Abstract:
A bridging beam for bridging a weakened area of a pole to reinstate the pole. The beam includes a sleeve for abutting the external surface of the pole on an inner surface of the sleeve and an external brace extending outwardly from an outer surface of the sleeve. The brace is constructed to brace the sleeve in radial and tangential directions relative to the sleeve. The brace is formed as an elongate tubular box section.
Abstract:
A method of treating spent selective catalytic reduction (SCR) catalyst is provided, which method comprises contacting the spent catalyst with a solution comprising a SCR catalyst metal salt, preferably a vanadium salt, and heating the catalyst contacted with the metal salt solution at a calcination temperature in the presence of oxygen. Preferably, after treatment with the metal salt solution, the catalyst is dried with air for at least about 10 seconds and heated to a temperature in the range of about 130.degree. F. to about 170.degree. F. for a period of about 30 minutes to about 90 minutes before heating to the calcination temperature. In addition, a method is provided for restoring the catalytic activity of a SCR catalyst, contaminated with platinum, to enhance catalytic reduction of oxides of nitrogen to nitrogen by the SCR catalyst, said method comprising (a) contacting the spent catalyst with a metal salt containing solution; (b) then heating the catalyst in the presence of oxygen to a calcination temperature at which the metal salt is decomposed to form an oxide of the metal and the metal oxide is bonded to the catalyst support, to form a calcined catalyst; and, (c.) contacting the calcined catalyst with a SCR flue gas stream at a temperature in the range of about 450.degree. F. to about 750.degree. F. Calcination temperatures as low as 250.degree. F. are effective to restore SCR catalyst activity.
Abstract:
Fire escape for use in multi-storied building having floors spaced generally equally from adjacent floors at floor spacing. Fire escape has fire resistant, vertical, hollow outer column and similar inner column positioned generally centrally within outer column. Outer and inner columns have generally oval-sectioned inner and outer wall respectively spaced apart to provide columnar space therebetween. Chute within columnar space follows generally helical path of essentially constant pitch of twice floor spacing so that one complete circuit of chute passes two floors. In one embodiment for wide floor spacing, inner column is hollow and has column floors disposed therein level with floors outside outer column and spiral stairway spaced above chute to follow chute with sufficient head room for persons on the chute or stairway. Person escaping enters outer column through door opening, and can descend stairs directly; or through openings in inner column can descend by chute. In second embodiment for narrower floor spacing, a columnar space contains chute and stairway arranged side by side having equal helical pitches, stairway spaced outwards from chute. Dividing wall between chute and stairway prevents interference between persons using chute or stairway. Opening through outer column permits access to stairs, and opening through dividing wall permits access to chute. In both embodiments a second complementary chute and stairway can be provided so that each embodiment has four independent escape routes.
Abstract:
A distributor for permitting fluid to be sequentially distributed to a different regions, comprising co-axial relatively rotatable ported ring members, one of which is faced with a co-axial ported disc valve arranged in face-sealing relation with the other member and each member having fluid ports opening into its periphery. The members are constructed and arranged so that the direction of flow of fluid through the disc valve from one member to the other will be parallel to the common axis. The disc valve controls communication between the ports in one member and those in the other and the said members are maintained in face sealing relation when fluid under pressure is passing through the ports of the said members.
Abstract:
A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator.
Abstract:
A portable handheld wireless breath alcohol monitoring device (RBAM) utilizes facial recognition and automatic retesting if an initial test is positive for alcohol or of an initial facial match is negative. A location fix is captured with each breath test taken by an offender. After each breath test, the breath alcohol content (BrAC), date and time of the breath test, facial image data, and location fix are uploaded through a built-in cellular phone module in the RBAM to a monitoring station. The monitoring station evaluates each breath test and determines if immediate notification to a supervising agency is needed. If so, an email, text message, or page is sent to the supervising agency. RBAM enables the monitoring of lower-risk offenders or offenders who have earned the privilege of a less intrusive alcohol testing and monitoring program.
Abstract:
The invention relates to new quinoxaline derivative compounds, to pharmaceutical compositions comprising said compounds, to processes for the preparation of said compounds and to the use of said compounds in the treatment of diseases, e.g. cancer.