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1. (WO2006125435) METHOD AND MECHANISM FOR OPENING AND CLOSING OF MANHOLE COVERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2006/125435 International Application No.: PCT/DK2006/000091
Publication Date: 30.11.2006 International Filing Date: 03.03.2006
IPC:
E02D 29/14 (2006.01) ,E03F 5/02 (2006.01)
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
D
FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
29
Underground or underwater structures; Retaining walls
12
Manhole shafts; Other inspection or access chambers; Accessories therefor
14
Covers for manholes or the like; Frames for covers
E FIXED CONSTRUCTIONS
03
WATER SUPPLY; SEWERAGE
F
SEWERS; CESSPOOLS
5
Sewerage structures
02
Manhole shafts or other inspection chambers; Snow-filling openings; Accessories
Applicants:
CHRISTENSEN, Poul Erik [DK/DK]; DK (UsOnly)
GERHARDT CHRISTENSEN A/S [DK/DK]; Landholmvej 10 DK-9280 Storvorde, DK (AllExceptUS)
Inventors:
CHRISTENSEN, Poul Erik; DK
Agent:
HANS HARDING APS; Gustav Holms Vej 12 DK-9210 Aalborg, DK
Priority Data:
PA 2005 0076426.05.2005DK
Title (EN) METHOD AND MECHANISM FOR OPENING AND CLOSING OF MANHOLE COVERS
(FR) PROCEDE ET MECANISME D’OUVERTURE ET DE FERMETURE DE TAMPONS DE REGARDS D’EGOUT
Abstract:
(EN) The invention includes a method and mechanism for opening and closing covers including so-called manhole covers, which are typically used in relation with entrance openings of waste water line inspection wells. The new technique includes closing mechanisms with small areas of connection, which are very easy to clean in connection with opening and closing the covers. The new closing mechanisms have the high advantage that the covers after a simple cleaning process always closes correctly and are thereby prevented from tilting when heavy vehicles drive on them, which is a great problem of the known types of covers and cover closings. The closing mechanisms are provided with integrated bolts, which makes it easy and efficient to open and close the covers. The invention furthermore includes a new type of hinge, which is characterized in that it enables the occurrence of gaps between the covers and cover bases, which are small, when the covers are closed. This provides a good comfort when driving, for the road users, who drive on the manhole covers, and the problems with accumulating filth in the gaps are reduced to a minimum.
(FR) L’invention concerne un procédé et un mécanisme d’ouverture et de fermeture de tampons, notamment de tampons de regards d’égout typiquement associés aux ouvertures d’entrée de trous de visite de canalisations d’eaux usées. Le procédé fait appel à des mécanismes de fermeture dotés de petites zones de raccord très faciles à nettoyer relativement à l’ouverture et à la fermeture des tampons. Les mécanismes de fermeture présentent le grand avantage d’assurer la bonne fermeture systématique des tampons suite à un processus de nettoyage simple, en évitant ainsi que ceux-ci ne s’inclinent lors du passage de véhicules lourds, un problème qui affecte la fermeture des types connus de tampons. Les mécanismes de fermeture sont dotés de boulons intégrés permettant d’ouvrir et de fermer facilement et correctement les tampons. L’invention concerne également un nouveau type de charnière, caractérisé en ce qu’il minimise les jours formés entre les tampons et leurs cadres une fois les tampons fermés, en offrant ainsi un excellent confort de conduite aux usagers des routes roulant sur les tampons et en minimisant les problèmes associés à l’encrassement des jours.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Danish (DA)