baber/WOPTO huggingface dataset:
Patent SE-465097-B (SE)
Title: Method of detecting and determining the content of methane gas in air and a methane gas detector for implementing the method
Inventor: JOENSSON A
IPC: G01N21/3504
Filed: 1989-11-29
Abstract: Methane gas detector based on the property of methane gas of, when irradiated with infrared light, absorbing light with wavelengths which coincide with the absorption lines of the gas. The light reflected from a gas sensor 4 is conducted to a narrow-band filter 6 corresponding to the absorption line of the gas, after which the light transmitted is detected 7 and forms a measurement value. The light which is not transmitted is reflected and is conducted to a broad-band filter 10 centred around the absorption line of the methane gas, after which the transmitted light is detected 11 and forms a reference value. A measure of the methane gas content is obtained by subtracting the measurement value from the reference value. <IMAGE>
Patent SE-468601-B (SE)
Inventor: NILSSON HARRY
IPC: D21D1/34
Filed: 1991-04-12
Abstract: Appts. comprises apertured stator shoes coacting with an apertured rotor, stator shoes and the rotor being between suspension inlet and outlet of the beating appts. Guides laterally confine the suspension which has been beaten and is flowing to the outlet of the appts. Pref. stator shoes are inside or outside the rotor, and the guides which laterally confine the beaten suspension are mounted on the stator shoes. Pref. stator shoes inside the rotor laterally confine ingoing unbeaten suspension fed into them.
Patent SE-469240-B (SE)
Inventor: PERSSON E
IPC: F16L21/035
Filed: 1991-12-23
Abstract: In a method for securing an elastic, circumferential seal (1) on a tubular element (2), a base portion (4) of the seal (1) is applied against the tubular element (2), whereupon a clamping strap (7) is tightened on the base portion (4) to clamp this portion against the tubular element (2) with sealing lips (5) projecting therefrom. The clamping strap (7) and thus the seal (1) are anchored by a pointed, piercing rivet (12, 13) being driven through the clamping strap (7), the base portion (4) and the wall of the tubular element (2), and upset against a fixed abutment (9). During the upsetting operation, the rivet shank (13) forms a bulge (17) whose transverse dimensions exceed the transverse dimension of the hole which is pierced through the wall of the tubular element (2) by the rivet (12, 13), whereby the rivet and the seal are prevented from being pulled off the tubular element. A device for carrying out the method comprises, in addition to the above-mentioned components, a stamping means and, cooperating therewith, an abutment means (9-11). <IMAGE>
Patent ZA-9210108-B (ZA)
Title: Composition containing hypocariogenic hydrogenated saccharide, process for preparing it and the application of this composition
Inventor: CABOCHE JEAN-JACQUES
IPC: A23L27/30
Filed: 1992-12-30
Abstract: Low-cariogenic hydrogenated saccharide composition usable as sweetening composition or as a texture agent in food products and in certain pharmaceutical or veterinary products. This composition is characterised in that it has a hydrogenated monosaccharide content of 0.1 to 80 %, a hydrogenated disaccharide content of 0.1 to 96 %, a hydrogenated mono- and disaccharide content of 11 to 96 %, a content of 1 to 40 % of polysaccharides which cannot be hydrolysed by amyloglucosidase, the remainder to 100 % consisting of hydrogenated oligosaccharides or polysaccharides.
Patent CN-1011381-B (CN)
Inventor: YAMAGUCHI KENSHO
IPC: A23L7/196
Filed: 1986-02-25
Abstract: 本发明提供一种制作干燥预熟粮谷，特别是制作快熟食品的工艺，该工艺能够得到用热水复原的、并在复原后味道比其它干燥谷物好的干燥预熟粮谷。制作干燥预熟粮谷的工艺包括；对预熟粮谷既进行高温水浸处理又进行低温水浸处理，以便使其水分为73-84(重量)%，然后进行干燥。
Patent CN-1011990-B (CN)
Title: 制品电镀锌的方法
Inventor: BLINOV VASILY MIKHAILOVICH
IPC: C25D3/22
Filed: 1987-07-10
Abstract: 本发明涉及电镀，更确切地说，涉及钢的或锌、铝合金制品的电镀锌方法。本方法在于：在阴极电流密度0.01-100A/dm 2 作用下，使锌从碱性镀锌电解质水溶液中沉积到上述制品的表面，电解质含有5-20克/升氧化锌，50-200克/升苛性钠，2-6克/升有机添加剂，后者是用聚合20-70%的二甲基二烯丙基氯化铵或溴化铵的水溶液所得到的产物，聚合在聚合引发剂——二氧化硫或二氧化硒的存在下进行，温度为85-115℃。
Patent FI-114913-B (FI)
Inventor: DUCHARME YVES
IPC: C07C323/29
Filed: 2001-12-19
Granted: 2005-01-31
Abstract: The invention encompasses the novel compound of Formula I useful in the treatment of cyclooxygenase-2 mediated diseases.The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising compounds of Formula I.
Patent FI-119196-B (FI)
Inventor: TUOMINEN KARI
IPC: E04C3/07
Filed: 2002-05-29
Granted: 2008-08-29
Abstract: A steel beam arranged to serve together with concrete as a bearing composite structure for various slab systems, the composite structure comprising a base plate (1) and two web parts (2, 3) arranged side by side at a distance from each other and joined at first ends by means of a horizontal top part (4). The base plate (1), web parts (2, 3) and horizontal top part (4) are arranged to form a space that can be filled with concrete. At least one web part (2, 3) is made of a plate part formed of two longitudinal parts (2a, 2b, 3a, 3b) of the beam that are at an angle to each other. The plate part is fastened to the base plate (1) and top part (4) in such a manner that the lower part (2a, 3a) of the web part (2, 3) is at an angle to the base plate (1) and the upper part (2b, 3b) is substantially perpendicular to the base plate (1).
Patent FI-123826-B (FI)
Inventor: XIA JILIANG
IPC: B01F27/91
Filed: 2012-02-20
Granted: 2013-11-15
Abstract: The invention relates to a blade (4) of an axial flow impeller (1). Dimensioning rules for the blade (4) are presented: A = 0,2R; B = 0,2Wb; C = 0,2R; D = 0,2Wb;E = 0,5R; F = (0,1...0,2)R; G = 0,2Wb; H = 0,25R; I = 0,1R; J = 0,4R; K = 0,1Wb. The first angle alpha = 6º ± 1º, the second angle alpha2 = 8º ± 1º and the third angle alpha 3 = 19º to 25º. R is the lengthwise dimension from the axis of rotation (x) of the impeller to the tip (7) of the blade (4). Width Wb is the widthwise dimension of the blade perpendicularly to the lengthwise direction. The invention also relates to an axial flow impeller (1) having said blades (4).
Patent HK-1054595-B (HK)
Title: A method of operating a ticketing system
Inventor: BOYD LESLIE FERGUS
IPC: G06Q10/00
Filed: 2003-07-15
Abstract: A method of operating a ticketing system comprises generating data representing ticket information and transmitting the same for reception by a mobile station over a mobile communications network link. Data from the mobile station can then be used to verify a transaction.
Patent HU-180417-B (HU)
Title: Catgut strings having improved knotting characteristics and pulling the live tissues just slightly
Inventor: PERCIACCANTE VINCENT A
IPC: D06M101/16
Filed: 1977-09-20
Abstract: The surgical suturing material is characterised by a multi-filament polymer strand. In order to improve the knot running properties and the handling, the strand is provided with a thin, greasy coating. The coating comprises a greasy, biologically absorbable copolymer having polyoxyethylene blocks and polyoxypropylene blocks. The copolymer has a molecular weight such that it is pasty to solid at 25 DEG C.
Patent HU-178370-B (HU)
Title: Connecting device for heating boilers
Inventor: VIESSMANN HANS
IPC: F24H9/00
Filed: 1978-07-06
Abstract: Connecting arrangement for a heating boiler, in whose water-bearing sheet-steel housing is arranged an installation casting consisting of a combustion chamber and fuel-gas ducts. For having a good and simple connection between the sheet-steel housing and the installation casting the improvement consists in that the front and rear wall of the sheet-steel housing are provided with an access opening and the opening edges are bent in the form of a collar, the inside diameter of the collar being rather smaller than the outside diameter of the seating faces of the installation casting and the front and rear wall being connected to the seating faces by a press fit.
Patent IL-230021-B (IL)
Title: A catheter with an enhanced pushability
Filed: 2013-12-18
Abstract: A urinary catheter of enhanced pushability, for indwelling introduction into a patient's urethra having an effecter within the longitudinal bore of the catheter near its distal end to facilitate an easy introduction of the catheter into the body.
Patent IT-1245916-B (IT)
Title: Device for wrapping reams of paper
Inventor: DALL OMO DAVIDE
IPC: B65G/
Filed: 1991-05-24
Granted: 1994-10-25
Abstract: In this device, lifters 3 of reams 2 are such that at least their active portion 7 on which the ream 2 rests is shaped to deform or curve in a stable manner, in the concave direction, the said ream while the ream is being lifted, wrapped and closed, the ream thus presenting, in cross section, a smaller wrapping perimeter than the wrapping perimeter of a packing sheet 5 wrapped around the ream in the flat configuration. Above it are means 8 for holding the ream 2 on both sides in the concave deformed configuration, which means allow the ream 2 to be passed from the latter station towards the machine exit and then release it so that it relaxes and places the packaging sheet 5 under tension. (Fig. 1) <IMAGE>
Patent IT-1260394-B (IT)
Title: Device for feeding yarn to a textile machine
Inventor: SCIACCA FRANCO
IPC: B65H/
Filed: 1992-03-06
Granted: 1996-04-05
Abstract: In its present state, the market offers yarn feeders of the type known as positive and feeders of the turn accumulation type; these devices generally meet textile needs which differ from each other and are therefore incompatible. This invention concerns a yarn feeder device particularly suitable for knitting and hosiery machines, suitable for meeting many needs, at a reasonable price and with easy operation. The yarn coming from the reel winds appropriately around a rotating shaft with conical sections; the yarn changes its position on the variable diameter of the cone by means of a moving guiding slit, thereby varying the speed of movement on the basis of the density of the knit produced. During the winding phase around the rotating shaft, the yarn passes through another mobile guiding slit which is subject to the tension or inaction of the yarn being worked and/or not worked and changes its position with respect to the shaft. <IMAGE>
Patent IT-1251596-B (IT)
Title: Automatic computerised system for identification and picking-out of individual products (in packages or loose) from a remote storage and for transporting them to the final destination
Inventor: CATTANI MARZIO
IPC: A47F/
Filed: 1991-10-03
Granted: 1995-05-17
Abstract: When a product is requisitioned, this results in the identification of the co-ordinates of the bay containing the product itself. With two horizontal-vertical displacements, the system brings the arm into the requested position. The arm is inserted into the bay of the rack until it encounters the product, and then with a pneumatic grasping system or the hooking of a driving plate it is extracted from the bay; it is then deposited on a plate integrated with the vertical slide, by which it will then be handed off to the conveyor belt system until it reaches the programmed destination. <IMAGE>
Patent IT-1260415-B (IT)
Title: Procedimento e dispositivo per estrudere
IPC: B21C29/04
Filed: 1992-11-27
Granted: 1996-04-05
Abstract: Procedimento e dispositivo per estrudere, con un recipiente, specialmente di acciaio per lavorazioni a caldo comprendente una boccola interna, almeno una parte esterna, disposta in sostanza concentricamente attorno alla boccola interna ed eventualmente almeno una boccola intermedia, le quali parti sono dotate di dispositivi di riscaldamento oppure di raffreddamento, laddove il materiale di estrusione, che riscaldato, con un pistone di pressione viene estruso dalla boccola interna frontalmente per mezzo di una matrice di foggiatura per cui il recipiente nel ciclo di pressatura viene sollecitato meccanicamente, in cui per minimizzare gli sforzi di trazione, che si verificano in esercizio nella zona vicino alla superficie in corrispondenza dei lati minori dell'apertura della boccola interna, gli sforzi di pressione, rispettivamente contrazione, fra i cicli di
Patent IT-1263903-B (IT)
Title: Profilo di mantello guidafoglio per cilindri da stampa
IPC: B41F30/02
Filed: 1993-02-12
Granted: 1996-09-05
Abstract: L'invenzione concerne un profilo guidafoglio di cilindri da stampa, preferibilmente per cilindri di contropressione oppure cilindri di trasferimento dei fogli in macchine da stampa su foglio per la stampa della bianca e la stampa della volta. Il compito è quello di sviluppare un profilo esente da insudiciamenti, le cui parti di sostegno rimangono costanti anche in presenza di usura naturale. Ciò viene risolto mediante un profilo (3) di mantello di cilindro, il quale profilo presenta sporgenze (4) cilindriche distribuite statisticamente uniformemente, le quali sono disposte perpendicolarmente rispetto alla superficie di mantello del cilindro da stampa e con le loro superfici di copertura (5) sono disposte parallele in piano rispetto all'asse del cilindro. La lunghezza (L) di cilindro delle sporgenze (4) cilindriche ammonta in tal caso a 20 fino a 200 um e la finezza di reticolo ammonta a
Patent IT-1273338-B (IT)
Title: Combinazione di materiali per dispositivi erogatori di mercurio metodo di preparazione e dispositivi cosi' ottenuti
Inventor: SCHIABEL ANTONIO
IPC: H01J61/28
Filed: 1994-02-24
Granted: 1997-07-08
Abstract: Una combinazione erogatrice di mercurio atta a rilasciare quantità di mercurio superiore al 60% durante la fase di attivazione, anche dopo parziale ossidazione, comprende un composto intermetallico A dispensatore di mercurio con Hg ed un secondo metallo scelto tra Ti, Zr e loro miscele, nonché una lega o un composto intermetallico B promotore comprendenti Cu ed un secondo metallo scelto tra Sn, In o Ag o loro combinazioni. Viene descritto anche un dispositivo erogatore di mercurio che contiene una combinazione dei materiali A e B, oltre ad un procedimento per l'introduzione di mercurio all'interno di tubi elettronici consistente nell'inserire nel tubo aperto uno di tali dispositivi riscaldandolo poi per liberare Hg ad una temperatura compresa tra 550 e 900°C dopo la chiusura del tubo.
Patent IT-1273580-B (IT)
Inventor: CITTADINI PAOLO
IPC: B29C41/22
Filed: 1995-04-19
Granted: 1997-07-08
Abstract: PCT No. PCT/EP96/01583 Sec. 371 Date Oct. 20, 1997 Sec. 102(e) Date Oct. 20, 1997 PCT Filed Apr. 11, 1996 PCT Pub. No. WO96/33060 PCT Pub. Date Oct. 24, 1996A process for forming such manufactured items as imitation leather, or the like, from thermoplastic materials, thermosetting materials or elastomers, having at least one foamed layer, characterized in that said process comprises the following steps: a) forming, inside a mold for slush molding, a first layer of material which will constitute the top (i.e., the visible) layer of the finished manufactured item, b) by means of a further slush molding step forming a second layer, of foaming material, on said first layer, c) under high temperature conditions, completing the consolidation by gelation of said layers and foaming said second layer, by suitable means, in order to obtain predetermined thicknesses and shapes of said foamed layer, with the so formed layered material a backing means made from a rigid material being coupled, wherein said suitable means for obtaining predetermined thicknesses and shapes of said foamed layer are constituted either by a counter-mold or by said backing means made of rigid material.
Patent IT-1244999-B (IT)
Title: Sistema di sospensione
Inventor: MAKITA NAOKI
IPC: F16F9/084
Filed: 1991-01-18
Granted: 1994-09-13
Abstract: Sistema di sospensione comprendente un corpo ammortizzatore, un'asta di stantuffo che sporge verso l'alto dall'estremità superiore del corpo ammortizzatore, e un supporto che è previsto sulla parte terminale sporgente dell'asta di stantuffo per fissare la parte terminale sporgente ad un corpo di veicolo. Il supporto comprende un primo elemento di supporto che è fissato all'asta di stantuffo, un secondo elemento di supporto che è fissato al corpo del veicolo, e un supporto di gomma che è previsto fra il primo e il secondo elemento di supporto, il supporto di gomma avendo una coppia di parti a parete spessa e a parete sottile diametralmente opposte. Il sistema di sospensione comprende inoltre elementi di impegno ai quali è fissato in modo sganciabile un elemento di fermo per trattenere la parte a parete spessa del supporto di gomma in uno stato di compressione.
Patent IT-1257301-B (IT)
Title: Dispositivo di accoppiamento ad inserimento per tubi.
Inventor: HOHMANN RALF
IPC: F16L21/08
Filed: 1992-11-24
Granted: 1996-01-12
Abstract: Un dispositivo di accoppiamento ad inserimento per tubi (1, 2), dei quali almeno uno presenta un cordolo (3), è provvisto di bracci di arresto elastici (14) con una scanalatura circonferenziale interna (17) per agganciarsi a scatto con il cordolo (3). Una boccola (4) la quale circonda con accoppiamento geometrico i bracci di arresto (14) e i bracci di arresto (14) sono provvisti di sottosquadri complementari (10, 15). La boccola (4) e i bracci di arresto (14) si possono spostare gli uni rispetto agli altri in senso assiale, di guisa con i sottosquadri (10, 15) vengono a portarsi in contatto oppure escono dal loro contatto.fig. 1
Patent IT-1260879-B (IT)
Title: Porta motorizzata a due ante per veicoli ferrotranviari.
Inventor: CASALONE ENRICO
IPC: B61D/
Filed: 1993-06-28
Granted: 1996-04-29
Abstract: Porta motorizzata (1) per veicoli ferrotranviari, includente due ante affiancate (2, 3) spostabili relativamente ad un vano di porta del veicolo fra una condizione rientrata di chiusura della porta (1) ed una condizione estratta, nonché traslabili in detta condizione estratta tra una posizione prossimale in cui esse sono fra loro adiacenti ed una posizione distale di apertura della porta (1) in cui esse sono fra loro distanziate, ed un sistema di azionamento comprendente primi e secondi mezzi attuatori (7, 48) per comandare lo spostamento simultaneo delle due ante (2, 3) rispettivamente fra dette condizioni rientrata ed astratta e fra dette posizioni prossimale e distale, e mezzi di sostegno e di guida orizzontale rispettivamente superiori (39, 49; 42, 43) ed inferiori (26, 52) delle due ante, dei quali quelli superiori (39, 49; 42, 43) sono associati ad una piastra comune (8). I primi mezzi attuatori comprendono un unico motore (7) che aziona una coppia di spintori lineari superiori (5) fra loro connessi operativamente ed agenti sulle due ante (5, 6) attraverso la suddetta piastra comune (8), ed una coppia di spintori lineari inferiori (6) connessi cinematicamente agli spintori superiori (5) mediante rispettive aste di trasmissione sostanzialmente verticali (35) ed ai quali sono associati detti mezzi di sostegno e guida inferiori (26, 52).(Figura 1)
Patent IT-1262249-B (IT)
Title: Die for the manufacture of products of expanded plastics material
Inventor: PONCHIA GIUSEPPE
IPC: B29D/
Filed: 1993-12-13
Granted: 1996-06-19
Abstract: This invention relates to a die for the manufacture of products from expanded plastics material of the type which can be applied to conventional presses (not illustrated) commonly used for the moulding of expanded polystyrene or polypropylene. Die 1 substantially comprises two half-dies 2, 3 made of a material which is a good conductor of heat which can be joined together in such a way as to bound at least one cavity 4 within which a product 5 is moulded, having a substantially constant and small thickness S and the outer surface 2', 3' of which partly bounds a chamber 6, 7 within which steam V or a cooling liquid R flows. Cavity 4 has an opening 8 for the entry of the material M which is to be sintered and at least two microslots 10, 11 for the passage of steam V. <IMAGE>
Patent MX-167222-B (MX)
Title: Mejoras a substrato contenedor de poliester laminado y contenedor dispensador colapsable hecho del mismo
Inventor: TRAVSS EDWARD A
IPC: B65D35/02
Filed: 1984-12-28
Abstract: La presente invención se refiere a mejoras a substrato contenedor de poliester laminado y contenedor dispensador colapsable hecho del mismo, que tiene un substrato de capas de materiales que comprenden una primera capa de un poliéster, una segunda capa de hoja metálica, una tercera capa de papel y una cuarta capa de un poliéster.
Patent PT-104153-B (PT)
Title: Cloro-complexos escorpionatos de ferro e vanádio e sua aplicação como catalisadores da oxidação parcial, em condições suaves e ambientalmente toleráveis, de ciclo-hexano a ciclo-hexanol e ciclo-hexanona
Inventor: POMBEIRO ARMANDO JOSE LATOURRE
IPC: C07C35/08
Filed: 2008-08-04
Abstract: A INVENÇÃO REFERE-SE A NOVOS CLORO-COMPLEXOS ESCORPIONATOS DE FERRO E VANÁDIO, DE FÓRMULAS (1) A (4), E AO USO DAQUELES COMPOSTOS E DE COMPLEXOS RELACIONÁVEIS COMO CATALISADORES DA OXIDAÇÃO PEROXIDATIVA DO CICLO-HEXANO A CICLO-HEXANOL E CICLO- HEXANONA, COM ELEVADOS RENDIMENTO E SELECTIVIDADE, REALIZADA EM CONDIÇÕES SUAVES E AINBIENTALMENTE TOLERÁVEIS, EM PARTICULAR EM MEIO AQUOSO.
Patent PT-104252-B (PT)
Title: Método para compressão da composição do léxico com o modelo de língua num sistema de reconhecimento de fala para dispositivos móveis
Inventor: MIRANDA JOAO TIAGO RODRIGUES D
IPC: G06F40/00
Filed: 2008-11-06
Abstract: A PRESENTE PATENTE APRESENTA UM MÉTODO DE COMPRESSÃO DA COMPOSIÇÃO DE UM LÉXICO COM UM MODELO DE LÍNGUA NO ÂMBITO DE UM SISTEMA DE DESCODIFICAÇÃO DE UM SISTEMA DE RECONHECIMENTO DE FALA. ESTE MÉTODO PODE SER REALIZADO NUMA GRANDE VARIEDADE DE DISPOSITIVOS, PERMITINDO A EXECUÇÃO DE TAREFAS DE RECONHECIMENTO DE MÉDIA DIMENSÃO EM DISPOSITIVOS COM REDUZIDOS RECURSOS COMPUTACIONAIS, E FACILITANDO A PARALELIZAÇÃO DE TAREFAS COM VOCABULÁRIOS MUITO LARGOS EM MÁQUINAS DE MAIORES RECURSOS COMPUTACIONAIS. O MÉTODO AQUI DESCRITO COMPREENDE ESSENCIALMENTE DOIS PONTOS PRINCIPAIS: A COMPRESSÃO EM TEMPO DE EXECUÇÃO DA COMPOSIÇÃO DO LÉXICO COM O MODELO DE LÍNGUA UTILIZANDO CAMINHOS LINEARES E UMA CODIFICAÇÃO DE TAMANHO VARIÁVEL DOS CAMPOS DOS ARCOS DO MODELO, E O DESENHO DE UMA ESTRUTURA DE DADOS (CACHE) PARA FACILITAR O ACESSO AO TRANSDUTOR COMPRIMIDO, CRIADA DE FORMA A EXPLORAR AS PARTICULARIDADES DO AUTÓMATO (CAMINHOS LINEARES) UTILIZADAS NO PASSO ANTERIOR.
Patent TW-203089-B (TW)
IPC: C08F12/00
Filed: 1991-09-05
Granted: 1993-04-01
Abstract: Improved flame retardant latex coatings are disclosed which comprise copolymers of ring-halogenated aromatic monomer units and alkyl acrylate/methacrylate monomer units, and which may additionally include at least one other monomer. In a first embodiment, the coatings include ring-brominated aromatic monomer units and alkyl acrylate and/or alkyl methacrylate monomer units. In a second embodiment, the coatings include these first two types of monomer units and further include third monomer units from unsaturated esters of saturated carboxylic acids, halogen-free aromatic monomers or unsaturated carboxylic or dicarboxylic acid monomers. In a third embodiment, the coatings include four monomer units, namely ring-brominated aromatic monomer units, alkyl acrylate/methacrylate monomer units, halogen-free aromatic monomer units and unsaturated carboxylic or dicarboxylic acid monomer units. In one aspect, the halogenated aromatic monomers are present in an amount to provide from 7 to 20 weight percent bromine in the final latex coating. In another aspect, the halogenated aromatic monomers include polybrominated monomers, particularly to provide monomers having an average of at least about 1.5 bromines per monomer unit. The coating polymers have glass transition temperatures in the -30 degrees C. to 30 degrees C. range and are useful, for example, for coating, paint, adhesive, sealant and non-woven binder applications.
Patent TW-199106-B (TW)
Title: Method of waterproofing a solid ball
Inventor: WILLIAMS DONALD E
IPC: A63B37/12
Filed: 1992-05-18
Granted: 1993-02-01
Abstract: A water-proof solid ball having a wound core and a cover is provided immersing the core in a solution of water-repellent material applying a coating of water-repellent material to the inside surface of the cover, and securing the cover on the core.