Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7419548 | Liquid crystal dispensing apparatus having separable liquid crystal discharging pump A liquid crystal dispensing apparatus includes a container to contain liquid crystal, a discharge pump, and a nozzle to dispense liquid crystal from the discharge pump onto a substrate. The discharge pump has a separably formed case, a cylinder received in the case,... | 09/02/2008 |
| 7377406 | Two stage grease gun A portable grease gun with a dual pressure output capability which can be selectively changed by the user with little effort. The larger diameter plunger is slidable within a plunger retainer. The larger diameter plunger has a bore through them in which a smaller di... | 05/27/2008 |
| 7367478 | Dosing device for at least one medium A dosing device for at least one medium includes a casing part connectable to a medium reservoir, having a pumping device located in the casing part and an applicator connected to the pumping device. The pumping device is provided with at least one inlet valve, as w... | 05/06/2008 |
| 7337927 | Two stage grease gun A portable grease gun with a dual pressure output capability which can be selectively changed by the user with little effort. A larger diameter plunger is longitudinally coupled to an extension. The larger diameter plunger and its extension are variable in length by... | 03/04/2008 |
| 6085871 | Lubrication system for a mechanism, in particular for a rotary bearing in a spacecraft The invention relates to a lubrication system for a mechanism (27), on-board a spacecraft. It comprises a non pressurized tank (20) communicating with the mechanism (27) via a tube (220). A piston (23) closes the tube (220) while the mechanism is at rest.... | 07/11/2000 |
| 5816452 | Dispenser gun for viscous or semi-viscous products A dispenser gun for selectively dispensing controlled quantities of viscous or semi-viscous materials, and in particular liquid pesticides or insecticides, employs a vacuum driven operating system for discharging and reloading the viscous or semi-viscous ... | 10/06/1998 |
| 5746728 | Fluid pump without dead volume A pump for delivering a fluid contained in an elastic phial includes a pump body and a movable piston fitted inside the pump body. The front end of the pump body is located on a fluid-outlet side, and the front end includes an outlet orifice (11) sealed o... | 05/05/1998 |
| 5577640 | Creamy substance dispenser, in particular for toothpaste A creamy substance dispenser is formed from a small number of components of easy and economical construction and assembly. The dispenser includes a main body defining a metering chamber communicating with a creamy substance container, within the chamber t... | 11/26/1996 |
| 5551493 | Filling apparatus with traveling nozzle An apparatus dispenses flowable material from a source and includes a dispensing nozzle that reciprocates along an axis. A metering assembly includes a metering cylinder, a metering element reciprocally movable in the interior of the metering cylinder and... | 09/03/1996 |
| 5509581 | Chemical irritant dispenser A chemical irritant dispenser includes an in line nozzle, chemical canister and actuator, whereby the dispenser may held in the palm of the hand with the actuator between the thumb and forefinger and the nozzle at the heel of the hand, the dispenser furth... | 04/23/1996 |
| 5439177 | Discharge head for discharge apparatuses such as manual pumps for discharging medium therethrough A discharge head has an operating cap and a discharge connection for fitting on the operating shaft of a discharge apparatus. The discharge head has a shaft over most of its length positioned in contact-free manner within an outer sleeve of the discharge ... | 08/08/1995 |
| 5316183 | Water-shooting toy configured as a bow and arrow A water-shooting toy configured as a bow and arrow comprises a self-contained water pump sub-assembly and a case assembly. The pump sub-assembly includes a cylinder defining a pump chamber, a piston having a rod extending out from a body and a handle that... | 05/31/1994 |
| 5305922 | Toothpaste dispenser A dispenser is disclosed herein having a paste container removably mounted in a stationary base with a dispensing nozzle for discharging paste therethrough. In one version, the paste container is pressurized by use of a removable air pump while in another... | 04/26/1994 |
| 5217148 | Pharmaceutical pump dispenser A lower end of a first hollow cylinder is connected to an upper end of a second hollow cylinder. A first outer hollow stem has an intermediately disposed first external enlargement disposed within the first cylinder. A hollow vertical main piston is verti... | 06/08/1993 |
| 5125539 | Regulable-flow dispenser of a pasty product mixed with a secondary pasty product and the use of such a dispenser A pasty product dispenser (1) comprising a body defining a chamber for storing at least one main pasty product and pumping system defined by a wall surmounting the storage chamber and by an intake valve member, the wall carrying on the side of the storage... | 06/30/1992 |
| 5102018 | Miniature dispenser having a venting groove in the pump housing A liquid dispensing device having a pump carrying the internal mechanism disposed in a container part of the device. The pump has a flange which rests on the upper edge of the container and which is connected to an outer bush member. The bush member is fi... | 04/07/1992 |
| 4972977 | Spray bottle apparatus with pressure multiplying pistons The present invention comprises a spray bottle in which the pressure resulting from the gripping force applied by the user is amplified and this increased pressure used in generating a spray such as an aerosol or fluid stream. In its preferred embodiment,... | 11/27/1990 |
| 4946076 | Dispenser for pasty compositions A dispenser for pasty compositions, having a housing within which a piston displaceable in only the direction of emptying is arranged. An actuator enables a headpiece to act on a restorable wall which can be pressed in the direction towards the piston, th... | 08/07/1990 |
| 4917158 | Dispensing device for fluid products A dispensing device for fluid products, such as dairy products, has a coaxially positioned valve cylinder inside a dispensing cylinder, both connected at their upper end to the product source. The dispensing piston is in the form of a ring piston which sl... | 04/17/1990 |
| 4875604 | Dispenser for paste-like products The invention relates to a dispenser for paste-like products which is characterized by a particular simple construction of its dispensing mechanism requiring a reduced number of components. Integrally connected to a supply container of the dispenser is a ... | 10/24/1989 |
| 4838462 | Double bellows purge valve A liquid dispensing unit is described. The unit includes a first valve element that is held within a liquid passageway by a first spring mechanism. This spring mechanism is designed to yield under pressure to allow the first valve element to move off a va... | 06/13/1989 |
| 4810659 | Process for injecting a minute volume of a solution and an apparatus therefor Process for injecting a minute volume of a solution from a nozzle device by positive pressure applied from a source of compressed air with or without positive pressure applied in parallel from a cylinder device, comprising applying the positive pressure f... | 03/07/1989 |
| 4784582 | Fluid dispensing pump A pneumatically operated pump for dispensing controlled shots of paste material includes a disposal paste syringe tube having a ferrule with an axial dispensing hole centered in the bottom. An axial movable plunger extending through the length of the syri... | 11/15/1988 |
| 4728008 | Dispenser for flowable media A dispenser or delivery apparatus for flowable media, particularly very viscous or gel-like media, has a dosing chamber body (38) located within the stored medium and the body (38) moves backwards and forwards over part of the pump stroke of the pump pist... | 03/01/1988 |
| 4694977 | Fluid dispenser A vacuum-tight and pressure-tight closed storage space in a container is constructionally combined with a thrust piston pump projecting thereinto and a drag piston slidably guided therein and in the initial position of the thrust piston pump is hermetical... | 09/22/1987 |
| 4664299 | Assembly for dispensing doses of a substance of a liquid or pasty consistency A dispenser comprises a container having a movable wall in the form of a plunger and an opposite fixed wall opening into a dispensing nozzle. Dispensing is actuated by a fixed dispenser mechanism having an operating rod with a pusher plate. The pusher pla... | 05/12/1987 |
| 4603794 | Pressure multiplying dispenser A pressure multiplying dispenser for delivering fluid, preferably as a spray to the atmosphere, from a source of fluid, preferably a spray bottle, is described. The dispenser includes in combination a hollow cylindrical member, a nozzle delivery tube with... | 08/05/1986 |
| 4555047 | Automatic toolchanger tapping lubricant dispenser A tapping lubricant dispenser apparatus is provided for use in numerically controlled automatic toolchanger machining systems to dispense tapping lubricant into a previously drilled hole before tapping. The tapping lubricant is usually a viscous tapping c... | 11/26/1985 |
| 4480767 | Apportioning and dispensing apparatus In an apparatus to apportion and dispense dough, wherein dough is discharged through an outlet having a lower, circumferential cutting edge and is cut off by a piston having an upper, circumferential cutting edge, the piston has an upper, integral, coaxia... | 11/06/1984 |
| 4442958 | Container for dispensing a viscous liquid medium A container for holding a viscous liquid medium and from which the same may be selectively dispensed in a desired amount includes a rigid body having a deformable top portion and carrying a dispensing mouthpiece. The application of an inwardly-directed fo... | 04/17/1984 |
| 4239131 | Self-priming liquid dispenser A container having an opening in its top by which it may be filled with liquid and an opening in its bottom through which liquid may be expelled. The bottom opening is covered by the distal end part of a first rod which is surrounded by a gasket; the firs... | 12/16/1980 |
| 4153186 | Valve and medicant dispensing syringe A dispensing syringe comprising telescopically engaged inner and outer sleeves or cylinders having corresponding dispensing ends and open receiving ends, an insert cup extends across and is positioned in the outer cylinder at its dispensing end, and a pai... | 05/08/1979 |
| 3938623 | Grease gun A grease gun having a hollow cylindrical body closed at one end and threadedly engaged at the other end with a removable delivery nozzle. Within the cylindrical body there is a central push rod having one end extending through a central aperture in the cl... | 02/17/1976 |
