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...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.

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Class 24/129A - Slack adjuster


Subclass of Class 24 - Buckles, buttons, clasps, etc.
No. of patents: 36
Last issue date: 07/17/2007


NumberTitleIssue Date
7243399Wrapping device for packages
A wrapping device for packages includes a tying member having two or more arms each having a longitudinal bore and an orifice perpendicular to and communicating with the bore, and a tying cord engaged into the bores and the orifices of the arms, to form two right an...
07/17/2007
7234686Fail-safe cleat with automatic in-line locking cam and quick-release slot
A failsafe device for raising/lowering articles includes a frame and a fastener for attaching the frame to a ceiling or wall to elevated an article above the floor. A pulley or sheave is mounted on the frame about a substantially horizontal axis when the frame is mo...
06/26/2007
7229051Support device for guidewires and catheters and method of use thereof
A support device for supporting at least one medical wire adjacent a supporting surface. The support device comprises a plate-shaped holder portion defining a peripheral edge, the holder portion comprising a support slot defining a loading opening made in the periph...
06/12/2007
7073780Fail-safe cleat with automatic in-line locking cam
A failsafe cleat with automatic in-line locking cam includes a frame having proximate and a remote sides on substantially opposite sides of the frame and formed with a passageway, extending between said proximate and remote sides, for receiving a line that can move ...
07/11/2006
7055785Wire carrier apparatus and systems for supporting objects for work performed on elevated structures
In one embodiment, a wire carrier structured to support at least a portion of at least one supported object is provided. The wire carrier includes an elongated strap having a proximate end and a distal end, the distal end of the elongated strap having a plurality of...
06/06/2006
6581250String fastening device and cloth to which the device is attached
The present invention provides a string fastening device which allows a string to be threaded thereinto easily, facilitates tightening of the string and enables the string to be gripped softly and captured accurately. The string fastening device can be us...
06/24/2003
6473944One-way clutching methods between a ligature and a frame and their applications
This invention discusses methods for forming an adjustable look between a ligature and a frame. Three methods of 2-Hole, 3-Hole and, Loop Turning along with their applications are discussed. Means for easy unlocking of the system are provided. Some of the...
11/05/2002
6470542Device and method for tassels
A method and apparatus of preserving and protecting decorative tassels after they have become unsightly from wearing of an item, or to prevent their becoming so, particularly on shoes to which they are attached. Typically, one or more tassels are made up ...
10/29/2002
5987707Bungee cord shortening device
A cord retaining device consisting of a T-shaped housing with three legs. Through holes extend through each leg with two of the holes in two legs being aligned with each other. The third or other leg's through hole intersects with the two aligned holes. A...
11/23/1999
5644821Arrangement for attachment of a stop element to a hoist cable or chain
A molded plastic ball stop element is adapted to be clamped to a cable or a chain particularly for an air balancing hoist, the ball formed in two pieces fastened together with flat faces in abutment. Pairs of grooved removable steel inserts grip a cable, ...
07/08/1997
5511291Power brake descender for rappelling
A rappelling descender having an elongated, substantially hexagonal ring, a capstan attached to a first long side of the ring, and a hand grippable handle attached to a second long side of the ring, opposite the capstan. The hand grippable handle is at le...
04/30/1996
5511290Elastic cord tensioning and length adjusting apparatus
The elastic cord tensioning and length adjusting apparatus is designed to allow the user to have much more flexibility with a single length elastic cord, rather than using a number of cords of different lengths. The apparatus can adjust, both the tension ...
04/30/1996
5381589Load securing arrangement
A load securing arrangement includes an elongated flexible rope and a plurality of couplers attached to the rope. Each coupler has an eye portion and a hook portion rigidly attached at one end to the eye portion. The eye portion defines an opening thereth...
01/17/1995
5366327Tiedown hitch
A tiedown hitch for trucks and the like includes a medial body portion having a longitudinal axis, with a hook portion extending from one end and an eye portion extending from the opposed end. An interior hook surface is provided with an insert having a r...
11/22/1994
5307966Strapping structure for an instrument and the like
A strapping structure for an optical instrument such as a camera, a video camera, a binocular and so on, which is capable of performing as more than two straps having different functions such as a grip strap and a shoulder strap. The strapping structure c...
05/03/1994
5255866Apparatus for isolating a cord section from tension
A stair relief device is positioned around connecting plugs, splice or the like to relieve the contained plugs, splice or the like from any tension which is in the cord. It consists of a rigid hollow cylinder having two rigid circular flanges, extending o...
10/26/1993
5226216Method and apparatus for a cable clamp assembly
A clamp assembly with a releasable bail for securing and suspending cables, drop wires or the like that utilizes a locking structure cooperating with an aperture in a tail of the clamp assembly to secure and lock the releasable free end of the bail to the...
07/13/1993
5226836Cable strain relief device
A strain relief device for a cable terminating in a plug, an outlet mounted on a base and a connection mechanism to connect said plug to said outlet. The device includes at least one pin extending from the plug, the pin being spaced from the connection me...
07/13/1993
5195216Hooking clasp for a cord-like thing
A hooking clasp for a cord-like member is provided which can simply and securely bind objects and furthermore, can be used repeatedly. The hooking clasp of the invention has a structure in which two elastic flat plates are fixed at their center portions, ...
03/23/1993
5140761Dragline bucket line protection device
In a support assembly for an excavating dragline bucket controlled by a hoist line and a drag line, the bucket having opposite side walls and an open forward end, a line protection device includes a sleeve for encircling the hoist line adjacent the bucket...
08/25/1992
5092663Apparatus and method for maintaining slack of fiber optic cable or the like
An apparatus for supporting and maintaining slack of fiber optic cable or the like in an aerial installation comprises an elongate channel member having an arcuate section and a plurality of linear sections for receiving the slack and means for securing t...
03/03/1992
5009441Ski board binding
A binding assembly for a structure which is designed to facilitate rapid movement along the surface of the earth such as a ski board for water wherein the binding assembly includes an elastic cord which when stretched permits tightening of the binding ass...
04/23/1991
5008983Portable cleat
A portable cleat including a primary connector element having a principal axis and opposed ends and a secondary connector element attached to the primary connector element at at least one of the ends, said secondary connector element having angularly disp...
04/23/1991
4976013Rope-tying device and method
A rope-tying device is disclosed which facilitates convenient and efficient formation of a loop in the free end portion of a rope. Economical fabrication and efficient use of the device is facilitated by its configuration as a unitary, generally cylindric...
12/11/1990
4912816Slide and line closure device for securing watercraft to a mooring post davit, column or the like
A device for fastening a line to an object, such as a mooring post or the like is of unitary construction having a bore therethrough through which a loop in the line is threaded. The device includes a cylindrical barrel portion which is adapted to be grip...
04/03/1990
4910834Rope tie-down loop
A quick connect adjusting loop for a cargo tie-down rope comprises a body of substantially rigid, high strength material having a first portion forming a loop through which a loop of a tie-down rope extends and a second portion forming slip lock adjacent ...
03/27/1990
4860720Bow string release device
A hand held, trigger-actuated bow string release device has an elongate transversely flexible hand grip member coupled to and extending rearwardly from the rearward end of the body of the device. The hand grip member is coupled at its rearward end to a pl...
08/29/1989
4769874Line retension device
The line retension device includes a relatively thin plate having means defining an elongated passageway for receiving the line in a friction tight manner. The cross-sectional area of at least a portion of the passageway is complementary shaped and sized ...
09/13/1988
4658814Endotracheal tube holder
An endotracheal tube holder has a cord with a loop through which the endotracheal tube extends. A tube with slits surrounds the cord adjacent the loop to secure the endotracheal tube in the cord when the tube is placed in the mouth and throat of the patie...
04/21/1987
4506417Fastener for string
A fastener for securing in position a string to be used for gathering the skirt of a coat or the open edge of a pouch, for example, is constructed of a housing provided therein with a blind cavity, a sliding member admitted into the blind cavity of the ho...
03/26/1985
4497457Line holder
A line holder is provided which permits using one hand to selectively engage and disengage a line as it is unwound from a reel. A line lock in the form of a hook assembly is secured to the reel so that angular movement of the reel to first and second posi...
02/05/1985
4477948Dead-end messenger wire holder
The invention is concerned with a device for holding a cable suspended from a support, the cable having an aerial support wire connected therealong for supporting same with an end portion thereof securely held by the device. The device of the invention co...
10/23/1984
4468015Wire tensioning apparatus
The invention provides a wire tensioning member for providing spring tension in a fence wire. There is provided a spring steel member of a resiliently deformable compound curvature, with the wire being attachable to one end, and the other end being provid...
08/28/1984
4406042Tubing clip
A tubing clip is disclosed herein which comprises a body member forming a pair of channels through which a flexible tube may be passed, each of which is provided with a means for narrowing said channel at one end which narrows the channel sufficiently to ...
09/27/1983
4222157Rope tightener
A rope tightener for a rope under tension such as a tent rope formed from a single piece of plastic forming two pairs of parallel legs, the respective legs of each pair having opposed hooks formed at the end of the leg to cooperate in forming a hole throu...
09/16/1980
4197615Shortening device
This invention relates broadly to an apparatus for shortening wires, cables and the like without requiring the disconnection of such wires and cutting off the ends thereof to achieve the shortening. The apparatus consists generally of a sheet metal or the...
04/15/1980
 
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