| Patents for E04H 12 - Towers; Masts, poles; Chimney stacks; Water-towers; Methods of erecting such structures (12,702) |
|---|
| 05/22/1991 | CN2077469U Wire pole made of thin-wall steel pipe and concrete |
| 05/21/1991 | US5016853 Collapsible support device |
| 05/15/1991 | WO1991007559A1 Steel utility structure and method for assembly thereof |
| 05/08/1991 | DE4009230C1 Pile holding stake for vine - has sharpened tip penetrating ground and sleeve surrounding three radial legs |
| 05/08/1991 | CN2076586U Flagpole with blower for making flag flutter |
| 05/02/1991 | WO1991005930A1 Improvements relating to ground sockets |
| 04/30/1991 | US5011107 Post anchor apparatus |
| 04/30/1991 | US5010698 Anchoring post assembly |
| 04/23/1991 | US5009734 Method of making an insulating support arm for an electric line pole |
| 04/23/1991 | US5009047 Chimney crown mold |
| 04/17/1991 | CN2075232U Concrete electric pole with wave shaped steel wrie ring reinforced rod |
| 04/16/1991 | CA1282934C Guy-wire guard assembly and fastening systems therefor |
| 04/16/1991 | CA1282933C Bracket for support of vertical pole |
| 04/10/1991 | CN2074784U Man-made aid flag-flying device |
| 04/09/1991 | US5005512 Portable extensible flag pole with a flag |
| 04/04/1991 | DE3931560A1 Columns without foundations - which have foot portions as concrete plant pot with anchored steel column tube |
| 04/02/1991 | US5003736 Deployable and collapsible structure |
| 04/02/1991 | US5003734 To prevent climbing |
| 03/27/1991 | EP0418226A1 Anchoring device |
| 03/26/1991 | US5002252 Post stabilizer |
| 03/26/1991 | CA1281882C Lightweight tower assemblies for antennas and the like |
| 03/19/1991 | US4999966 Tubular pole |
| 03/12/1991 | CA1281166C Base support for pole |
| 02/27/1991 | EP0414284A1 Lamp standard with an access opening to be shut off by a door |
| 02/26/1991 | US4995206 Elevated post base |
| 02/20/1991 | EP0413014A1 Device for erecting and aligning a tilting telescopic mast mounted on a transport vehicle. |
| 02/12/1991 | US4991726 Support stand |
| 02/12/1991 | US4991367 Apparatus and method for reinforcing a wooden pole |
| 01/31/1991 | DE3924431A1 Auxiliary mast for erecting electricity pylons - has two or more parts which fit telescopically one in another |
| 01/29/1991 | US4987718 Pole reinforcement system |
| 01/29/1991 | CA1279686C Group operated circuit disconnect apparatus for overhead electric power lines |
| 01/24/1991 | DE3922846A1 Self-stabilising chimney structure - is made from open-ended hollow cylinders joined end to end and supported by tubular balloons |
| 01/23/1991 | EP0408553A1 A device intended for attachment to the outer surface of a cylindrical object |
| 01/17/1991 | DE3926843C1 Folding link on tubular supports - uses triangular flat plates at ends of tubes with hinge along one edge and pin fitting into socket |
| 01/16/1991 | EP0408163A2 Playground equipment |
| 01/16/1991 | EP0407998A2 Bidimensional truss structure, particularly support for overhead electric energy transmission lines |
| 01/16/1991 | CN2069355U Pen holder with function for receiving and keeping flag |
| 01/10/1991 | DE3918763A1 Concrete tower construction method - involves flexible shuttering shaped from outside and by concrete pressure inside |
| 01/02/1991 | EP0405791A1 Refractory brick wall system |
| 01/01/1991 | US4981005 Tapered pole and method of making |
| 12/27/1990 | EP0375675A4 Utility insulated cross-arm |
| 12/27/1990 | CA1278165C Water tower |
| 12/26/1990 | CA2010093A1 Refractory brick wall system |
| 12/25/1990 | US4979740 An athletic contact device |
| 12/19/1990 | CN2067734U High-pole light tower for railway station |
| 12/05/1990 | EP0400447A1 Device for protecting wooden masts |
| 12/05/1990 | EP0169206B1 A utility pole support |
| 11/29/1990 | WO1990014480A1 Tensioned ultra-lightweight isostatic pylon |
| 11/28/1990 | EP0399215A1 Retractable column |
| 11/27/1990 | US4972794 Flagstaff with protective housing |
| 11/19/1990 | WO1990014481A1 Cross-arm mounting bracket for poles |
| 11/19/1990 | CA2033092A1 Cross-arm mounting bracket for poles |
| 11/13/1990 | US4969301 Relatchable launch restraint mechanism for deployable booms |
| 11/08/1990 | DE3918169A1 Rotational flag pole - has lighting unit built into cap to illuminate both sides of flag |
| 11/07/1990 | EP0396339A1 Guy control system for extensible mast |
| 11/06/1990 | CA1275822C Pre-fabricated and modular chimney facade system |
| 11/01/1990 | WO1990012939A1 Positioning and levelling base |
| 10/30/1990 | US4966497 Adding catalyst and blowing agent |
| 10/30/1990 | US4965974 Steel utility structure and method for assembly thereof |
| 10/27/1990 | CA2015540A1 Guy control system for extensible mast |
| 10/25/1990 | CA2014731A1 Retractable column |
| 10/24/1990 | CN1010093B Apparatus for winding fibers on plastic rod essencially for supporting wire |
| 10/23/1990 | US4964664 Multiple lever side pole wrench |
| 10/16/1990 | US4962621 Modular brick chimney unit |
| 10/16/1990 | US4962620 Guy marker construction |
| 10/10/1990 | EP0390806A1 The improved method of creating inflatable products |
| 10/10/1990 | EP0179090A4 Connecting apparatus |
| 09/26/1990 | EP0389214A2 Composite beam, connector and construction |
| 09/26/1990 | EP0389042A2 A telescopic pole, particularly for holding TV antennas in the field |
| 09/25/1990 | US4958474 Truss structure |
| 09/25/1990 | US4958470 Elevated post anchor |
| 09/25/1990 | CA1274374A1 Mast articulating device, and mast thus aticulated_ |
| 09/20/1990 | DE4002830A1 Plastic post for fences etc. - has bottom end screened into ground and threaded top end to fix on main column which has bolted-on side plates and top fixings for fence |
| 09/11/1990 | US4955742 Erectable structure truss attachment joint |
| 09/11/1990 | US4955457 Arrangement for the demolition of smokestacks |
| 09/07/1990 | WO1990010133A1 Clamp for fastening of a post element |
| 08/28/1990 | US4951433 Foundation for a CMR cell site |
| 08/23/1990 | WO1990009341A1 Device for erecting and aligning a tilting telescopic mast mounted on a transport vehicle |
| 08/21/1990 | US4949525 Rotatable, flexible flagpole arrangement |
| 08/16/1990 | WO1990009500A1 Post, specially for supporting electric power supply cables |
| 08/16/1990 | EP0382266A1 Sockets |
| 08/16/1990 | CA2026321A1 Post, especially for holding electric power supply cables |
| 08/09/1990 | WO1990008635A1 Process for the production of a concrete post, and concrete pile obtained |
| 08/08/1990 | EP0243376B1 Device for anchoring bar-shaped objects, in particular poles in the soil |
| 08/01/1990 | EP0380272A1 Pole ballasting device |
| 07/31/1990 | US4944656 Telescopic rod means having rotatably retractable display sheet |
| 07/25/1990 | EP0379335A1 Transportation system for extensible members |
| 07/25/1990 | EP0235131B1 Post for traffic signals and the like |
| 07/19/1990 | DE3842026A1 Tower of a highly stable, to the greatest extent vibration-free design, inter alia for wind-driven power plants, of a laminar or sandwich construction using glass-fibre-reinforced plastic or carbon-fibre-reinforced plastic, for extremely heavy loadings at great heights |
| 07/18/1990 | CN1043973A Equal-diameter steel chimney holder-on upside-down charging method |
| 07/17/1990 | US4942537 System for assembling and disassembling a mast |
| 07/12/1990 | DE3943214A1 Verfahren zur herstellung von stuetzpfosten sowie nach dem verfahren hergestellte stuetzpfosten A process for preparing stuetzpfosten and prepared by the process stuetzpfosten |
| 07/12/1990 | DE3900339A1 Flag-retaining means |
| 07/11/1990 | CN1043764A Connecting method for supports and supporting system |
| 07/10/1990 | US4939877 Anchor device |
| 07/05/1990 | DE3843244A1 Retaining means which can be anchored in the ground |
| 07/04/1990 | EP0376430A1 Support system |
| 07/04/1990 | EP0375675A1 Utility insulated cross-arm. |
| 07/03/1990 | US4939037 Composite sign post |
| 07/03/1990 | CA1271014A1 Collapsible truss unit, and frameworks constructed by combinations of such units |