baber/WOPTO huggingface dataset:
Patent CN-114038777-B (CN)
Title: 一种半导体晶片测厚设备
IPC: H01L21/683
Filed: 2022-01-11
Granted: 2022-04-08
Abstract: 本发明涉及检测设备技术领域，具体涉及一种半导体晶片测厚设备，包括循环检测机构，所述循环检测机构包括检测箱，所述检测箱上固定设置有两个用于吸取晶片的吸持机构。本发明中，通过于半导体晶片测厚设备中的盒体两端均设置有吸持机构，使得两个夹持板能闭合，从而能通过两个夹持板夹持住半导体晶片或者晶圆进行夹持，从而能对半导体晶片或者晶圆对定位，确保晶片能在两个夹持板的中心位置处，这样能便于对晶片的中心点进行测厚，并且通过朝下吸持晶片能防止灰尘落到晶片或者晶圆的表面，从而能提高设备测厚的准确率，通过于半导体晶片测厚设备中设置有循环检测机构，形成一套循环的流程，这样能提高设备对多个晶片或者晶圆的检测效率。
Patent CN-114296310-B (CN)
Title: 柔性幕布及其制备方法
IPC: G03B21/58
Filed: 2022-03-08
Granted: 2022-06-24
Abstract: 本发明公开了一种柔性幕布及其制备方法，柔性幕布包括柔性幕布主体和弹性层，所述弹性层被拉伸后与所述柔性幕布主体相层叠结合，松开所述弹性层，所述弹性层发生拉伸回缩，带动所述柔性幕布主体的边缘向有弹性层的一侧弯曲。此时，柔性幕布主体在自然垂挂状态下呈现曲面投屏的效果，以适应大视野曲面投屏需求，达到更好的投影效果。
Patent CN-114384827-B (CN)
IPC: G05B19/04
Filed: 2022-03-23
Granted: 2022-06-14
Abstract: 本发明适用于计算机领域，提供了一种智能料理装置的控制方法及系统，所述方法包括：根据用户的偏好料理等级排名选定至少一种料理，获取对应的用户料理烹饪改善指令；当在预设时长内未检测到用户料理烹饪改善指令时，建立用户的好友烹饪信息交互通道；基于所述好友烹饪信息交互通道获取与选定的用户偏好料理相关联的好友烹饪建议信息，根据所述好友烹饪建议信息对自动烹饪的工作参数进行修改，依据修改后的工作参数控制智能料理装置工作，以实现对选定的用户偏好料理进行烹饪；自动记录所述工作参数修改后对应的烹饪信息，本发明的有益效果在于：智能性好，能够满足用户对于偏好料理的个性化改善需求。
Patent CN-114389438-B (CN)
IPC: H02M1/08
Filed: 2022-03-24
Granted: 2022-06-14
Abstract: 本发明公开了一种开关电源及其自适应驱动电路，该驱动电路包括：快速驱动模块，用于接收开关管控制信号，获取功率开关管的漏极检测信号和栅极检测信号，根据开关管控制信号、漏极检测信号及栅极检测信号确定第一驱动信号，及根据第一驱动信号对开关管的栅极充电；电荷泵驱动模块，用于接收开关管控制信号，获取时钟信号及功率开关管的漏极检测信号，根据开关管控制信号、时钟信号及漏极检测信号确定第二驱动信号，及根据第二驱动信号对开关管的栅极充电；快速驱动模块的充电速率大于电荷泵驱动模块的充电速率；功率开关管根据第一驱动信号和第二驱动信号导通或者关断。本发明通过硬件电路自适应调节功率管驱动方式，环境兼容性强，成本低。
Patent GE-P20063817-B (GE)
Title: Fused heterocyclic succinimi-decompounds and analogs hereof, modulators of nuclear hormone receptor function
Inventor: SALVATI MARK E
IPC: A61P17/10
Filed: 2002-12-18
Abstract: 1. Technical Result Increase in efficiency of treatment of nuclear hormone receptor-associated conditions. 2. Essence A compound of the formula wherein G, L, Z1, Z2, Q1, Q2, A1, A2, Y1 and W1 have values indicated in the description; said compounds and analogs thereof represent modulators of nuclear hormone receptor function and pharmaceutical compositions containing them are used in the treatment of cancer and immune disorders. 3. Field of Application Medicine.
Patent GE-P20063952-B (GE)
Title: Method for partheno-stimulation of live silkworm butterfly
Inventor: DZNELADZE ALEXANDER
IPC: A01K67/04
Filed: 2004-06-16
Abstract: A method comprises thermal treatment of live silkworm butterfly by water of temperature 46 degrees with holding during 18,5 minutes, secondary holding during 5-10min. in water of a room temperature and reception of parthenogenesis grain from a body of the butterfly by withdrawal of ovarioles and their washing in flowing water, drying of the received grain and its storage within 3 days in conditions of temperature 16 degrees С and humidity of 95-100 %
Patent GE-P20135730-B (GE)
Title: Trans-4-{2-[4-(2,3-dichlorophe-nyl)-piperazin-1-yl]-ethyl}-n,n-dimethylcarbamoyl-cyclohexylamine for treatment of schizophrenia
Inventor: LASZLOVSZKY ISTVAN
IPC: A61K31/495
Filed: 2008-05-19
Abstract: The present invention relates to use of (thio)-carbamoyl-cyclohexane derivatives, particularly, to trans-4-{2-[4-(2,3-dichlorophenyl)-piperazin-1-yl]-ethyl}-N,N- dimethylcarbamoyl-cyclohexylamine and pharmaceutically acceptable salts thereof for preparation of a medicament for schizophrenia treatment. Furthermore, the present invention relates to schizophrenia treatment by use of (thio)-carbamoyl-cyclohexane derivatives, particularly, trans-4-{2-[4-(2,3-dichlorophenyl)-piperazin-1-yl]-ethyl}-N,N-imethylcarbamoyl-cyclohexylamine and their pharmaceutically acceptable salts.
Patent GE-P20146025-B (GE)
Title: Chromenone derivatives as trpv3 antagonists
Inventor: KATTIGE VIDYA GANAPATI
IPC: C07D311/08
Filed: 2009-11-06
Abstract: There are represented compound of formula (II),    pharmaceutical composition on basis thereof, and application thereat the treatment of diseases caused by vanilloid receptor.               Table:   1
Patent GE-P20125619-B (GE)
Title: Vibrator
Inventor: TSULAIA HAMLET
IPC: F16F15/20
Filed: 2010-05-14
Abstract: A vibrator comprises a frame 1, active 2 and reactive 4 masses, a prismatic magnetic core 3 fastened on the active mass, a П-shaped magnetic core 5 fastened with the reactive mass and connected with a source of alternating voltage by means of a coil, packet springs 6 and elements connecting the frame with the spring in the points 12 where vibrations are minimal. The elements are made as transversal bars 11 linked with the frame by ends wherein vibroisolating cushions 10 are installed.
Patent GE-P20217267-B (GE)
Title: Wind energetical device turbine
Inventor: BATUMI STATE MARITIME ACADEMY
IPC: F03D1/06
Filed: 2019-02-13
Abstract: A turbine includes a shaft 1, a clew 2 having the manes 3 planted thereon, and curve or flat plate blades 4; at that, the blades are fastened inclined onto diametrically disposed manes, and are shifted relative to each other.
Patent DK-160051-C (DK)
Inventor: ACKER ROLF-DIETER
IPC: C07F7/10
Filed: 1981-01-23
Granted: 1991-06-10
Abstract: N-Methyl-N-silyl-carbamates of the formula   <IMAGE>   where R1 denotes hydrogen or unsubstituted or halogen-substituted alkyl of a maximum of 4 carbon atoms, R2, R3 and R4 are identical or different and each denotes alkyl of a maximum of 4 carbon atoms, and R5 denotes alkyl of a maximum of 4 carbon atoms or phenyl, processes for their manufacture, and their use for combating pests.
Patent CA-1292631-C (CA)
Inventor: IKEDA HIROYUKI
IPC: G03H1/20
Filed: 1983-02-21
Granted: 1991-12-03
Abstract: METHOD FOR CONSTRUCTING HOLOGRAMS     ABSTRACT OF THE DISCLOSURE     A method for constructing a hologram by use of a master hologram consisting of a predetermined pattern of inter-ference fringes formed thereon by optical interference of a plurality of constructing coherent light beams incident at different angles, comprising preparing a photosensitive medium in which the hologram is to be formed on the master hologram, and copying the master hologram onto the photo-sensitive medium by impinging copying light beams on the master hologram at an incident angle different from those of the constructing beams.
Patent CA-1269258-C (CA)
Title: Apparatus for cleaning in particular teeth
Inventor: GHEDINI LUIGI
IPC: A61C3/025
Filed: 1985-02-25
Granted: 1990-05-22
Abstract: APPARATUS FOR CLEANING IN PARTICULAR TEETH ABSTRACT OF THE DISCLOSURE Disclosed herein is an apparatus for cleaning in particular teeth, that operates in accordance with the mechanical sandblasting principle and is equipped with a barrel provided with a multiple nozzle, and with means of connection identical to those of a dentistry turbodrill. In order to obtain a gas-powder mixture that is permanently constant or, through control means, is rendered variable, the handgrip of the barrel is fashioned hollow and divided into a receiving chamber, a swirl precombustion chamber and a swirl chamber communicating via elements having a calibrated passage hole. The powder and a small quantity of gas are inserted into the receiving chamber, while the major quantity of gas in inserted into the swirl precombustion chamber through a powder percentage regulator.
Patent CA-1282279-C (CA)
Title: Rotary screen printing apparatus
Inventor: CONINGSBY A ROBERT
IPC: B41F17/18
Filed: 1985-11-15
Granted: 1991-04-02
Abstract: ABSTRACT A screen printing drum and machine including said drum for applying a coating to various shaped substrates, more particularly, slender-like substrates, more particularly writing implements.
Patent CA-1296595-C (CA)
Title: Emulsifiable triglyceride compositions
Inventor: MARTINO GARY T
IPC: C07C233/18
Filed: 1986-06-06
Granted: 1992-03-03
Abstract: ABSTRACT OF THE DISCLOSURE     Water dispersible, self-emulsifiable triglyceride compositions are provided.  The compositions comprise the reaction product of a) a triglyceride oil/olefinic acid (or anhydride) addition product and b)  a water soluble monofunctional polyalkylene oxide.
Patent CA-1275418-C (CA)
Title: Process for the preparation of n-substituted aminomethylphosphonic acids
Inventor: MILLER WILLIAM H
IPC: C07F9/40
Filed: 1986-09-22
Granted: 1990-10-23
Abstract: ABSTRACT OF THE DISCLOSURE A process for the preparation of an N-substituted aminomethylphosphonic acid represented by the formula: wherein R1 is alkyl or carboxylakyl, and R2 is carboxyalkyl, is disclosed. The process comprises: preparing a mixture of an aqueous acidic medium comprising phosphorous acid; an acid selected from the group consisting of sulfuric acid, hydrochloric acid and hydrobromic acid; and a substituted substrate compound represented by the formula: wherein R1 and R2 are as defined above, Y is oxygen or sulfur, and R3 is selected from the group consisting of alkyl and carboxyalkyl; heating the mixture to a temperature between about 70°C and 120°C; and thereafter slowly adding formaldehyde to the mixture.
Patent CA-1281163-C (CA)
Title: Wall header
Inventor: SMOLIK ROBERT A
IPC: E04B2/74
Filed: 1986-10-09
Granted: 1991-03-12
Abstract: ABSTRACT OF THE DISCLOSURE       Wall construction including a wall header for mounting appliances, such as sinks, shelves, electrical receptacle boxes and the like on a wall.  Parallel, C-shaped cross-sectional wall studs have major side members provided with vertically aligned mounting openings at regularly spaced intervals along the length thereof.  The wall header includes a body having a flat front face for disposition relatively flush to the mounting plane defined by the wall studs, first and second mounting fingers extended from a first end, and third and fourth mounting fingers extended from a second end of the body.  The mounting fingers engage mounting holes and are bent over the edges of the holes to secure the body in place.  One end of the body has a peripheral recess.  The purpose of the peripheral recess is to accommodate the inwardly turned lip portion usually associated with metal wall studs used in construction.  The peripheral recess permits flush installation of the wall header with respect to the mounting plane defined by the wall studs.
Patent CA-1278028-C (CA)
Title: Method and circuit arrangement for the drive of a stepping motor
Inventor: DOELVES JUERGEN
IPC: H02P8/04
Filed: 1986-12-19
Granted: 1990-12-18
Abstract: ABSTRACT OF THE DISCLOSURE           A method and circuit for driving a stepping motor which is driven by a motor clock output having a time variable frequency.  So as to generate the time varying frequency, the constant frequency of a basic clock output is divided by constant first factor and is multiplied by a time variable second factor which is in the range between zero and the first factor.  A transfer clock sequence is derived from the basic clock output by a division factor.  The second factor is changed by a prescribed increment with the frequency of the transfer clock output at the respective clock times and this prescribed increment determines the frequency change of the motor clock output per clock interval.  In this manner, the unavoidable frequency discontinuities can be maintained small and constant over the full frequency range of the motor clock output even without a high frequency of the basic clock output whereby a reliable run-up and a reliable breaking of the stepping motor are assured without stepping errors.
Patent CA-1289287-C (CA)
Title: Ethylene polymer compounds, their preparation and their use for the production of industrial articles
Inventor: AUDUREAU JOEL
IPC: C08L23/04
Filed: 1986-12-23
Granted: 1991-09-17
Abstract: PCT No. PCT/FR86/00438 Sec. 371 Date Oct. 6, 1987 Sec. 102(e) Date Oct. 6, 1987 PCT Filed Dec. 19, 1986 PCT Pub. No. WO87/03888 PCT Pub. Date Jul. 2, 1987.The compositions contain: (a) from 90 to 99.8% by weight of at least one modified polymer of ethylene and, where appropriate, at least one  alpha -olefin having from 3 to 12 carbon atoms, the said polymer containing at least 80 mol % of units derived from ethylene, and (b) from 0.2 to 10% by weight of at least one polymer phase (B) comprising at least one polymer containing at least 90 mol % of units derived from at least one  alpha -olefin having from 3 to 12 carbon atoms, and at most 10 mol % of units derived from ethylene, the said compositions having a measured limiting viscosity of between 1.5 and 100 times their limiting viscosity calculated from the distribution of the molecular masses. The process for preparing them consists in modifying a polymer (A) containing at least 80 mol % of units derived from ethylene and at most 20 mol % of units derived from at least one  alpha -olefin having from 3 to 12 carbon atoms, by means of at least one free-radical initiator brought into contact with the said polymer (A) at a temperature above the melting point of the said polymer (A) for a time longer than or equal to one tenth of the half-life of the said initiator at the temperature in question, and is characterized in that the free-radical initiator, prior to being brought into contact with the polymer (A), is dispersed in at least one polymer phase (B) present in an amount such that its proportion in the resulting composition is between 0.2 and 10% by weight.
Patent CA-1290256-C (CA)
Inventor: BAUSCH PAUL
IPC: B60K17/348
Filed: 1987-04-02
Granted: 1991-10-08
Abstract: F-1,662 FOUR-WHEEL DRIVE VEHICLE      Abstract of the Disclosure A four-wheel drive vehicle has a permanently driven axle.  A planetary gear set and viscous clutch are located in the power train leading to the second axle.  The annular gear of the planetary gear set is mounted rotatably and can be stopped by means of a brake band.  When the brake band is tensioned, the four-wheel drive, which is running via the viscous clutch, is in the state of readiness, while it is ineffective when the brake band is released.
Patent CA-1329197-C (CA)
Title: 1,7-substituted heptyne-2-ones
Inventor: RZESZOTARSKI WACLAW J
IPC: C07C225/18
Filed: 1987-06-26
Granted: 1994-05-03
Abstract: 1,7- SUBSTITUTED HEPTYNE-2-ONES                 ABSTRACT OF THE DISCLOSURE   1-phenyl-1-hydroxy or fluoro-hept-5-yn-2-ones substituted with a C1 to C7 alkyl, C3 to C6 cycloalkyl, aryl, heteroaryl or heterocycloalkyl  group  at  the  1-position  and  an  amino,  a dialkylamino, a piperidyl, a pyrrolidyl or a hexahydroazepinyl group at the 7-position are disclosed.  The preferred compounds are,  1-cyclohexyl-1-phenyl-1-hydroxy-7-dimethylaminohept-5-yn-2-one, 1-cyclohexyl-1-phenyl-1-hydroxy-7-methylaminohept-5-yn-2-one and1-cyclohexyl-1-phenyl-1-hydroxy-7-ethylaminohept-5-yn-2-one. The  compounds  are highly specific M1-AChR antagonists with relatively prolonged duration of activity.  They are particularly useful in the treatment of neurogenic bladder disorders and may be  administered  orally  or  parenterally  in  conventional formulations containing optional conventional additives such as binders, surfactants, emulsifiers, flavorants, preservatives and the like.
Patent CA-1281879-C (CA)
Inventor: LEIS RUDOLF
IPC: E04F15/02
Filed: 1987-07-07
Granted: 1991-03-26
Abstract: ABSTRACT         A composite panel consists of a natural stone layer (1) and a reinforcing layer (13) that has a fibre layer (2) embedded in synthetic resin, and at least one layer (3) of synthetic resin.          The fibre layer (2) serves as tensile reinforcement and the layer (3) of synthetic resin serves as compression reinforcement for the natural stone layer (1), so that the composite panel can absorb both positive and negative bending moments.  The synthetic resin layer (3) is reinforced, for example, with a fine-mesh glass fibre textile (6) that faces towards the tensile reinforcing fibre layer (2) and an adjacent glass fibre mat (8).  In order to produce the composite panels, natural stone panels that have been cut to a greater thickness are coated on both sides with the reinforcing layer (13).  A plurality of coated natural stone panels are then arranged so as to be equally spaced on their centre planes, and then simultaneously divided.
Patent CA-1341230-C (CA)
Title: Amino acid sequence of l-phenylalanine ammonia-lyase, structural gene thereof, novel dna sequence containing same, novel recombinant dna plasmid containing same transformant formed therewith, and process for the production of l-phenylalanine by using same
Inventor: NAKAJIMA YOSHIYUKI
IPC: C12N1/16
Filed: 1987-09-14
Granted: 2001-05-15
Abstract: The structural gene for L-phenylalanine ammonialyase (PAL) and the amino acid sequence of PAL have been elucidated in Rhodosporidium toruloides, and novel recombinant DNA plasmids (e.g., pSW101, pYtrp6 and pKY201) have been created by inserting a DNA strand coding for the PAL gene between the 3'-terminus of the promoter region and the 5'-terminus of the terminator region. Moreover, transformants having such a novel recombinant DNA plasmid have been created, and a process for the production of PAL by growing such a novel transformant so as to cause PAL to be produced and accumulated in the culture has been established. PAL is useful in the production of L-phenylalanine, an essential amino acid used in the manufacture of artificial sweeteners. There is disclosed a novel technique for the production of L-phenylalanine by reacting an ammonia donor with cinnamic acid in the presence of the PAL prepared by the aforesaid novel process.
Patent CA-1340177-C (CA)
Title: Cylindrical air filter with lightweight housing and radially directed seal
Inventor: GIESEKE STEVEN S
IPC: B01D46/24
Filed: 1987-09-15
Granted: 1998-12-08
Abstract: An  air  filter  including  a generally  tubular filter  element  having  an open  air outlet  end  and  a closed end is provided with a molded ring-like end cap of  a soft elastomer material.   A tubular air outlet member is mounted in the open end of the filter element with the end cap having a radially inwardly facing surface constructed so as to be compressed to sealingly engage the outlet member to block flow of contaminated air  therebetween.    A  housing  having  an  air  inlet surrounds the filter element to provide an air distribution chamber for incoming contaminated air.
Patent CA-1279361-C (CA)
Title: Drive system
Inventor: BEISIEGEL DIETHELM
IPC: D21F5/02
Filed: 1987-09-25
Granted: 1991-01-22
Abstract: DRIVE SYSTEM              ABSTRACT OF THE DISCLOSURE A journal of a drying cylinder or the like, in a paper, cardboard or coating machine, is mounted in a bearing housing which is supported in fixed position on a frame.  A hollow, cylindrically widened housing for an electric drive motor is formed as an extension of the bearing housing toward the drying cylinder. This motor housing, together with the bearing housing, forms a continuous outer surface for the drive system. The motor is a permanent-magnet motor whose stator has electromagnet poles which are arranged in the hollow cylindrical housing.  Its rotor has permanent-magnet poles, which form a hollow cylindrical ring mounted on the circumference of the journal.  The drive system consists of only a few parts, requires only a small amount of space for installation, and is easily and inexpensively serviceable.
Patent CA-1285223-C (CA)
Title: Detection of vascular disease
Inventor: LEES ROBERT S
IPC: A61K51/10
Filed: 1987-11-03
Granted: 1991-06-25
Abstract: Abstract of the Disclosure Vascular diseases including asymptomatic atherosclerosis can be diagnosed by administering a conjugate diagnostic reagent to a patient and then detecting the location and concentration of the conjugate reagent within the patient's vascular system.  The conjugate reagents have a target-seeking, biologically active molecule as one component and a labeling means capable of extracorporeal detection as the other component.  The biologically active molecules (BAMs) are chosen to have affinity for structural elements of the arterial wall which are either not present in the normal wall but are found in atherosclerotic or arteritic lesions, or which are not available to the blood-borne reagent within normal arterial walls, but are exposed to the reagent in atherosclerotic or arteritic lesions.
Patent CA-1283170-C (CA)
Title: Structure for hall device
Inventor: LARSEN JAMES W
IPC: H01L43/06
Filed: 1987-11-20
Granted: 1991-04-16
Abstract: IMPROVED STRUCTURE FOR HAL  DEVICE      ABSTRACT OF THE DISCLOSURE A Hall device is formed from a generally rectangular body of material exhibiting the Hall effect, with two excitation electrodes disposed along opposite edges of the device.  Two Hall output voltage electrodes are disposed along one of the remaining edges of the main body and at least one additional output electrode is disposed on the edge of the main body opposite the first pair of electrodes.  At least two of the output electrodes are offset from a centerline drawn through the electrical midpoint of the main body.  By deliberately offsetting the Hall voltage output electrodes from the centerline the first and second order voltage offsets due to inhomogeneities of the Hall material and mask misalign-ment are eliminated or easily compensated.
Patent CA-1288368-C (CA)
Title: Enzymatic detergent composition
Inventor: DE JONG HENDRIK E
IPC: C11D3/386
Filed: 1987-12-08
Granted: 1991-09-03
Abstract: ABSTRACT OF THE DISCLOSURE            The invention relates to a detergent composition on the basis of nonionic detergents, which includes a mixture of certain lipolytic enzymes and proteases. In this composition, the lipases remain unaffected by the proteases.
Patent CA-1309637-C (CA)
Title: Compositions and processes for the continuous production of transparent soap
Inventor: JUNGERMANN ERIC
IPC: C11D13/00
Filed: 1987-12-30
Granted: 1992-11-03
Abstract: ABSTRACT OF THE DISCLOSURE      Compositions and processes for the continuous production of transparent soap which provides an enhanced product and at a lower unit cost than heretofore obtainable.  Stoichiometrically balanced blends are passed through a series of preheated mixing tanks into molds which are thereafter chilled to solidify the individual bars.
Patent CA-1303622-C (CA)
Inventor: NERI CARLO
IPC: C07B63/00
Filed: 1988-02-12
Granted: 1992-06-16
Abstract: 1.     "ORGANIC PHOSPHITES RESISTANT TO HYDROLYSIS,  AND PROCESS FOR PREPARING THEM"                  Abstract Solid  organic phosphites in powder  form,  used  to endow organic polymers with stability characteristics are made  resistant  to  hydrolysis by treating  said  powder phosphites  with a silane containing in its  molecule  at least  two  alkoxy  groups  and  causing  the  silane  to hydrolyze,   and   the  formation  and  deposition  of  a siliconic  polymer on the surface of powder particles  to occur.
Patent CA-1312960-C (CA)
Inventor: GRONDALSKI ROBERT S
IPC: G06F15/173
Filed: 1988-02-23
Granted: 1993-01-19
Abstract: ABSTRACT OF THE DISCLOSURE    An array processing system including a plurality of processing elements each including a processor and an associated memory module, the system further including a router network over which each processing element can transfer messages to other random processing elements, a mechanism by which a processor can transmit data to one of four nearest-neighbor processors.  In addition, the processing elements are divided into groups each with four processing elements, in which one of the processing elements can access data in the other processing elements' memory modules.  The routing network switches messages in a plurality of switching stages, with each state connecting to the next stage through communications paths that are divided into groups, each group, in turn being associated with selected address signals.  A communications path continuity test circuit associated with each path detects any discontinuity in the communications path and disables the path.  Thus, the stage may attempt to transfer a message over another path associated with the same address.
Patent CA-1326378-C (CA)
Inventor: CANTY THOMAS M
IPC: B01J3/00
Filed: 1988-03-03
Granted: 1994-01-25
Abstract: Abstract A safety viewing window for observing the interior of a pressure vessel is the subject of this invention.  This viewing window is made up of an optically clear window disc fused to a metal frame.  A laminate is overcoated over the fused disc and frame to provide a corrosion resistant viewing window.  The metal frame has attached to it brackets for securing the entire unit to the vessel in a pressure tight manner.