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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7320680 | Single-use syringe A single-use syringe includes a barrel having front and rear passageways and a shoulder disposed there between, a plunger movable in the rear passageway, a carrier having a tail portion extending from a front end wall of the plunger, and pushing and retained regions... | 01/22/2008 |
| 7290543 | Fluid product dispensing device A fluid dispenser device having a body (1), a fluid reservoir (3) containing two half-doses, a dispensing mechanism that dispenses a half-dose of fluid upon actuation, and an energy accumulation mechanism (50, 51, 55) that accumulates energy in ... | 11/06/2007 |
| 7101182 | Dental apparatus A prophy angle comprising a body, a drive system, and a paste feed assembly. The body includes a cylinder and a head portion associated with the cylinder. The drive system extends through the body and includes a drive shaft assembly and a cup shaft assembly. The dri... | 09/05/2006 |
| 6827704 | Safety syringe A safety syringe is disclosed. A plurality of axial slits are formed in the outer wall of the unidirectional buckling chamber of the seat. An inner wall of the unidirectional buckling chamber has a second unidirectional buckling lip. A buckling head at a front end o... | 12/07/2004 |
| 6761707 | Safety syringe having needle holder capable of fixing secured and easy to drawback A safety syringe comprises a barrel, which has a body forming a receiving hole, a stop portion in the receiving hole. A needle holder has a hole therein, an elastic lock piece formed a claw at distal end, and a dragged portion. The needle holder is received in the r... | 07/13/2004 |
| 6494866 | Syringe plunger rod and method of manufacture A plunger rod for a syringe in is of integrally injection molded plastic construction having an elongated body with a coaxial end portion. An external thread extends around the end portion for threaded receipt into a plunger tip that is slidably received ... | 12/17/2002 |
| 6371941 | Prefilled syringe A prefilled syringe has a tubular body which has an open front end and an open rear end. A front assembly is mounted on an outer periphery of a front end portion of the tubular body. A finger grip is mounted on an outer periphery of a rear end portion of ... | 04/16/2002 |
| 6053894 | Hypodermic syringe A hypodermic syringe is disclosed wherein the medicine in the outlet tube leading to the hollow needle is caused to be injected into the patient. The expulsion of the fluid medicine from the outlet tube of the syringe is accomplished by an auxiliary pisto... | 04/25/2000 |
| 6041821 | Frozen pipe thawing system A micro heater assembly (10) is provided with a micro heater (12) on the distal end (14) of an elongated support wire (16). Micro heater (12) is insertable into a frozen pipe (60) to reach the frozen area (100) of the pipe (60) whereat to thaw pipe (60) f... | 03/28/2000 |
| 5188617 | Apparatus and a method for taking samples from gum pockets An apparatus for taking samples from gum pockets, including a holder (1) for an ampoule (3) detachably inserted therein, a manually operated element (2) cooperating with the holder for reducing the space in the ampoule, so that liquid contained therein wi... | 02/23/1993 |
| 4744791 | Syringe with automatic piston retraction The syringe is of the aspirating type and comprises a transparent barrel, having an outlet spout for mounting a hypodermic needle at one end and fully open at its opposite end. A partition separates the barrel into a shorter and a longer chamber, the latt... | 05/17/1988 |
| 4678107 | Dripless dispenser for liquids and viscous fluids A dispenser for liquids and viscous fluids has a syringe-like device with a barrel for containing fluid and a nozzle at one end. The plunger is movable axially in the barrel for discharging the fluid. At the inner end of the plunger is a flexible, elastic... | 07/07/1987 |
| 4629454 | Hypodermic syringe A squeezing finger pressure is exerted on a trigger (100) carried by a finger-grip body (12) of a hypodermic syringe (10). The depressed trigger (100) displaces the free end of a cantilever spring (34) inwardly, moving a lock element (88) out from a radia... | 12/16/1986 |
| 4612010 | Infiltration pump The infiltration pump has an outer cylinder and an inner piston mounted for reciprocal motion within the cylinder. A fluid displacing seal is attached to one end of the piston. A coil biasing spring is placed within the cylinder between the piston and the... | 09/16/1986 |
| 4601711 | Syringe holder device for controlled force amplification syringe fluid flow Apparatus and method concepts and embodiments are provided for control of fluid flow by force amplification syringe means. The concepts are particularly suited to surgical methods and apparatus for removing fluid from a patient or administering fluid to t... | 07/22/1986 |
| 4581022 | Dental syringe A precision injection system for intralignmental anesthesia and the like having a syringe with a tubular handle portion which is removably connected a tubular headpiece as a longitudinal extension thereof. The headpiece receives a carpule cartridge with i... | 04/08/1986 |
| 4216771 | Hypodermic syringe with aspiration effect A hypodermic syringe is provided with aspiration effect and comprises a cylindrical member or ampoule, a piston, a piston rod and an aspiration rod, which is connected to the piston. The aspiration rod extends through a channel in the piston rod and is at... | 08/12/1980 |
