1. Field of the Invention
The present invention relates generally to connector components that facilitate the fabrication of structural supports and frames. The present invention relates more specifically to pipe section connectors structured to enable the quick fabrication of a stable base and support frame.
2. Description of the Related Art
Efforts have been made in the past to provide connectors and other structural components that facilitate the assembly of support bases, support posts, and other framework type structures. Whether constructed of metal pipes or PVC pipes and the like, such connectors have generally been limited to inline connections, right angle connections, 135° (45° deviation) angle connections, as well as T-connectors and Y-connectors. Rectangular frames and 45° angle frames can therefore be constructed from various types of existing pipe connectors.
No effort has been made in the past, however, to construct tetrahedral shaped components that would enable the quick fabrication of a stable tripod base with a stable post support structure. A tripod base is known to provide a stable support for a single post or platform as is implemented in camera tripods and the like. Currently, implementation of a tripod structure from standard pipe connectors and the like would require multiple T-connectors and multiple 135° connectors, all associated with a number of short lengths of pipe section.
A tetrahedron shaped connector would enable the quick fabrication of a stable tripod base with a stable post support structure as is described in the present invention. The tetrahedron shaped connector is a single piece part made by machining, molding, casting, forging or some other manufacturing means associated with the material from which the pipe connector is constructed (typically metal or plastic). The basic tetrahedron shaped component (hereinafter referred to as a “knuckle connector”) provides four pipe connections oriented at 109.5° angles to each other, forming a regular tetrahedron configuration. [The pipe connections are 120° from each other on a projection plane.] Pipe sections may be screwed or press fit into each of the four pipe connections. Three of these fitted pipes may be oriented to form a three-point (tripod) stable base. The remaining top pipe connection may extend vertically up to form a post support for a variety of uses.
The body of the tetrahedron shaped connector, or knuckle connector, optionally incorporates four smaller apertures, preferably threaded, that extend through the body of the connector opposite each of the pipe connections. These threaded apertures provide attachment points for screw or eye bolt structures that may be used for a hold down point or other support points for a variety of different assembled structures. Further objectives of the present invention will become apparent from an understanding of the following detailed description and the attached drawing figures which may be briefly described as follows.
Reference is made first to
Opposing each of the knuckle extensions 14a-14d and knuckle ports 16a-16d, through the wall of knuckle body 12 are ancillary apertures 18a-18d. Here again, in the preferred embodiment, ancillary apertures 18a-18d are preferably threaded apertures. Such ancillary apertures 18a-18d may or may not be utilized in any specific construction implementation of the system of the present invention.
A preferred embodiment of the system of the present invention is sized and structured to be implemented in conjunction with standard sized pipe sections. One of the most commonly used standards is the Nominal Pipe Size (NPS) Standard that includes NPS ½″ and NPS ¾″ sizes. These two pipe sizes are among the more common used in conjunction with threaded iron pipe materials. Similar sizes may be identified in conjunction with common PVC pipe materials, typically non-threaded, and secured using PVC cement.
Although the detailed description herein will reflect a typical NPS ½″ set of components in conjunction with NPT ½″ (National Pipe Thread Taper) threaded construction. Those skilled in the art will recognize however that the basic configuration of the components of the system of the present invention lend themselves to implementation in conjunction with a wide range of pipe sizes. The actual size of the pipe, and therefore the connector construction based on the system of the present invention, will depend on the particular application (the weight that must be supported) and the various other forces that the frame or support structure will be subjected to. Most of the assemblies of the components of the system of the present invention described herein may best be implemented in conjunction with NPS ½″ iron pipe.
Reference is next made to
Foot connector 20 is sized and structured in a manner to receive a pipe section that extends from knuckle connector 10 as described above. Foot connector 20 is made up of foot body 22 with a single foot extension 24 configured at an angle. In order to receive a pipe section extending from the knuckle connector (oriented 109.5° from the vertical) the angle of foot extension 24 and foot port 26 from the horizontal (the plane of the floor) should be approximately 19.5°. While this angle is consistent with the 109.5° angle from the vertical for the tetrahedron, the length of the connecting pipe section (see description below) may vary which will result in a variation of the elevation of the knuckle connector from the floor or platform.
Foot connector 20 in the preferred embodiment of the present invention preferably does not include a threaded foot port 26 as orientation of the foot connector with regard to the knuckle connector is facilitated by having a smooth internal diameter wherein the pipe section may then be fixed in place by means of a set screw positioned within set screw extension 28 through set screw aperture 30. In this manner, a section of pipe may be threaded at one end and secured within the knuckle connector and tightened so as to be secure, followed by the attachment of the foot connector whose orientation may be established without the need for tightening a threaded section. A standard set screw (not shown) may be positioned within threaded set screw aperture 30 and tightened to secure the end of the pipe section within foot connector 20.
Additionally forming part of foot connector 20 is foot base 32 which provides the flat surface onto which the foot connector 20 may rest on and/or be secured to. For securing foot base 32, and therefore foot connector 20, to a flat surface, a number of attachment slots are provided. Base side slots 34a & 34b provide deeper slots through which threaded bolts or screws may be used to secure foot connector 20 to a flat platform. Base end slots 36a & 36b may also provide means for aligning the foot connector and maintaining its position on a flat surface.
Reference is next made to
Reference is next made to
Knuckle connector 10b is inverted and is positioned at the top end of tripod post 52 supported by knuckle connector 10a and forms the connector on which three support arms may be positioned. In this case, knuckle connector 10b is connected to and supports table support arms 54a-54c. Additional foot connectors 20d-20f are positioned on table support arms 54a-54c and are inversely oriented so as to provide their flat base surface upward to attach to or otherwise support table top 56. As with the tripod base components, the table may be constructed without the use of foot connectors, simply providing an evenly spaced and oriented array of three arms to support a horizontal surface. Table top 56 may simply be placed and secured on the stand under its own weight, or screws or bolts may be positioned through the appropriate slots in foot connectors 20d-20f to secure table top 56 in place. The basic construction in
Reference is next made to
Extending from one of the ancillary apertures 18a-18d in knuckle connector 10 is threaded eyelet arm 82. Eyelet arm 82 is threaded at a first end and terminates in an eyelet at the extended end. The threaded end is threaded into ancillary aperture 18a as described above. The eyelet component of eyelet arm 82 is positioned to receive stay post bolt 88 which on a threaded end is secured through the eyelet using threaded nuts 84a & 84b along with washer 86. This assembly therefore provides a stay post 88 that helps to maintain the loose end of paper towel roll 80 adjacent the roll as is typical.
Reference is next made to
Alternate uses of the same basic construction shown in
Reference is finally made to
The water supply for mister stand 110 preferably comes from an attachable hose 120 that may be connected through one of the foot connectors 20a-20c or may otherwise be connected to a point on the tripod post 114. Appropriate modifications of the foot connectors for receiving a hose connection and further for allowing a number of the mister stands to be connected in a series will be apparent to those skilled in the art.
Some modification of the mister stand shown in
Although the present invention has been described in conjunction with a number of preferred embodiments, those skilled in the art will recognize modifications to both the structure and the geometry of the individual components described that lend themselves to utilization in conjunction with alternate embodiments and alternate applications. The basic tetrahedral structure for the knuckle connector opens up a number of different fabrication systems that utilize both the knuckle connector at their core and the foot connectors for base support and inverted platform support. Once again, variations in the material from which the pipe sections are made are anticipated, as well as variations in the diameter of the pipe sections and the appropriately sized connector components. Each of these variations and modifications related to size and material are anticipated as falling within the spirit and scope of the invention.
This application claims the benefit under Title 35 United States Code §119(e) of U.S. Provisional Patent Application Ser. No. 61/674,084, filed Jul. 20, 2012, the full disclosure of which is incorporated herein by reference.
Number | Date | Country | |
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61674084 | Jul 2012 | US |