Patents by Inventor Gottfried Keller
Gottfried Keller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7853337Abstract: A device is provided for monitoring and controlling a machine having at least two sensors for recording measurement variables, particularly motion variables, and with an electronic control loop for evaluating the recorded measurement variables and correspondingly controlling machine components of which the measurement variables can be influenced.Type: GrantFiled: October 17, 2006Date of Patent: December 14, 2010Assignee: Rampf Formen GmbHInventors: Gottfried Keller, Andreas W{hacek over (o)}rz, Heinrich Walk
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Patent number: 7290752Abstract: The invention relates to a mold for the production of molded parts on a jolting table, the mold having a mold frame which carries a mold insert in which recesses defining the molded parts are formed, the mold insert being surrounded by a clearance space toward the mold frame, this clearance space being at least partly filled with damping means which keeps the mold frame and mold insert at a distance apart in a non-contact manner. In this case, at least one locking element passes through the clearance space, the locking element being mounted with play in at least one of the mold frame and mold insert.Type: GrantFiled: October 25, 2004Date of Patent: November 6, 2007Assignee: Rampf Formen GmbHInventor: Gottfried Keller
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Publication number: 20070088523Abstract: A device is provided for monitoring and controlling a machine having at least two sensors for recording measurement variables, particularly motion variables, and with an electronic control loop for evaluating the recorded measurement variables and correspondingly controlling machine components by means of which the measurement variables can be influenced.Type: ApplicationFiled: October 17, 2006Publication date: April 19, 2007Applicant: Rampf Formen GMBHInventors: Gottfried Keller, Andreas Worz, Heinrich Walk
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Patent number: 7014161Abstract: A mold for producing concrete articles having a mold bottom part that includes a molded chamber block having a substantially uniform thickness and side parts attached to the molding chamber block by fasteners. The molding chamber block has molding chambers located in an inner region and cutouts located on an edge region. The cutouts form intermediate webs of approximately uniform width, and at least a portion of the cutouts are undercut slots having lateral openings. The fasteners attach the side parts to the molding chamber block via the undercut slots of the cutouts.Type: GrantFiled: March 28, 2002Date of Patent: March 21, 2006Assignee: Rampf Formen GmbHInventors: Achim Rampf, Gottfried Keller
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Publication number: 20050056766Abstract: The invention relates to a mold for the production of molded parts on a jolting table, the mold having a mold frame which carries a mold insert in which recesses defining the molded parts are formed, the mold insert being surrounded by a clearance space toward the mold frame, this clearance space being at least partly filled with damping means which keeps the mold frame and mold insert at a distance apart in a non-contact manner. In this case, at least one locking element passes through the clearance space, the locking element being mounted with play in at least one of the mold frame and mold insert.Type: ApplicationFiled: October 25, 2004Publication date: March 17, 2005Applicant: Rampf Formen GmbHInventor: Gottfried Keller
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Publication number: 20040104332Abstract: The invention relates to a mould for producing pre-cast concrete units, in particular paving stones, comprising a lower mould section consisting of a mould cavity block (1) and side sections that are screwed thereto. The mould cavity block (1) has an internal area (4) comprising mould cavities (6, 7) and an edge area (5), on at least part of which recesses (13) are provided. An efficient method of production and suitability of the mould for hardening are achieved by a constant thickness of the mould cavity block (1), by recesses (13), that create intermediate webs (24) with a web width (S) that remains approximately constant, by recesses (13), which are partly configured in the edge area (5, 11, 12) as undercut grooves (15, 16) and by the screwing of the side sections crosswise to the course of the undercut groove (15, 16).Type: ApplicationFiled: September 24, 2003Publication date: June 3, 2004Inventors: Achim Rampf, Gottfried Keller
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Patent number: 6093012Abstract: A description is given of a mold for manufacturing concrete moldings, e.g. paving setts, large-volume blocks and large-format, thin panels, having a bottom mold part which comprises the mold chamber(s) and having a top mold part with a load plate and the die or the dies. The bottom die parts (47) which come into contact with the concrete in each case are guided so as to be movable in the vertical direction, with respect to the top mold part, in a displacement range defined by stops (46, 51, 53) and are exposed to the action of a pressure medium, e.g. a bellows (40) activated by compressed air. The manufacturing process claimed works with two successive fillings. After the first filling pre-compaction is carried out at a relatively high pressure, and after the second filling secondary compaction is carried out at reduced pressure, the reduced pressure resulting in desired striking of the movable die part against the other die in the same rhythm as the vibrations.Type: GrantFiled: October 2, 1996Date of Patent: July 25, 2000Assignee: RAMPF Formen GmbHInventors: Herbert Hess, Gottfried Keller
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Patent number: 5807199Abstract: The invention relates to a hydro-mechanical gearbox with a hydraulic pump, a hydraulic motor and a set of planetary gears, whereby the pressure line of the hydraulic pump is conducted back, via the inserted hydraulic motor, to the suction line of the hydraulic pump, thereby forming a circuit, and whereby either the sun wheel or the planet-carrier of the set of planetary gears is coupled in a rotationally fixed manner to the driven shaft of the gearbox, and the other one of these two elements of the planetary gear is coupled in the same manner to the output shaft of the gearbox, and the hollow wheel is coupled to a rotational unit of the hydraulic pump, preferably to its casing, while the other rotational unit of the hydraulic pump is coupled to the frame or to the output shaft of the gearbox; according to the invention one rotational unit of the hydraulic motor, preferably its rotor, is coupled in a rotationally fixed manner to the driven shaft of the gearbox, and the other unit of the hydraulic motor, preferType: GrantFiled: May 14, 1996Date of Patent: September 15, 1998Inventor: Gottfried Keller
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Patent number: 5612065Abstract: An arrangement for producing a molded concrete article which has a surface including zones at varying levels. The arrangement includes three groups of punches defining respective impression depths into the concrete article, and a molding device including three head plates, each of which is connected to a corresponding one of the groups of punches. An upper head plate is connected to a group of punches having a deepest impression depth. A lower head plate disposed below the upper head plate is connected to a group of punches having a shallowest impression depth.Type: GrantFiled: March 1, 1995Date of Patent: March 18, 1997Assignee: Rampf Formen GmbHInventor: Gottfried Keller
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Patent number: 4545754Abstract: An apparatus for producing moldings (48) from concrete et cetera, particularly concrete paving stones, the top side of which exhibits partial surfaces of different vertical level, comprises a molding table (46), a molding frame (30, 31) and a stamp fitting in the latter. For better consolidation and in order to facilitate clean removal from the mold, it is provided that the stamp consists of two separate partial stamps (33, 42) guided in each other, the end cross-sectional surfaces of which are dimensioned so that the one (33) molds the lower-lying and the other (42) the higher-lying top partial surfaces of the molding (48) and that the stroke distance of the partial stamp (42) for the higher-lying partial surfaces is limited in an upper consolidation position, in which both partial stamps conjointly reproduce the top side of the molding, and in a lower mold-removal position, by stops.Type: GrantFiled: March 8, 1984Date of Patent: October 8, 1985Assignee: Rampf Foreman GmbHInventors: Joachim Scheidt, Gottfried Keller