Abstract: A safety scalpel blade assembly comprising a scalpel blade, a guard which extends at least about the cutting edge of the blade, and releasable attachments device which releasably attach the blade to the guard as the assembly is being attached to the scalpel handle, thereby preventing the blade from cutting a person, but which releases the blade from the guard when the blade is attached to the blade carrier of the scalpel handle.
Type:
Grant
Filed:
March 21, 2001
Date of Patent:
October 7, 2003
Assignee:
Occupational & Medical Innovations PTY LTD
Abstract: A method of NMR (nuclear magnetic resonance) excitation of a sample having a magnetic moment, including, applying a longitudinal magnetic field to the sample; and changing the magnetic moment in a substantially continuous manner by moving an effective magnetic-field vector &ohgr;e more than 90°, wherein for all portions of the sample in which the moment is changed, the angular velocity of the effective field vector at at least one angle, 90°+&agr;, is different from the angular velocity at 90°−&agr;.
Type:
Grant
Filed:
August 22, 1997
Date of Patent:
August 27, 2002
Assignee:
GE Medical Systems
Inventors:
Daniel Rosenfeld, Shimon L. Panfil, Yuval Zur
Abstract: Polymer bound hindered amine light stabilizers are prepared by reacting hindered amine light stabilizers containing reactive hydrazide functionalities with anhydride containing polymers or copolymers. The reactions may be carried out in an inert solvent or in a melt blending step. The polymer bound hindered amine light stabilizers are useful alone or may also be used to stabilize other polymers, copolymers or polymers blends against the deleterious effects of heat and/or light.
Type:
Grant
Filed:
July 16, 1991
Date of Patent:
November 15, 1994
Assignee:
Atochem North America, Inc.
Inventors:
Robert T. Kazmierzak, Ronald E. MacLeay