Nut Or Screw Fulcrum Patents (Class 81/93)
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Patent number: 7546784Abstract: A pair of pliers include a shank, a fixed jaw locked onto the shank, and a movable jaw pivotally mounted on the shank and movable relative to the fixed jaw. Thus, the first contact point of the locking teeth of the fixed jaw and the second contact point of the first engaging teeth of the first toothed face of the movable jaw have a larger friction with a workpiece by a special angle design of the fixed jaw and the movable jaw to enhance the clamping force of the fixed jaw and the movable jaw on the workpiece, so that the workpiece is clamped by the fixed jaw and the movable jaw exactly and closely to prevent the workpiece from being slipped from the fixed jaw and the movable jaw during operation of the pliers.Type: GrantFiled: November 27, 2007Date of Patent: June 16, 2009Assignee: MH CorporationInventor: Chiu-Ying Yu
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Patent number: 6164162Abstract: A tool is disclosed for use in installing and removing a resilient ring clamp having overlapping ends, each end having a radially extending lug thereon. The tool squeezes the lugs of the clamp to increase the circumference of the clamp so that the clamp can be slipped over a hose. A frictional drive assembly moves a shoe rod outwardly from a housing such that a shoe on the distal end of the shoe rod moves toward a hook on the distal end of a hook rod extending from the housing, thus squeezing the lugs of the clamp between the shoe and the hook. The hook rod can be selectively positioned around the shoe rod so that the hook and shoe can be oriented in a selected direction without axially rotating the housing.Type: GrantFiled: January 19, 1999Date of Patent: December 26, 2000Inventor: Rade Furundzic
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Patent number: 6128975Abstract: Adjustable pliers for a constant tension hose clamp include a pair of arms pivotally connected together at intermediate portions of the arms. Each arm has a handle portion and a gripping portion, and the gripping portions have opposed ends that are spaced apart a predetermined distance. Each end has a grasping element, with each grasping element adapted to hold one actuating member of the hose clamp. This enables the hose clamp to be held by the grasping elements between the gripping portions to enlarge the diameter of the hose clamp by pressing the handle portions together. One of the arms has two separate sections, a gripper section and a handle section. These sections are rigidly connected together by an adjustable rod mechanism that enables the two sections to be moved relative to each other to change the angular relationship between the two sections by adjustment of the rod mechanism.Type: GrantFiled: March 17, 1998Date of Patent: October 10, 2000Inventors: Paul E. Schley, Timothy P. Hume
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Patent number: 5946988Abstract: A tool for driving pedicle screws into vertebrae of the human spine has a shaft preferably with a handle at one end and, at the opposite end, a holder for receiving a preferably ring-shaped head which is flattened on opposite sides. The tool has a first clamping jaw (18) secured to the shaft (12), and a second loose clamping jaw (20) including a lateral projection which is tiltably received by the first clamping jaw (18). The tool has an axially slidable actuating member (32) which is guided along the shaft (12). The front end of the actuating member (32) engages the rear end of the second clamping jaw (20) and is preferably axially urged towards the second clamping jaw (20) by a threaded driving means.Type: GrantFiled: July 29, 1996Date of Patent: September 7, 1999Assignee: Howmedica GmbHInventor: Peter Metz-Stavenhagen
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Patent number: 5865072Abstract: A clamp expander for an annular hose clamp includes first and second jaws for engaging first and second ends of the hose clamp. The jaws are mounted on ends of first and second plier sections for translation between open and closed positions thereof. A modified embodiment clamp expander includes first and second arms mounting the first and second jaws. The first arm is fixedly connected to a guide rod and the second arm is slidably mounted thereon for translation between open and closed positions by a draw bolt which connects the arms.Type: GrantFiled: June 20, 1997Date of Patent: February 2, 1999Inventor: William J. Jerdee
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Patent number: 5590573Abstract: A pair of jaw fittings for mounting on the jaws of a pair of pliers for clamping a collar having two radially projecting tabs. The front faces of the jaws which come into abutment with the tabs include respective recessed housings each having an end wall, a bottom wall, and a top wall. The end wall of the housing in the second fitting is substantially plane. The end wall of the housing in the first fitting includes a substantially plane middle setback which leaves two lateral portions remaining that are parallel to said setback.Type: GrantFiled: March 31, 1995Date of Patent: January 7, 1997Assignee: Etablissements CaillauInventor: Pascal Detable
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Patent number: 5546835Abstract: A plier-like tool for joining flexible hosing with hose connection nipples and hose compression rings. The tool has cutouts in the jaws which allow the flexible hose to pass through. The portion of the jaws adjacent to the cutouts form a pocket structure which surrounds the compression rings on the flexible hose. When the jaws are closed, the compression rings are held in place by the pocket structure while they are pressed onto the sections of flexible hose which are joined by a hose connection nipple. The tool has an optional hose cutter for trimming the hose and optional nipple pushers for insertion of the nipples into the flexible hose.Type: GrantFiled: July 11, 1994Date of Patent: August 20, 1996Inventor: John A. Seile
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Patent number: 5507206Abstract: A tool for removing a retaining cap from a hose clamp has a handle to which is attached a retaining cap nest having a cap receiving portion for receiving the capped ears of the hose clamp, an opening in an end of the receiving portion for accepting an uncapped portion of the capped ears, and a pair of lands, one on either side of the opening, for pushing against the legs of the cap during removal from the ears. In one embodiment, the nest has a pair of symmetrically shaped half-sections attached to the jaws of a locking pliers type tool which are placed around the capped ears. When the handles of the tool are squeezed together, a nest is formed capable of retaining the cap after removal from the ears. A preferred embodiment has a handle with a hollow cylindrical jacket attached thereto surrounding a pneumatically operated rod to which is affixed a unitary nest. When in an extended position, the nest can be positioned to grasp the hose clamp retaining cap in the receiving portion.Type: GrantFiled: June 6, 1994Date of Patent: April 16, 1996Assignee: Ford Motor CompanyInventor: Michael E. Solski
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Patent number: 5253554Abstract: A power driven hose clamp tool composed generally of a handle component and an actuator component. The handle component includes an operator handle and a head connected with one end of the handle. The actuator component includes a main body which removably connects with the head and contains a power drive unit which reciprocably moves a T-bar in response to selective pressing of push button controls. Pivotally connected with the T-bar are a pair links which are in turn pivotally connected, respectively, with the near end of a pair of arms. The pair of arms are connected pivotally to the main body. The distal end of the pair of arms is provided with claws for gripping the wings of a spring tension clamp. The pair of links operate in combination with the pair of arms so as to provide a high mechanical advantage due to the scissor-like operation thereof.Type: GrantFiled: November 27, 1992Date of Patent: October 19, 1993Inventors: Salvatore J. Riera, Brent A. Thorn
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Patent number: 5209143Abstract: A reversible hose clamp tool for use with double ring spring wire hose clamps comprised of a pair of main members and a pivot which resembles pliers and operates similarly thereto. Each main member is an elongated tool member comprised of a handle section, a pivot section and a jaw section. The handle section is elongated to provide leverage to ease operation and to provide comfort to the user. If desired, it may be patterned, knurled or otherwise treated to provide an improved gripping surface or can be provided with a cushion coating which provides a protective grip for the handle and a more comfortable grip for the user. The pivot section contains a pivot bore through which is placed a pivot pin to pivotally join the pair of main members. The jaw section has a head end and sides. First and second generally rectangular cutouts, are disposed along an inside front edge of head end and laterally through its sides of the jaw sections.Type: GrantFiled: June 10, 1992Date of Patent: May 11, 1993Inventor: Paul A. Sweet
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Patent number: 5148577Abstract: A tool for forming a wire clamp using a piece of wire with a connecting loop at one end and at least one end leading from the loop. The tool has a body portion with a forward end arranged to engage the loop end of the wire for holding the loop end in a stationary position. The body portion includes a tension member for pulling the wire tightly around the article. In an embodiment of the tool, the nose end of the tool is pivotally attached to the body portion for reaching limited area spaces, and in another embodiment a wire slack take-up crank is provided on the tension member.Type: GrantFiled: August 5, 1991Date of Patent: September 22, 1992Inventor: Elmer R. Silvey
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Patent number: 5129350Abstract: Apparatus and method are provided for indicating when a predetermined amount of tension has been applied to a band by a banding tool. The apparatus includes a housing, a lever for transferring pressure, and a tension indicator. As a tool handle is rotated to apply tension to a band, pressure is applied to the lever. When the tension applied is substantially equal to the predetermined tension, the lever pivots and activates the indicator, indicating to the operator of the banding tool that sufficient tension has been applied. In one embodiment, the indicator extends into the path of the rotating tool handle, thus preventing the operator from applying further tension to the band.Type: GrantFiled: September 6, 1991Date of Patent: July 14, 1992Assignee: Band-It-Idex, Inc.Inventor: Miklos B. Marelin
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Patent number: 5125911Abstract: For use in preventing spillage in a continuous ambulatory peritoneal dialysis apparatus, a two-part spike holder which automatically occludes a flexible tubing connected to the hollow spike as the spike is mounted in the holder, the two parts of the spike holder being pivotally interconnected and biased toward one another.Type: GrantFiled: February 20, 1990Date of Patent: June 30, 1992Inventors: Richard W. Grabenkort, William L. Rudzena
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Patent number: 5125296Abstract: An ergonomic, pneumatically-powered hand tool for installing hose clamps comprises an elongated barrel projecting from a pistol grip housing which pivotally mounts a locking jaw assembly for securely grasping clamps to be installed. A trigger-controlled valve assembly coupled to a source of high pressure air powers the tool. The jaw assembly comprises a pair of identical jaws pivotally coupled together to define a clamp-receptive mouth. Each jaw comprises a plurality of serially interconnected channels defined along the gripping end of each jaw, adapting the mouth to both accommodate clamps of varying sizes and to restrain clamps as they are compressed during installation. The gripping ends project outwardly beyond the barrel, and are spaced apart from the opposing terminal ends. An integral bearing plate is defined between the terminal end and the gripping end. The terminal ends of the jaws are resiliently biased together by a spring.Type: GrantFiled: July 29, 1991Date of Patent: June 30, 1992Assignee: Micro Plastics, Inc.Inventors: Danny M. Nelson, Carl Ramey
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Patent number: 4919017Abstract: A hose clamp tool has juxtaposed jaws on one end of elongated members, one of which slides within the other to move the jaws toward each other to force the lugs of a hose clamp toward each other. That expands the circular part of the clamp, allowing it to fit over the end of a hose. Longitudinal movement of one elongated member relative to the other is accomplished by a handle pivotally mounted on one of the members extending toward the jaws. One end of a link is pivotally connected to an intermediate part of the handle, and the other end of the link is pivotally connected to the other member.Type: GrantFiled: January 27, 1989Date of Patent: April 24, 1990Inventor: William E. Thomas
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Patent number: 4884432Abstract: In combination with a manually operated crimper for tightening ear clamps in which the tool has two complementary lever arms with handles at one end and jaw portions at the other end of a backup disk. A disk is positioned in a slot in the arms of the tool and encircles and rotates around the tool pivot pin. An arcuate anvil is positioned at the outer periphery of the disk and forms an outer backup surface. Anvil shoulders at each end of the anvil coact with shoulders on the arms. The disk is rotated and held adjacent the jaw portions as the jaws close for engaging the clamp ear.Type: GrantFiled: February 21, 1989Date of Patent: December 5, 1989Assignee: Camco, IncorporatedInventor: Arthur I. Watson
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Patent number: 4754668Abstract: A pincer-like tool for tightening clamps of the type provided with overlapping band portions each including an outwardly projecting embossment that extends generally in the circumferential direction of the clamp and offers an engaging surface disposed substantially transverse to the circumferential direction and located at the end of the embossment remote from the free end of the respective band portion.Type: GrantFiled: July 21, 1986Date of Patent: July 5, 1988Inventor: Hans Oetiker
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Patent number: 4747432Abstract: A tool for forming a wire clamp includes an elongate member having projections extending transversely from one end thereof, the end including a groove receiving a portion of a wire defining a straight crossover portion extending between circular portions formed respectively by wrapping the wire around the projections. A tool for clamping or banding the preformed wire over a hose or other item to be clamped comprises a stationary block shaped part pivotally secured to a movable part at one end thereof. A threaded puller extends through the stationary part and one end thereof contacts the movable block intermediate the pivot and an opposite end containing a groove receiving the wire crossover portion. Opposite end portions of the wire are wrapped around a pair of posts, respectively, on the stationary block.Type: GrantFiled: November 26, 1986Date of Patent: May 31, 1988Inventor: Barney D. Chrisley
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Patent number: 4724729Abstract: A pincer-like tool for tightening clamps in which two pincer-like members are pivotally connected with each other, and connected with two actuating handle members, each pincer-like member includes engaging surface means near one end thereof for engagement with a corresponding surface of the clamp and a connecting portion near the other end thereof for connection with a respective actuating handle member so that movement of the handle members and therewith of the connecting portions toward each other will cause movement of the engaging surface means toward each other for purposes of tightening the clamp; the pincer-like members are thereby assembled from standard stamped-out steel parts which include nose-like end portions forming the engaging surface means.Type: GrantFiled: September 18, 1985Date of Patent: February 16, 1988Inventor: Hans Oetiker
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Patent number: 4708034Abstract: A pincer-like tool for tightening clamps of the type provided with overlapping band portions each including an outwardly projecting embossment that extends generally in the circumferential direction of the clamp and offers by its opening an engaging surface disposed substantially transversely to the circumferential direction and located at the end of the embossment remote from the free end of the respective band portion.Type: GrantFiled: September 15, 1986Date of Patent: November 24, 1987Inventor: Hans Oetiker
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Patent number: 4646591Abstract: A band tightening tool is provided having a pair of stamped members, each of which has the same structural configuration. The two stamped members are fixedly joined together by a welding process. When connected together, the two stamped members define a channel, a pair of cross holes and an open area. The two cross holes receive a band tightening mandrel having a mandrel slot. The cross holes and mandrel include cooperating retaining elements to prevent unwanted separation of the mandrel from the cross holes. To tighten a band about an object, the end portion of the band is inserted through the channel defined by the two stamped members so that the band end portion can be attached to the band tightening tool. Rotational movement of the band tightening mandrel causes the band to be tightened about the object. In so doing, the open area between the channel and the cross holes acts to accommodate the band portions being wrapped around the mandrel.Type: GrantFiled: February 25, 1985Date of Patent: March 3, 1987Assignee: Band-It-Houdaille, Inc.Inventor: George A. Jansen
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Patent number: 4633558Abstract: A tool for applying a spring clamp comrising a pair of handles, a pin joining said handles for relative rotation, a pair of jaws on said handles, a cam carried by one of the jaws and a pair of side plates pivotally supported by the other of said jaws having cam control tracks therein for effecting and controlling radial movement of said cam to complete closure of said clamp.Type: GrantFiled: February 27, 1986Date of Patent: January 6, 1987Assignee: Wittek Industries, Inc.Inventor: George E. Spaulding
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Patent number: 4610187Abstract: A tool for applying and removing a spring clamp comprising a pair of handles, a pin joining the handles for relative rotation and a pair of jaws on the handles. One of the jaws is relatively thin in radial dimension relative to the axis of rotation thereof and the other of the jaws is relatively thick in radial dimension relative to the axis of rotation thereof whereby said tool is reversible to effect closure and opening of the spring clamp.Type: GrantFiled: November 22, 1985Date of Patent: September 9, 1986Assignee: Wittek Industries, Inc.Inventor: George E. Spaulding
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Patent number: 4561475Abstract: The present invention relates to a strap tightening tool adapted to be used with straps of a variety of thicknesses including relatively thin metallic straps and thicker polymeric straps. The tool includes a spring biased pawl having two or more sets of teeth, the teeth of each set being offset from the pivot point of the pawl by varying distances so as to enable an appropriate set of teeth to clamp straps in accordance with the thickness thereof. The device may include a guide to extend between the pulling mechanism and the buckle of the strap to assure that the strap emerges from the buckle at an exit angle essentially parallel to the passage through the buckle.Type: GrantFiled: March 30, 1984Date of Patent: December 31, 1985Inventor: Milton Hinden
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Patent number: 4449429Abstract: A power tool for tensioning hose clamps of the type wherein one end portion of a strap overlies the other end portion and has a laterally extending tip which can break away or bend in response to the application of a pull sufficient to effect satisfactory tensioning of the looped central portion of the strap around a hose or the like. The tool has a barrel with an inlet receiving the one end portion so that the tip can be engaged by the shoulder of an entraining element mounted at the front end of a retractible piston rod. The tensioning element is reciprocable in and relative to a bearing which is reciprocable in the barrel by interposition of friction reducing rolling elements. When the piston rod is retracted, the shoulder of the tensioning element moves against the tip of the one end portion of the strap and exerts a pull upon the tip while moving with the bearing so that the force which is needed to bend or break the tip at least approximates the maximum force that is necessary to retract the piston rod.Type: GrantFiled: July 2, 1982Date of Patent: May 22, 1984Assignee: Rasmussen GmbHInventors: Heinz Sauer, Willi Stichel, Gerhard Wachter
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Patent number: 4306592Abstract: A tool for use in applying a soft steel wire clamp, having a hook at one wire end through which the tail end of the wire extends to form an constrictable annulus of at least one loop, has a nose portion for engaging the wire loop, a lengthwise channel extending rearward of the nose portion in alignment with a bore in the rear portion to enable the tail to be gripped by a pulling device for constricting the loop, and a hook engaging pawl pivotally mounted in a position to swing along a path over the channel from a first remote position into a fixed position close thereto; whereby, with the tail of a clamp extending lengthwise of the channel and through the bore and the loop portion adjacent the hook in engagement with the tip of the nose portion, the actuation of the pulling device, while contracting the loop, causes relative arcuate movement between the loop and the tail such that the proximate portion of the tail is lifted from the channel and bends about the hook whereupon further actuation of the pulling dType: GrantFiled: February 28, 1980Date of Patent: December 22, 1981Inventor: Sergey Drage
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Patent number: 4162640Abstract: A pair of pliers are provided for fastening a split annular hose clamp whose opposite ends are provided with ratchet teeth adapted for interlocking engagement. The pair of pliers has a pair of primary jaw members used in fastening the hose clamp and a pair of secondary jaw members used for removing the hose clamp by applying force in opposed lateral directions to the interlocked members. The primary jaw members and the secondary jaw members are located on the same side of the pivot stud remote from the plier's handles.Type: GrantFiled: April 3, 1978Date of Patent: July 31, 1979Assignee: K-D Manufacturing CompanyInventor: Robert L. Arnold
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Patent number: 4122733Abstract: A hose clamp machine includes a frame carrying a reciprocating air motor, the piston shaft of which is coupled to one end of a lever which is pivoted approximately midway between the ends thereof on the frame, the other end of the lever being coupled by linkage to a band puller housing for slidably reciprocating it along a slide rod. A hose with a hose clamp band looped thereabout is mounted beneath the distal end of the slide rod with the free end of the band fed through a ratchet-type holding dog to a pulling dog in the puller housing. Pivotal movement of the lever during a driving stroke of the motor pulls the puller housing to tension the band, after which a punch head is driven into the band collar to lock the clamp in the tensioned condition about the hose. Cushioning means is provided on the piston shaft to cushion the driving stroke when the band is severed while under tension.Type: GrantFiled: August 1, 1977Date of Patent: October 31, 1978Assignee: Punch-Lok CompanyInventors: John E. Ott, Marvin O. Bates
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Patent number: 4091694Abstract: A tool for rapidly clamping a repair clamp tightly around a pipe. The tool has a two-stage operation, the first for rapidly taking up any slack, and the second for applying the necessary clamping force for tightening the clamp on the pipe.Type: GrantFiled: July 18, 1977Date of Patent: May 30, 1978Assignee: Rockwell International CorporationInventor: Thomas D. Parrish
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Patent number: 4084625Abstract: A tool for forming a wire clamp includes a tube having its forward end somewhat flattened and grooved, and a pulling screw is slidable in the tube with a roll pin projecting through the slots and pullable by a wing nut screwed thereon. A waterproof cable splice includes flanged elastomer grommets projecting into a plastic sleeve and pressed on insulating jackets of two cables having conductors connected by a crimped conductive sleeve. Hose type clamps compress the end portions of the plastic sleeve to seal them to the grommets and to compress the grommets onto the jackets to seal them thereto.Type: GrantFiled: August 3, 1976Date of Patent: April 18, 1978Inventor: Claude E. Brinegar
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Patent number: 4083086Abstract: Apparatus for clamping the hose of a nipple including a clamp of the type having a band with interengageable barb means and apertures spaced from one another for accommodating maintenance of the band in a clamping position around a hose. A tightening device for accommodating assembly and disassembly of the band around a hose is provided, which tightening device includes a rigid housing having apertures engageable with barbs on the band and a rigid member having teeth for engaging in apertures in the band slidably guidably carried by the rigid housing. A manually rotatable gear wheel is pivotally mounted in the fixed housing and includes gear teeth engageable with gear teeth at the rigid bar such that pivotal movement of the gear wheel forces the rigid bar to move in the circumferential direction with respect to the rigid housing.Type: GrantFiled: April 16, 1976Date of Patent: April 11, 1978Inventor: Hans Oetiker
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Patent number: 4020719Abstract: Method and apparatus for applying a permanent clamp to secure a hose end to a hose coupling provide for equalizing the radial forces between the clamp and the hose and for deforming part of a strap or wire clamp to lock its open free end to its loop or closed end.Type: GrantFiled: May 19, 1976Date of Patent: May 3, 1977Assignee: The Goodyear Tire & Rubber CompanyInventors: Stanley J. Houck, Michael W. Smith
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Patent number: 4003238Abstract: A tool for installing hose band clamps provided with at least one ear, which is equipped with two pincer jaws movable relative to one another for pressing the roots of the ear against one another and thereby clamp together the band clamp. A spacing member provided with an aperture for the ear is provided in the tool which shields the tool clamping jaws and holds the hose onto a nipple while the ear is being contracted so as to prevent the hose material from being squeezed into the space between the roots of the ear.Type: GrantFiled: July 8, 1975Date of Patent: January 18, 1977Inventor: Hans Oetiker
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Patent number: 3981049Abstract: A clamp for clamping a hose onto a nipple by means of a band adapted to be locked which is provided at its upper band end with perforation apertures and includes at least one barb at its lower band end which engages in one of the perforation apertures when the band is placed about the hose; the band is also provided at its lower end, on the side toward the band end with respect to the barb, with further perforation apertures of the same type and is additionally provided with a slot at its upper end which is located in the circumferential direction toward the center of the band with respect to the perforation apertures provided thereat; at least one section of the further perforation apertures disposed adjacent the lower band end is located within the area of the section of the slot disposed adjacent the upper end of the band when the band is placed about the hose; the upper end of the band is provided between its perforation apertures and the barbs of the lower end of the band with at least one further barb pType: GrantFiled: April 1, 1975Date of Patent: September 21, 1976Inventor: Hans Oetiker