-
公开(公告)号:US3624367A
公开(公告)日:1971-11-30
申请号:US3624367D
申请日:1968-11-12
Applicant: GEN ELECTRIC
Inventor: HAMILTON STEPHEN B , KELLY ROBERT J JR , WELLS ROBERT C
CPC classification number: B64G1/26
Abstract: Technique, method and apparatus for obtaining optimized, selfadaptive, attitude control in space vehicles using on-off reaction motor propulsion for torquing the vehicle about its axes of attitude. Formulation to determine a time duration of known thrust to impart a calculated angular acceleration is based on angular velocities and is calculated from maximum permissible angular deviation, an appropriate lesser deviation, initial mass and initial thrust force as parameters and time as a universal variable. Technique provides for operation both in presence of and absence of directional bias forces and includes updating of data representing vehicle parameters. Disclosure includes one apparatus to accomplish the method by application of digital computation.
-
公开(公告)号:US3661817A
公开(公告)日:1972-05-09
申请号:US3661817D
申请日:1970-05-04
Applicant: GEN ELECTRIC
Inventor: HAMILTON STEPHEN B , BEERS MELVIN D , BERGER ABE , SELIN TERRY G
IPC: C07F7/12 , C07F7/18 , C08L83/04 , C09J183/04 , C08H9/00
CPC classification number: C08L83/04 , C07F7/12 , C07F7/1896 , C08G77/045 , C08G77/16 , C08G77/24 , C08G77/26 , C08G77/70 , C08L2666/44 , C09J183/04 , Y10S528/901
Abstract: ROOM TEMPERATURE VULCANIZING SILICONE ELASTOMERS ARE PREPARED BY THE ADDITION OF A NOVEL CROSS-LINKING AGENT SUCH AS ACETOXYPROPENYLENYLTRIACETOXYSILANE TO A SILANOL CHAIN-STOPPED POLYDIORGANOSILOXANE FLUID. THESE COMPOSITIONS ARE STABLE, FREE FLOWING FLUIDS IN THE ABSENCE OF MOISTURE BUT CURE TO A RUBBERY, SOLID ELASTIC STATE UPON EXPOSURE TO MOISTURE. THESE COMPOSITONS ARE PARTICULARLY USEFUL AS ADHESIVES IN DIFFCULT BONDING SITUATIONS SUCH AS ATTACHING GLASS WINDOW PANES TO ALUMINUM WINDOW FRAMES.
-