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730results about How to "Quick insert" patented technology

Quick insertion and removal fastener

InactiveUS6712574B1Improve overall strengthImproved configurationNutsBoltsFastenerLeaf spring
A quick insertion fastener has an internally threaded first member ("nut") adapted to be quickly attached and tightened on an externally threaded second member ("bolt"). The nut is formed with a casing with an internal frusto-conical front surface, a plurality of threaded shell segments contained in the casing having external frusto-conical front surfaces which abut the front surface of the casing, a spring member positioned at a rear part of the casing which elastically holds the rear ends of the shell assembly together, and an end retainer provided at the rear part of the casing having a taper for engaging the rear ends of the shell assembly and displacing them radially apart when the shell assembly is displaced axially toward the end retainer by insertion of the bolt. This allows the bolt threads to move without interference past the internal threads of the shell segments. When the insertion force of the bolt is released, the spring member urges the shell segments together so that the internal threads of the shell assembly become engaged with the bolt, and the nut can be tightened on the bolt. The spring member may be a radial spring or O-ring, or in the alternatively may be a wave compression spring, segmented spring, circumferential or axial leaf springs, or a flexure spring formed integrally with the end retainer. The nut may also be configured with an external sleeve member for pulling the shell assembly back relative to the nut casing for quick disengagement from the fastener.
Owner:HONEYBEE ROBOTICS

Rapidly locking building/lock components, bridge keys and locking keys to construct uniform whole locked building members and entire locked structures on-the-fly

A plurality of adjacent, aligned, shaped hollow uniform building components, each having four separate distinct key channels are assembled together with a plurality of friction fitting locking keys to accomplish at least three separate distinct locks which become uniform whole friction fitting structural buildings upon alignment of like side surfaces or like end surfaces of uniform building components, together with friction fitting insertion and alignment of one of four separate and distinct shaped uniform bridge keys, then friction fit insertion of the primary locking keys into and through the primary key channels of adjacent and/or abutting uniform building components and uniform bridge keys, thereby rapidly achieving the primary lock and key joint, being the primary finished bonded joint and the primary lock of this invention. The second and third separate distinct locks of this invention are accomplished using corner locking keys to achieve the corner lock and/or center bore hole locking keys to achieve the center bore hole lock. The interior or exterior of a friction fitting structural building is enhanced with other components, including transverse locking keys to form a transverse lock, and key channels may also contain building improvement components.
Owner:THOMAS KEITH E

Visual-content-based method for establishing multi-level semantic map

The invention discloses a visual-content-based method for establishing a multi-level semantic map. The visual-content-based method comprises the following steps: gathering images shot by a robot wandering in an environment and labeling the scenes of spots for photography; constructing a hierarchical vocabulary tree; constructing a knowledge topological layer so as to grant knowledge to the knowledge topological layer; constructing a scene topological layer; constructing a spot topological layer. According to the visual-content-based method, a visual sensor is utilized for constructing the multi-level semantic map for a space, and digraph structure is used on the knowledge topological layer for storing and inquiring the knowledge, so that unnecessary operation can be eliminated in a knowledge expression system, and the inserting and inquiring speed is quick; the scene topological layer is utilized for carrying out abstract division on the environment so as to abstractly divide the whole environment into subdomains, so that the image searching space and the path searching space can be reduced; the spot topological layer is utilized for storing specific spot images, the self-positioning can be realized by adopting image searching technology, and the error accumulation problem of self-positioning estimation is solved without maintaining the global world coordinate system.
Owner:猫窝科技(天津)有限公司

Sheet metal corner for duct flanges

ActiveUS20090224538A1Easy to slideStrengthen the joinder therebetweenSleeve/socket jointsFlanged jointsScrew threadMetal
The present invention relates to various embodiments of an improved high-speed corner flange connection member which is specifically shaped and designed to increase the clamping force applied to adjacent duct flanges when adjacent duct sections are connected together. In some embodiments, the corner connection members include creases or bends which allows the leg portions to be bent or angularly deflected away from such creases downwardly so as to form a bowed configuration; some embodiments include clearance holes and tap holes which are strategically positioned on the corner element such that when a pair of duct sections are positioned in end-to-end relationship for joinder, the opposed corner elements are arranged such that a clearance hole is positioned in registration with a tap hole; other embodiments include similarly shaped openings which are associated with the respective opposed corner elements; and in still other embodiments a substantially flat corner element is constructed utilizing the strategically placed clearance and tap holes so as to achieve a faster and stronger connection including the use of standard carriage type bolts. Still further, the present invention includes the use of a plurality of differently configured high-speed fastener members which are specifically designed to substantially eliminate misalignment and cross-threading issues commonly associated when using the conventional bolt / washer / nut arrangement for fastening adjacent duct sections.
Owner:H J FISCHER

Site-directed modification method for DNA viral genome

The invention provides a site-directed modification method for DNA viral genome, and the problems in the prior art are solved that induction of site-directed mutagenesis of DNA viral genome is difficult, the operation of inserting an exogenous fragment is complex, and recombination rate is lower. The site-directed modification method comprises: transfecting cells by a plasmid carrying a nuclease system, infecting by a virus, after the cells show pathological changes, collecting the cells with pathological changes, performing freeze-thaw or ultrasonic processing, and centrifuging, separating the liquid supernatant to obtain a progeny virus. The site-directed modification method is capable of realizing applications to screening of virus attenuated vaccine strains, construction of viral genetic carriers and an oncolytic virus, research on virus function sequences, and the like; during modification of the viral genome, the method helps to improve mutagenesis efficiency, accurately control DNA virus for genome site-directed mutagenesis and specific gene knockout, simplify operation steps of inserting the DNA virus carrier by an exogenous gene, and improve efficiency that the exogenous gene is integrated to the viral genome, so that the work of screening high-flux recombination viruses is convenient to conduct.
Owner:INST OF MEDICAL BIOLOGY CHINESE ACAD OF MEDICAL SCI
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