...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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| Application No. | Application Title | Issue Date |
| 20110203115 | CLOSABLE KNIFE WITH OPENING MECHANISM A knife includes a handle and a blade coupled to the handle so as to be movable between an open position in which the blade extends from the handle, and a closed position, in which the blade is received within the handle. A detent mechanism is configured to resist movem... | 08/25/2011 |
| 20110119925 | KNIFE The invention relates to a knife, comprising a blade carrier (14) for holding a blade (15), having at least one primary knife part (11) and a secondary knife part (12), which is configured to be movable relative to the primary knife part (... | 05/26/2011 |
| 20110067246 | Linear slide action mechanical folding knife opening mechanism One embodiment of folding knife using a mechanical linear slide action blade deployment system housed in a predetermined shaped cavity (28). Said slide action blade deployment system is comprised of a sliding member (1) made of a heat treated steel alloy a... | 03/24/2011 |
| 20100218383 | Levered blade actuator A levered actuator in a knife controls movement of the blade between open and closed positions. The knife includes a blade having a tang pivotally fixed to a liner of the knife handle. The blade is operatively coupled to a levered actuator by a blade pin which rides in ... | 09/02/2010 |
| 20090313765 | LETHAL OR NON-LETHAL SELF-DEFENSE BLADED TOOL A self defense tool comprising a generally S-shaped tool having at one end thereof a ring portion for finger placement. The handle portion is used for holding the S-shaped tool and the handle portion is located between the ring portion and a blade portion. The blade por... | 12/24/2009 |
| 20090293286 | Levered blade actuator A levered actuator in a knife controls movement of the blade from a closed position to an open position. The knife includes a blade having a tang pivotally coupled to a knife handle or a liner within the knife handle. The blade is operatively coupled to a levered actuat... | 12/03/2009 |
| 20090277015 | Release Button for Folding Knife In a folding knife in which a release button is used to lock the blade in the open and/or closed positions, and to release the blade from being locked, the release button has a shank portion that does not extend past the axial centerline through the button. The tang of ... | 11/12/2009 |
| 20090271988 | UTILITY KNIFE WITH COUNTER-RECIPROCATING BLADE AND GUARD A utility knife has a counter-reciprocating blade and blade guard. Preferred utility knifes have an internal mechanism comprising several components that are advantageously coupled via one or more pivot points. Though an appropriate arrangement of pivot points, both sta... | 11/05/2009 |
| 20090144985 | FOLDING KNIFE The present invention provides a fold knife comprising a handle and a blade hinged to the handle. The fold knife further comprises a switch mechanism for manual and semi-automatic operation which is positioned in the inner chamber of the handle. The switch mechanism for... | 06/11/2009 |
| 20080083118 | Knife blade opening mechanism A folding knife incorporates an opening assist mechanism that functions to drive the blade from the closed to the open position. The knife may be either automatic or semi-automatic. In one embodiment a pair of spring arms, one located to each lateral side of the blade i... | 04/10/2008 |
| 20070193036 | FOLDING KNIFE WITH MAGNETIC PIECE A folding knife is disclosed including a blade, a handle device, and a magnetic piece. The blade may be connected to the handle device so that the blade can pivot with respect to the handle device. The magnetic piece may be fixed to the handle device so that the magneti... | 08/23/2007 |
| 20070068000 | CLOSABLE KNIFE WITH OPENING MECHANISM A knife includes a handle and a blade coupled to the handle so as to be movable between an open position in which the blade extends from the handle, and a closed position, in which the blade is received within the handle. A detent mechanism is configured to resist movem... | 03/29/2007 |
| 20060248727 | Folding knife A folding knife having a blade-opening mechanism incorporated in the handle of the knife. The blade-opening mechanism in one form can be used to pivot the blade from the closed position to the open position by manually applying pressure to the blade-opening mechanism ra... | 11/09/2006 |
| 20060200996 | HAND TOOL A tool generally consisting of a handle, an implement pivotally connected to the handle, a first magnetic element mounted on the implement having a magnetic field of a selected polarity intersecting a path disposed circumferentially relative to the axis of the pivotal c... | 09/14/2006 |
| 20050132576 | Blade-assisting mechanism for a folding knife A folding knife is disclosed. The folding knife includes a handle; a blade connected to the handle in a manner allowing pivoting of the blade between a closed position in which the blade extends along the handle, and an open position in which the blade extends away from... | 06/23/2005 |
| 20050072004 | Opening assist mechanism for a folding knife A folding knife including an elongate handle and blade. A tang of the blade is pivotally connected to the handle proximate the front end of said handle such that the blade is rotatable about a rotational axis. A pin is positioned on and extends from the tang of the blad... | 04/07/2005 |