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Patent MarketPlace: Construction Patents and Building Trades Technology Patents for Sale

Faster, Cheaper Manhole Construction (Gilbert): U.S. Patent No. 10,458,093

Manholes are a common site across America. We ride over them and walk over them – or around them – without giving them much thought. Manholes provide access to the unseen underground infrastructure that makes life in the modern world possible. Clean drinking water, electrical power, sewage and waste removal, natural gas, telephone and Internet, and many other services are accessed from manholes. However, constructing a manhole has been an expensive and time-consuming process that includes fabricating a form, filling it with poured concrete, waiting for the concrete to harden and cure, and then detaching and removing the form and transporting one of the heaviest products imaginable to its next location. That has been the process…until now.

This patent dramatically simplifies the process, providing technology that saves time and material costs. The patented system uses a two barrel pre-fabricated mold that is made from common plastic materials. The inner and outer barrels are welded in place to secure them and the cavity between them is filled with concrete. When the concrete hardens, it creates a ready-to-use manhole. The manhole can be constructed in-place on-site or off-site and then transported and dropped into place. The form system becomes a permanent integrated feature of the finished manhole. This patent does not create a new type of manhole, but addresses a more cost effective and faster way to construct manholes.

U.S. Patent No. 10,458,093 for an “On-site manhole casting system” would enable any supplier of construction materials to offer its customers a device for fabricating manholes faster and cheaper than the current process.

Footless Concrete Foundations (ISBP): U.S. Patent No. 8,516,773

Concrete foundations for buildings have not changed much over the last 100 years. A process of formwork, pouring, and stripping is done twice – first for the footings and then, after they have cured, once again for the actual foundation walls. While this system does work, it is expensive, labor-intensive, and time-intensive.

This patent takes the pouring of foundations to a new level by eliminating separate footings. Conventional forms are used in a patented method that provides both the footing and foundation walls in one pour instead of two. And it does this using the same amount of concrete as is used in the slower two-part process. This new technology reduces construction time, saving an average of two days in the schedule. It also saves significantly on the basement slab since the pad is prepared only once for both the foundation and the slab – no coming back to fill, grade, and compact for the slab. And excavation cost are less, saving over 100 yards of removal and later fill.

U.S. Patent No. 8,516,773 for a “Foot free concrete foundation method and device” would be a valuable acquisition for any building supplies manufacturer that is ready to leapfrog the current technology and offer serious savings to contractors that are building concrete foundations.

Frameless Construction (ISBP): Nine U.S. Patents and Application Portfolio

Residential construction methods have not changed much over the years. The same joists, studs, trusses, and rafters have been used to build everything from houses to schools, hotels, and offices for centuries. In fact, the only major innovations were plywood/Oriented Strand Board and gypsum board, but they are both nailed to the same joist-stud-rafter frame. Current home construction is labor-intensive, highly inefficient, and far too expensive!

This portfolio changes all that by creating a frameless construction system in which 4 x 8-foot or longer panels are connected to form floors, walls, and roofs. The panels leave space that allows air to circulate – keeping the structure cool in the summer and warm in the winter – and accommodates plumbing and wiring. Holes are cut for windows and doors. These ventilated plenum panels are delivered to the construction site just as plywood or gypsum board would be, but NO joists, studs, trusses, or rafters are delivered as they are not needed. The panels are lifted into place and connected to each other to form a tight, solid, integral structure at less cost and in less time than convention “stick” construction!

Patent Portfolio

The acquirer of this portfolio will be able to offer a totally new, patent-protected, concept in construction that will dramatically reduce both labor and material costs, resulting in faster construction of buildings at less cost!

Mobile Tool Cart and Workbench (Mobile Designs): U.S. Patent No. 9,849,582

Performing any type of carpentry or other tradecraft work at a construction site usually requires lifting and transporting heavy power tools from a truck to the workplace and back to the truck. In many cases, this work is performed by a single worker without help. Moving tools and construction materials to the job site and back to the truck wastes time and is not productive. Lifting heavy loads exposes workers to injuries that add to the cost of the project. On site, the power tools must be mounted to a saw table that may not be sturdy, nor the ideal height, nor may provide proper support. These conditions compromise workplace safety and reduce productivity. Not good. Not smart. Not efficient.

The ideal solution would be sturdy mobile steel cart that can be moved in and out of a truck bed with a load of up to 350 pounds of tools on it without the worker having to lift all that weight. It would have fold-down legs like an ambulance gurney, it would incorporate a wood top for mounting power tools, and it would provide a flat working surface at the job site. It would have adjustable legs compatible with most truck bed heights, and its legs would have wheels that can be tailored to the job site terrain. At the end of the workday, it could be rolled back to the truck and slid into the cargo bay.

That is exactly the invention covered by this patent! U.S. Patent No. 9,849,582 for a “Rollaway storage cart with collapsible legs” creates exactly the perfect cart and workbench for any construction site. The inventor of the patent has manufactured prototypes already in use on job sites today. The invention would enable any seller or manufacturer of construction equipment or power tools to introduce a new product that saves time and improves workplace safety. The "video" link below shows a version of this invention, the “Work Sherpa,” in use.

Video


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