with extensible closing top A ballpoint pen with extensible closing top structured to include a spring pen top, a handhold, an extensible pen body, a cap and a pen refill, wherein the extensible pen body embodies a two-stage configuration. Furthermore, a butt pin is configured interior of the ... | 07/26/2005 |
| 6914596 | Personal digital assistant with retractable stylus A Personal Digital Assistant (PDA) with retractable stylus comprises a retractable stylus, a housing, a stylus slot, and a push portion, wherein a contact pad is attached to the inner side of the push portion. The retractable stylus comprises a pen shaft having a re... | 07/05/2005 |
| 6832868 | Writing implement which lengthens and shortens when actuated A writing implement comprising a housing (2), a writing cartridge (4) arranged in the housing in a movable manner, and a control unit that displaces the writing cartridge between a first position in which the cartridge tip (6) protrudes from the... | 12/21/2004 |
| 6761495 | Pen structure An improved structure of a pen is disclosed. The casing is provided with a conic casing at the top portion and having two protruded pegs. The cap mounting for capping onto the conic casing is provided with an upper circular groove and a lower circular groove at the ... | 07/13/2004 |
| 6698960 | Push-button writing implement A push-button writing implement includes a barrel having at least a transparent or semitransparent part, a refill axially slidably contained in the barrel, and provided with a writing tip, and a refill-operating mechanism including a push button, and a re... | 03/02/2004 |
| 6609846 | Retractable writing instrument A writing instrument with a retractable refill mechanism comprises: an replaceable refill having a front end as the pen tip, a pen barrel which has a front end opening and accommodates said refill, a slider positioned at the rear end of the refill and sli... | 08/26/2003 |
| 6592279 | Pop-up pen A pop up writing implement that includes a pump handle, an outer sleeve, an inner pen casing, a spring, a pen cartridge and a connector, which in one embodiment is U-shaped. The pen is expandable and contractible, making it small enough to easily carry in... | 07/15/2003 |
| 6554518 | Writing instrument with a retraction device A writing instrument with a retraction device includes a hollow barrel, a grip attached to a lower end of the hollow barrel, a writing implement mounted in the hollow barrel and the grip, and an elastic member mounted around a lower portion of the writing... | 04/29/2003 |
| 6530709 | Nail polish applicator An elongated, all-in-one applicator for dispensing and applying liquid nail polish includes: (a) an elongated, hollow, generally pen-shaped main housing having an aperture at one axial extremity; (b) an elongated cartridge housing disposed within an upper port... | 03/11/2003 |
| 6309122 | Locating structure for a bounce device in a pen A locating structure for a bounce device in a pen, having a hollow penholder, a locating device, and a center stick. The penholder has an end with a transverse guide groove and a locating hole below the guide groove. The locating hole has a size greater t... | 10/30/2001 |
| 6290415 | Telescopic device with a firm positioning effect A telescopic device with a firm positioning effect, comprises a hollow upper sleeve having at least one arcuate recess at the inner wall thereof, and having a through hole at the top portion thereof and internal threads at the lower end thereof; a hollow ... | 09/18/2001 |
| 6280110 | Pressing device for a pen A pressing device for a pen having a spring, a center stick engaging the spring and a nib part. The pressing device comprises a penholder having a guide slot, a movable tube having an outwardly projecting engaging piece that extends through the guide slot... | 08/28/2001 |
| 6276855 | Retractile pen A retractile pen includes an outer barrel and an inner barrel axially slidably received in the outer barrel. The outer barrel is provided with two axially spaced and aligned stop holes and the inner barrel is provided with an elastically depressible butto... | 08/21/2001 |
| 6257787 | Ball point pen smooth touch A tubular cap for the top of a ball point pen, the cap having a long slot with an offset defining a lower long slot and an upper long slot with narrow slots perpendicular to the upper long slot and extending on either side of the long slot, the top of the... | 07/10/2001 |
| 6120204 | Hand writing instrument with built-in stamp A hand writing instrument is provided with a built-in stamp (51) and built-in stamp pad (36). The stamp (51) and stamp pad (36) are respectively provided in carriers (50, 38) which are pivotally mounted on a mounting shaft (32) in such a manner that, in t... | 09/19/2000 |
| 5547301 | Writing instrument with rotatable advancement and retraction The present invention provides writing instruments having a mechanism for extending and retracting a writing tip and advancing a lead by rotational operation. The writing instrument is comprised of a front tubular member (1); a front inner tubular member ... | 08/20/1996 |
| 5263786 | Rotary-cam ball-point pen A rotary-cam ball-point pen having an outer sleeve, a rotary-cam mechanism comprised of a cam body provided on the inside of the outer sleeve, a rotary-cam engaging the cam body, and a cam bar engaging the rotary-cam, and a refill. The rear portion of the... | 11/23/1993 |
| 5186562 | Elongate handwriting implement with rotatable decoration on rear end An elongate handwriting implement with a rotatable decoration on the rear end is disclosed. The rear end of an elongate handwriting casing has the decoration. The decoration includes a tubular fixed element fitting around the rear end of the handwriting c... | 02/16/1993 |
| 5145272 | Projectable and retractable, push button writing instrument A writing instrument includes a reservoir, a barrel in which the reservoir is received for a longitudinal displacement between a retracted position and a writing position, a push button for actuating the reservoir, and a shift device for moving the reserv... | 09/08/1992 |
| 5095580 | Cosmetic applicator A cosmetic applicator such as a lipbrush is provided with an actuator which includes a tab part locating in and extending outwardly of a slot formed in an applicator barrel. By the sliding of the tab between opposite extreme ends of the slot, a lipbrush e... | 03/17/1992 |
| 5083881 | Writing tool including openable decorative article at shaft end A writing tool such as a ball pen or the like including an openable decorative article at a shaft end comprises a shaft member serving as a casing for the writing tool, a core vertically displaceably received in the shaft member, an actuation member conne... | 01/28/1992 |
| 4986682 | Retractable finger pen A fingertip-receiving pen includes a short hollow penholder for receiving a finger and a writing element coupled with a compression spring and attached to a socket within the penholder. The socket includes a unitary resilient hook member which can be forc... | 01/22/1991 |
| 4961664 | Nail polish container having a moveable brush A special container for storing and dispensing nail polish includes a brush applicator unit that is movably mounted on the cap unit of the container. The brush unit is moved by depressing a button on the cap, and a stop means is included in one embodiment... | 10/09/1990 |
| 4943175 | Feed mechanism for a writing device A feed mechanism for a writing device comprising a writing medium carrier which is displaceable in a housing in a front and rear position by means of a press button. Connected with the press button is a rotatable switching element which comprises a circul... | 07/24/1990 |
| 4729685 | Writing instrument with press mechanism and magnetic catch 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 (... | 03/08/1988 |
| 4663846 | Cutter having a retractable and removable blade A blade is removably supported on one end of a shank which is axially movably disposed in a tubular holder. The shank has an axially extending slit terminating at the end thereof for supporting the blade therein and a tapered portion having an outside dia... | 05/12/1987 |
| 4572688 | Ball-point pen A ball-point pen is disclosed, having a push button which can be displaced to a limited extent in longitudinal direction of the ball-point pen housing so as to extend the cartridge which is urged by spring in the inward direction, and having a detent mean... | 02/25/1986 |
