Patents by Inventor Robert Dicke
Robert Dicke 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: 7785055Abstract: The invention relates to a screw (1) having a threaded shank (2) and a screw tip (6). The threaded shank (2) is composed of a shank core (10) and a thread which extends helically over the shank core (10). Two flanks (15, 16) which converge in an outer thread edge (14) has a height (H) measured radially from the shank core (10) to the thread edge (14). The thread (12) has a specific apex angle (?) formed between the adjacent flanks (15, 16). Preferably the outer thread edge (14) extends in a wave form in the radial direction with an amplitude (U) between wave crests (20) forming indentations (24) which interrupt the surface of the flank (15/16). At least one of the two flanks (15, 16) of the thread (12) is formed concavely in the region between the shank core (10) and the thread edge (14), seen in radial profile, in such a way that the apex angle (?) is less than a flank angle (?F). With preference, the thread (12) respectively has in the regions that are not interrupted by indentations (24).Type: GrantFiled: January 13, 2005Date of Patent: August 31, 2010Assignee: A-Z Ausrustung und Zubehor GmbH & Co. KGInventors: Robert Dicke, Krista Dicke, legal representative, Nikolas Dicke, legal representative, Markus Dicke, legal representative, Karlotta Dicke, legal representative, Felicia Dicke, legal representative, Ticiana Dicke, legal representative
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Patent number: 7604445Abstract: The invention relates to a countersunk head screw having a head (1), a shank (2) and a thread (3) extending at least partly over the shank (2). The head (1) has a bearing surface (4), narrowing in the direction of the shank (2), and a basic contour (5) which converges at a first angle (?) in a first head section (5a) remote from the shank (2) and at a second, smaller angle (?) in a second head section (5b) facing the shank (2).Type: GrantFiled: February 25, 2000Date of Patent: October 20, 2009Assignee: A-Z Ausrustung und Zubehor GmbH & Co. KGInventor: Robert Dicke
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Patent number: 7334976Abstract: The invention relates to a countersunk screw having a threaded shank and a countersunk head, which latter has a conical surface tapering at a countersinking angle in the direction of the threaded shank. The conical surface has a plurality of ribbed protrusions distributed over the periphery and jointly defining a conical enveloping surface with a cone angle. The countersinking angle of the conical surface is less than the cone angle of the ribbed protrusions. The ribbed protrusions have outer bearing surfaces, which define the conical enveloping surface and which, in terms of their areal size, are dimensioned in dependence on a material-specific surface pressure such that, in a screw application for fastening fittings or the like by screwing into a sinkhole between the ribbed protrusions and the respective sinkhole, a certain, surface-damage-preventing surface pressure is generated.Type: GrantFiled: September 3, 2004Date of Patent: February 26, 2008Assignee: A—Z Ausrustung und Zubehor GmbH & Co. KGInventor: Robert Dicke
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Publication number: 20080019796Abstract: The invention relates to a screw (1) having a threaded shank (2) and a screw tip (6). The threaded shank (2) is composed of a shank core (10) and a thread which extends helically over the shank core (10). Two flanks (15, 16) which converge in an outer thread edge (14) has a height (H) measured radially from the shank core (10) to the thread edge (14). The thread (12) has a specific apex angle (?) formed between the adjacent flanks (15, 16). Preferably the outer thread edge (14) extends in a wave form in the radial direction with an amplitude (U) between wave crests (20) forming indentations (24) which interrupt the surface of the flank (15/16). At least one of the two flanks (15, 16) of the thread (12) is formed concavely in the region between the shank core (10) and the thread edge (14), seen in radial profile, in such a way that the apex angle (?) is less than a flank angle (?F). With preference, the thread (12) respectively has in the regions that are not interrupted by indentations (24).Type: ApplicationFiled: January 13, 2005Publication date: January 24, 2008Inventors: Robert Dicke, Krista Dicke, Nikolas Dicke, Markus Dicke, Karlotta Dicke, Felicia Dicke, Ticiana Dicke
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Patent number: 7101133Abstract: The invention relates to a screw fastener comprising a threaded shank having a force application means for torque transmission and a screw fastener point. The threaded shank consists of a shank core and a self-tapping thread, and the thread is designed as a prominence which runs helically over the shank core, is defined by two flanks meeting in an outer thread edge and has a radial height (H). The outer thread edge, at least in a section of the thread, runs in a wavelike manner in the radial direction with an amplitude between wave crests having the height (H) and wave troughs having a height (h) reduced by the amplitude.Type: GrantFiled: October 18, 2004Date of Patent: September 5, 2006Assignee: A-Z Ausrustung Und Zubehor GmbH & Co KGInventor: Robert Dicke
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Patent number: 7037059Abstract: In accordance with an embodiment of the invention the threads of the two thread sections have an opposite pitch. Further, chips are reduced in that the tip of the screw near the thread section has been configured as a multiple screw-thread, in particular a double screw-thread, where the pitch of the threads of the multiple screw-thread is greater than the pitch of the single screw-thread of the thread section near the head of the screw.Type: GrantFiled: January 6, 2004Date of Patent: May 2, 2006Assignee: Altenloh, Brinck Co. GmbH & Co. KGInventor: Robert Dicke
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Publication number: 20050186048Abstract: The invention relates to a screw fastener comprising a threaded shank having a force application means for torque transmission and a screw fastener point. The threaded shank consists of a shank core and a self-tapping thread, and the thread is designed as a prominence which runs helically over the shank core, is defined by two flanks meeting in an outer thread edge and has a radial height (H). The outer thread edge, at least in a section of the thread, runs in a wavelike manner in the radial direction with an amplitude between wave crests having the height (H) and wave troughs having a height (h) reduced by the amplitude.Type: ApplicationFiled: October 18, 2004Publication date: August 25, 2005Inventor: Robert Dicke
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Publication number: 20050063796Abstract: The invention relates to a countersunk screw having a threaded shank and a countersunk head, which latter has a conical surface tapering at a countersinking angle in the direction of the threaded shank. The conical surface has a plurality of ribbed protrusions distributed over the periphery and jointly defining a conical enveloping surface with a cone angle. The countersinking angle of the conical surface is less than the cone angle of the ribbed protrusions. The ribbed protrusions have outer bearing surfaces, which define the conical enveloping surface and which, in terms of their areal size, are dimensioned in dependence on a material-specific surface pressure such that, in a screw application for fastening fittings or the like by screwing into a sinkhole between the ribbed protrusions and the respective sinkhole, a certain, surface-damage-preventing surface pressure is generated.Type: ApplicationFiled: September 3, 2004Publication date: March 24, 2005Inventor: Robert Dicke
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Publication number: 20040141827Abstract: In accordance with an embodiment of the invention the threads of the two thread sections have an opposite pitch. Further, chips are reduced in that the tip of the screw near the thread section has been configured as a multiple screw-thread, in particular a double screw-thread, where the pitch of the threads of the multiple screw-thread is greater than the pitch of the single screw-thread of the thread section near the head of the screw.Type: ApplicationFiled: January 6, 2004Publication date: July 22, 2004Applicant: Altenloh, Brinck & Co., GmbH & Co. KGInventor: Robert Dicke
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Patent number: 6698987Abstract: The present invention relates to a self-drilling and thread-forming connecting element, in particular a screw. The screw comprises a threaded shank including a cylindrical core and a thread formed as a protuberance on the core. The screw also includes an end drilling tip for drilling a core hole for the thread.Type: GrantFiled: May 10, 2002Date of Patent: March 2, 2004Assignee: A-Z Ausrustung und Zubehor GmbH & Co. KGInventor: Robert Dicke
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Patent number: 6402448Abstract: The present invention relates to a self-drilling and thread-forming connecting element, a screw, having a threaded shank and a drilling point at the end for the chip-forming drilling of a core hole for the threaded shank. The drilling point is designed as a step drill having at least two drilling steps with different diameters.Type: GrantFiled: October 15, 1999Date of Patent: June 11, 2002Assignee: A-Z Ausrüstung und Zubehör GmbH & Co.Inventor: Robert Dicke
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Patent number: 6394725Abstract: A countersunk head screw is provided. The countersunk head screw includes a head attached to or integrally formed with a shank. A thread extends over a partial region of the shank and a portion of the head includes a bearing surface that tapers conically towards the shank. At least one restraint rib is arranged in a top region of the bearing surface turned away or spaced apart from the shank. Additionally, at least one cutting rib is arranged in a lower region of the bearing surface facing or adjacent the shank.Type: GrantFiled: February 23, 2000Date of Patent: May 28, 2002Inventor: Robert Dicke
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Patent number: 6290444Abstract: A countersunk head screw is provided. The countersunk head screw includes a head attached to or integrally formed with the shank. A thread extends over a partial region of the shank and a portion of the head includes a bearing surface that tapers conically towards the shank. At least one cutting rib is arranged in a lower region of the bearing surface facing or adjacent the shank. Additionally, at least one restraint rib is arranged in a top region of the bearing surface turned away or spaced apart from the shank.Type: GrantFiled: February 23, 2000Date of Patent: September 18, 2001Assignee: A-Z Ausrustung und Zubehor GmbH & Co. KGInventor: Robert Dicke
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Patent number: 5897280Abstract: A self perforating (punching) and thread forming connecting element such as a screw having a screw shaft 2 and screw tip 6 which tapers to a pointed end 4 as well as a single or multiple thread 8 which extends at least partially along the screw shaft 2 and along the screw tip 6 to the pointed end 4. This screw tip 6 has an essentially polygonal cross section along at least a partial region of its axial length and the thread 8 is constructed as a radially raised portion which has a helical shape with an outer thread edge 8a which, when viewed in an axial projection, forms a spiral in the region of the screw tip 6 as the radius of the thread becomes smaller and in the region of the screw shaft 2, the outer thread edge 8a proceeds with a constant radius in the form of a circle.Type: GrantFiled: April 3, 1998Date of Patent: April 27, 1999Assignee: A-Z Ausrustung und Zubehor GmbH & Co. KGInventor: Robert Dicke
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Patent number: 5827030Abstract: The present invention pertains to a thread-forming joining element, in particular, a screw, which comprises a single or multiple thread that extends over at least part of the screw shaft (1), a screw tip (3) and a screw head (2). The thread extends to the point of the screw tip (3), with at least one friction edge region (11) extending over at least part of the length of the screw tip (3) in the longitudinal direction of the screw, namely on the circumferential surface in the region of the screw head (3).Type: GrantFiled: September 5, 1996Date of Patent: October 27, 1998Assignee: A-Z Ausrustung und Zubehor GmbH & Co., KGInventor: Robert Dicke
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Patent number: 5044853Abstract: A thread-cutting screw where the edge of the screw is at least partially undulating. The undulating edge has recesses in the shape of a parabola interrupting the flank face of the thread. The recesses are asymmetrical so that the front flank face of the recess in the screw-in direction is steeper than the rear flank face in the screw-in direction, so that unscrewing the screw is more difficult than screwing-in the screw.Type: GrantFiled: April 19, 1990Date of Patent: September 3, 1991Assignee: Erwin RommelInventor: Robert Dicke