Escape door system
OF THE INVENTION In the drawings there is illustrated a school bus 10 having a rear wall 10A which includes one embodiment of an escape door system of this invention. Escape door 20 is normally cente... Read More
Inventors: Kalina, Benjamin F.;, Assignee: |
Home security interlocking hinges and striker plates
It is an object of the present invention to overcome the above-mentioned short-coming of the prior art by focusing on the weakest points in the door assembly. In accordance with the present invention ... Read More
Inventors: Cutrer, Robert E.;, Assignee: |
Method and apparatus for reinforcing a door assembly
OF THE PREFERRED EMBODIMENTS Turning initially to FIG. 1, the first fenestration product 10 selected for illustration generally comprises a door assembly 12 designed to be installed within the tradit... Read More
Inventors: Olberding, Ronald E.; Allen, David W.;, Assignee: Edward Wayne, Inc. (Overland Park, KS) |
Reinforcing system for a door frame
Therefore, one object of this invention is to provide an improved strike capable of providing reinforcement against attempted forced entry through a doorway. Accordingly, an improved strike having a p... Read More
Inventors: Camperelli, James A.;, Assignee: |
Door hardware interconnected with overlying reinforcement plate
OF THE PREFERRED EMBODIMENTS Turning initially to FIG. 1, the door assembly 10 selected for illustration is designed to be installed within a suitable opening (not shown) defined within a building fr... Read More
Inventors: Olberding, Ronald E.; Allen, David W.;, Assignee: Edward Wayne, Inc. (Overland Park, KS) |
Clip-on wooden drop ceiling
OF THE PREFERRED EMBODIMENT The normal type of metal T-rail drop ceiling system is shown in partial view in FIGS. 1 and 2. This type of T-rail system involves a T-rail 1. The Tee is inverted as shown... Read More
Inventors: Adams, Joseph E.;, Assignee: Wood Ceilings, Inc. (Maryland Heights, MO) |
Roofing laminate fastener assembly
What is claimed is: 1. A fastener assembly comprising: a flanged cap nut; a keeper nut, and a toggle bolt, wherein said toggle bolt comprises a threaded stem component, and a toggle nut component thre... Read More
Inventors: Gasser, David A.;, Assignee: G.B.R. Enterprises (Wooster, OH) |
Solely wall mounted drop ceiling structure
I claim: 1. An improved wall mountable member structure for facilitating installation of a wholly room-wall-supported drop ceiling without disturbing the original room ceiling and in such a manner as ... Read More
Inventors: Schwartz, Daniel P.;, Assignee: |
U-Shaped plasterboard
We claim: 1. A construction element of plaster comprising: a plate having opposed faces, reinforcements distributed throughout the greater part of the thickness of the plate, and folding lines paralle... Read More
Inventors: Buck, Yves; Delcoigne, Adrien;, Assignee: Isover Saint-Gobain (Neuilly, FR) |
Tile mounting system
We claim: 1. A tiling system which comprises the provision of a first matrix for use in tiling, the first matrix defining an apertured portion for adhesive attachment to a surface to be tiled, the ape... Read More
Inventors: Rea, Philip L.; Bagshaw, Stanley R.;, Assignee: |
Method and apparatus for the measurement of plant density for the control of harvest machines
According to the invention, this purpose is achieved for a method as initially described above, in that the ultrasonic field created takes the form of at least one intermittent ultrasonic beam of freq... Read More
Inventors: Homburg, Helmut;, Assignee: Firma Gebr. Class Maschinenfabrik GmbH (DE) |
Lawnmower with grass collection container
The object of the present invention is to develop a lawnmower of the bottom entry type so that, upon conveyance of grass from below, via a mouthpiece, the level of grass indicator at all times gives a... Read More
Inventors: Kolb, Walter;, Assignee: Wolf-Gerate GmbH (DE) |
Hay conditioning unit
OF THE PREFERRED EMBODIMENT OF THE INVENTION Shown in FIG. 1 is a hay conditioner 10 embodying the present invention. The hay conditioner 10 dries hay as that hay is moved through that conditioner us... Read More
Inventors: Herron, Harold S.;, Assignee: |
Drag bit
The present invention obviates the above-mentioned problems by providing a drag bit that eliminates the disorientation and dislodging of cutting elements from the bit body. In its broadest aspect, the... Read More
Inventors: Vezirian, Edward;, Assignee: Smith International, Inc. (Newport Beach, CA) |
Eccentric counterbore for diamond insert stud
It is an object of this invention to provide a means for backup support for each of a multiplicity of diamond insert studs positioned in the face of a diamond drag bit. More specifically, it is an obj... Read More
Inventors: Morris, John F.; Worrell, Robert V.;, Assignee: Smith International, Inc. (Newport Beach, CA) |
Insert retention and cooling apparatus for drag bits
It is an object of this invention to provide a means to prevent rotation of a diamond studded insert while, at the same time, providing a means to cool and clean each insert positioned in the face of ... Read More
Inventors: Upton, Robert G.;, Assignee: Smith International, Inc. (Newport Beach, CA) |
Drill bit with self cleaning nozzle
One of the objects of this invention is to provide a new and improved drill bit having removable and replaceable nozzles with a self cleaning configuration. Another object is to provide a drill bit ha... Read More
Inventors: Radtke, Robert P.;, Assignee: Strata Bit Corporation (Houston, TX) |
Drill bit
The present invention is concerned primarily with solving the problems previously encountered in metallic body drag bits utilizing PDC type cutting members and, more particularly, with specific attent... Read More
Inventors: Barr, John D.; Fuller, John M.;, Assignee: NL Industries, Inc. (New York, NY) |
Method of manufacturing cutter elements for drill bits
In the method of the invention, a composite compact is bonded to a mounting stud of the type used to mount the compact as a cutter element in a drill bit. The composite compact is obtained commerciall... Read More
Inventors: Whanger, James R.; Staudenmayer, Ralph;, Assignee: Hughes Tool Company--USA (Houston, TX) |
Analytical balance with scale on top and with weighing chamber lock
OF THE INVENTION FIG. 1 shows the analytical balance in a load acceptance position. Both plates 2, 3 of the upper closing element are wide open and balance scale disk 6 is raised by lifting element 7... Read More
Inventors: Knothe, Erich; Melcher, Franz-Josef; Dardat, Klaus; Maaz, Gunther;, Assignee: Sartorius GmbH (DE) |
Self-aligning scale assembly and method
A new and improved scale assembly includes a platform which is supported by a plurality of force transmitting assemblies. The force transmitting assemblies and platform cooperate to automatically cent... Read More
Inventors: Dillon, Benny N.;, Assignee: |
Weight scale utilizing a capacitative load cell
We claim: 1. A platform scale comprising a supporting structure, a platform on the supporting structure for movement relative to the supporting structure in response to a weight placed on the platform... Read More
Inventors: Harrington, Richard H.; Krapf, Charles W.;, Assignee: |
Self-adjusting weighing system
The present invention is designed primarily to weigh very light masses and discloses a third way of handling the problem of off-center pan loading. This technique is a self-adjusting one in which the ... Read More
Inventors: Borchard, John S.;, Assignee: |
Rotary bit with ridges
We claim as our invention: 1. Rotary bit for drilling a hole in a subsurface formation, said bit comprising a body with central axis, a plurality of mud flow channels arranged in the outer surface of ... Read More
Inventors: Feenstra, Robijn;, Assignee: Shell Oil Company (Houston, TX) |
Drilling mud cleaning system
In accordance with the invention, a drilling mud cleaning system is provided which efficiently separates the fluid, barite and/or refuse. The system is low in capital, energy and maintenance costs. Th... Read More
Inventors: Elmquist, Steven A.; Boesger, Leonard E.;, Assignee: W. S. Tyler, Incorporated (Mentor, OH) |
Material removal tool with multiple cutting edges
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims. 1. In a rotary material removing tool, a combination comprising a base member having a periphe... Read More
Inventors: Sawluk, Wlodzimierz;, Assignee: Ernst Winter & Sohn (Hamburg, DT) |
Deep-bore drilling machine
The object of this invention is to develop a deep-bore drilling machine of this type in which not only can deep-bore drilling be conducted --by using a deep-bore drilling tool or bit --but further tha... Read More
Inventors: Schmid, Wolfgang;, Assignee: TBT Tiefbohrtechnik GmbH & Co. KG (DE) |
Diamond drilling bit for soft and medium hard formations
I claim: 1. A bit comprising a central bore and a face formed about said bore, fluid channels extending from adjacent the center of the bit to the gage of said bit and separating said face into wedge ... Read More
Inventors: Rohde, Heino J.; Juergens, Rainer;, Assignee: Christensen, Inc. (Salt Lake City, UT) |
Drill tool for deep wells
What is claimed is: 1. Rotary drill tool for deep well drilling, consisting of a steel connecting body which includes a threaded stud to connect with a drill bed or similar rotary drive, whose head is... Read More
Inventors: Jurgens, Rainer; Rathkamp, Hermann;, Assignee: Christensen, Inc. (Salt Lake City, UT) |
Apparatus for hard rock sidewall coring a borehole
The present invention provides an apparatus for cutting core samples from the sidewall of a borehole. A core drilling mechanism in an elongate housing is rotated from a vertical storage position to a ... Read More
Inventors: Hebert, Joel J.; Chuang, Jo-Yu;, Assignee: Schlumberger Technology Corporation (Houston, TX) |
Screen Walls 
