Patents Assigned to Bush Universal, Inc.
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Patent number: 4520522Abstract: A system for stiffening the shank of an insole uses a stiffener which is formed from an initially flexible and deformable strip of thermosetting resin, preferably mixed with reinforcing fibers such as fiberglass. A length of such shank strip material is applied onto the bottom of an insole and the insole, with the shank strip in place, is mounted in a special fixture. The fixture holds the strip on the bottom of the insole and also assures that the insole and shank strip will be held in the proper configuration, with the proper bend at the ball and the arch. With the shank strip and insole so held an external stimulus, such as radiant heat, is applied to the shank strip to activate and cure it in place on the insole bottom.Type: GrantFiled: September 19, 1983Date of Patent: June 4, 1985Assignee: Bush Universal, Inc.Inventor: Jules N. Allard
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Patent number: 4485951Abstract: A heel attaching machine is provided with a shoe support in the form of an elongated boot jack which is capable of handling boots as well as conventional low shoes. The machine includes a heel holddown mechanism to clamp the shoe on the support and an arrangement to withdraw the heel holddown mechanism in its entirety to a temporary, remote position which will not interfere with placement or withdrawal of a high boot on the shoe support. The machine is adapted to operate with equal facility on conventional shoes as well as high, stiff boots.Type: GrantFiled: April 15, 1982Date of Patent: December 4, 1984Assignee: Bush Universal, Inc.Inventor: Raymond M. Bowler
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Patent number: 4461101Abstract: A spring-type shank for a shoe sole is formed on the bottom of a shoe assembly during manufacture of the shoe. The heel end of the shank is formed so that it is raised slightly from the heel seat region of the insole to provide a "spring shank". The shank is formed directly on the bottom of the shoe insole from a strip of initially flexible, uncured thermosetting material which may be fiber reinforced. The spring portion at the heel end of the shank is formed by placing a wedge between the shoe insole and the heel end of the shank strip during the curing process thereby to cause the heel end of the shank strip to cure in a raised, inclined attitude, spaced from the bottom of the insole, while the more forward, remaining portions of the shank strip cure in secure attachment to the insole bottom.Type: GrantFiled: February 22, 1983Date of Patent: July 24, 1984Assignee: Bush Universal, Inc.Inventor: Steven M. LeBaron
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Patent number: 4430767Abstract: A system for stiffening the shank of an insole uses a stiffener which is formed from an initially flexible and deformable strip of thermosetting resin, preferably mixed with reinforcing fibers such as fiberglass. A length of such shank strip material is applied onto the bottom of an insole and the insole, with the shank strip in place, is mounted in a special fixture. The fixture holds the strip on the bottom of the insole and also assures that the insole and shank strip will be held in the proper configuration, with the proper bend at the ball and the arch. With the shank strip and insole so held an external stimulus, such as radiant heat, is applied to the shank strip to activate and cure it in place on the insole bottom.Type: GrantFiled: February 20, 1981Date of Patent: February 14, 1984Assignee: Bush Universal, Inc.Inventor: Jules N. Allard
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Patent number: 4403361Abstract: A method and apparatus for stripping a sleeve from a length of resin-impregnated fiberglass rovings and for cutting a length of the impregnated fibers. The invention severs and separates the sleeve in a manner which assures that the fibers will remain compact and in which substantially all of the resin remains with the fiber rovings. The material is advanced through the stripper solely by drawing on the severed sleeve and without gripping or otherwise disrupting the fibers.Type: GrantFiled: February 20, 1981Date of Patent: September 13, 1983Assignee: Bush Universal, Inc.Inventors: Raymond M. Bowler, Jules N. Allard
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Patent number: 4392266Abstract: A spring-type shank for a shoe sole is formed on the bottom of a shoe assembly during manufacture of the shoe. The heel end of the shank is formed so that it is raised slightly from the heel seat region of the insole to provide a "spring shank". The shank is formed directly on the bottom of the shoe insole from a strip of initially flexible, uncured thermosetting material which may be fiber reinforced. The spring portion at the heel end of the shank is formed by placing a wedge between the shoe insole and the heel end of the shank strip during the curing process thereby to cause the heel end of the shank strip to cure in a raised, inclined attitude, spaced from the bottom of the insole, while the more forward, remaining portions of the shank strip cure in secure attachment to the insole bottom.Type: GrantFiled: January 15, 1982Date of Patent: July 12, 1983Assignee: Bush Universal, Inc.Inventor: Steven M. LeBaron
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Patent number: 4377012Abstract: An improved pad box for use in a shoe sole attaching press supports the shoe and sole in a manner which applies pressure along the sole over a wide range of sizes and heel heights with improved, more uniform pressure distribution. The pad box supports a number of compressible, rubber-like pads which are arranged so that they may slide with respect to each other so that their upper surfaces can conform to the contour of the shoe bottom. The arrangement of compressible pads is supported by the bottom of the pad box which has a special construction including a number of links and trays. The links and trays are arranged to provide additional freedoms of motion which enable the compressible pads to shift about with greater freedom and over a wider range of shoe bottom contours than with prior devices. The pad box provides proper distribution of pressures while requiring reduced overall levels of force.Type: GrantFiled: August 12, 1981Date of Patent: March 22, 1983Assignee: Bush Universal, Inc.Inventor: John M. Nardone
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Patent number: 4361921Abstract: A method and apparatus for forming a shoe stiffener directly on a selected surface of a shoe assembly (such as a shoe shank on the bottom of an insole) from a strip of initially flexible, uncured thermosetting material encased in a sleeve. The apparatus supports a shoe assembly, bottom up, to expose the insole bottom to a radiant heater. Means are provided for automatically locating a strip of the shank material on the insole bottom and for raising the shoe assembly, together with the insole strip, into engagement with a means for urging the shank strip against and into conformity with the contour of the insole bottom. A radiant heater then is operated to activate the shank strip. The ball and heel ends of the shank strip are pressed firmly toward the insole by heat absorbing presser pads which cause the ends of the shank strip to be tapered and to promote secure bonding of the ends of the shank strip to the insole bottom.Type: GrantFiled: October 6, 1980Date of Patent: December 7, 1982Assignee: Bush Universal Inc.Inventor: Leo F. Stanton
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Patent number: 4287628Abstract: A method and apparatus for forming a shoe stiffener directly on a selected surface of a shoe assembly (such as a shoe shank on the bottom of an insole) from a strip of initially flexible, uncured thermosetting material encased in a sleeve. The apparatus supports a shoe assembly, bottom up, to expose the insole bottom to a radiant heater. Means are provided for automatically locating a strip of the shank material on the insole bottom and for raising the shoe assembly, together with the insole strip, into engagement with a means for urging the shank strip against and into conformity with the contour of the insole bottom. A radiant heater then is operated to activate the shank strip. The ball and heel ends of the shank strip are pressed firmly toward the insole by heat absorbing presser pads which cause the ends of the shank strip to be tapered and to promote secure bonding of the ends of the shank strip to the insole bottom.Type: GrantFiled: December 12, 1978Date of Patent: September 8, 1981Assignee: Bush Universal, Inc.Inventor: Leo F. Stanton
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Patent number: 4258449Abstract: A strip which will form a rigid shoe stiffener, such as a shoe shank, is applied to the surface of a shoe to be stiffened, such as to the bottom of an insole. The shank strip is flexible and includes a carrier sleeve or envelope containing a plurality of fiberglass strands in thermosetting plastic matrix. After the shank strip is in place on the insole, the matrix is activated by exposing it to an external stimulus such as radiant heat which is applied locally to the shank strip. Curing takes place in situ on the insole bottom. The carrier sleeve is formed in a manner which provides control over the shape of the cured stiffener as well as a means to facilitate handling of the shank strip.Type: GrantFiled: September 25, 1978Date of Patent: March 31, 1981Assignee: Bush Universal, Inc.Inventor: Robert W. Bradley
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Patent number: 4236268Abstract: A strip which will form a rigid shoe shank is applied to the bottom of an insole. The shank strip is flexible and includes a carrier sleeve which contains a plurality of fiberglass strands in a thermosetting plastic matrix. After the shank strip is in place, the matrix is activated by exposing it to an external stimulus such as heat or radiation. Heat can be applied locally to the shank strip and curing takes place directly on the insole bottom. The thermosetting resin can polymerize with or without an exothermic reaction. Preferably, sufficient heat is developed from exothermic heat or from the energy source and directed to melt the carrier sleeve to fuse it with the resin and to effect a bond to the insole for forming a unitary and rigid shank attached firmly to the insole bottom. The shank strip may be cut from a "rope" which may be wound onto a reel for storage and to facilitate continuous paying out of the rope to enable a shank length to be severed and applied to the insole bottom.Type: GrantFiled: October 14, 1977Date of Patent: December 2, 1980Assignee: Bush Universal, Inc.Inventors: Robert W. Bradley, Donald L. Bray, Raymond L. Peterson
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Patent number: 4229851Abstract: An apparatus for forming a shoe shank directly on the bottom of a shoe insole from a strip of initially flexible, uncured thermosetting material includes a radiant heater and resilient means for engaging the shank strip to orient, retain and resiliently urge the shank strip against the insole bottom while the radiant heater activates the shank strip.Type: GrantFiled: May 30, 1978Date of Patent: October 28, 1980Assignee: Bush Universal, Inc.Inventor: Leo F. Stanton
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Patent number: 4162583Abstract: A strip which will form a rigid shoe stiffener, such as a shoe shank, is applied to the surface of a shoe to be stiffened, such as to the bottom of the insole. The shank strip is flexible and includes a carrier sleeve containing a plurality of fiberglass strands in an externally activatable thermosetting plastic matrix. The sleeve is formed from a pair of sheets of material which are bonded to each other along their lateral, longitudinally extending margins to seal the strip as well as to provide a means by which the strip may be handled and maintained in place on the shoe bottom during activation of the strip. The margins are heat sealed in a doubled-over, folded configuration which insures that the margins will not curl over and will remain substantially flat, to facilitate handling of the strip.Type: GrantFiled: October 26, 1977Date of Patent: July 31, 1979Assignee: Bush Universal, Inc.Inventor: John W. Darrin
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Patent number: 4161048Abstract: A method and apparatus for forming a shoe shank directly on the bottom of a shoe insole from a strip of initially flexible, uncured thermosetting material encased in a sleeve. The machine includes a shoe jack for supporting the shoe assembly, bottom up, to expose the insole bottom to a radiant heater. Means are provided for automatically locating and placing a strip of shank material on the insole bottom and for raising the shoe assembly, together with the insole strip into engagement with a means for urging the shank strip against and into conformity with the contour of the insole bottom while the radiant heater is operated to activate the shank strip.Type: GrantFiled: October 3, 1977Date of Patent: July 17, 1979Assignee: Bush Universal, Inc.Inventor: Leo F. Stanton
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Patent number: 4133117Abstract: A strip which will form a rigid shoe stiffener, such as a shoe shank, is applied to the surface of a shoe to be stiffened, such as to the bottom of an insole. The shank strip is flexible and includes a carrier sleeve or envelope containing a plurality of fiberglass strands in a thermosetting plastic matrix. After the shank strip is in place on the insole, the matrix is activated by exposing it to an external stimulus such as radiant heat which is applied locally to the shank strip. Curing takes place in situ on the insole bottom. The carrier sleeve is formed in a manner which provides control over the shape of the cured stiffener as well as a means to facilitate handling of the shank strip.Type: GrantFiled: February 3, 1977Date of Patent: January 9, 1979Assignee: Bush Universal, Inc.Inventor: Robert W. Bradley
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Patent number: 4122573Abstract: An apparatus for forming a shoe shank directly on the bottom of a shoe insole from a strip of initially flexible, uncured thermosetting material includes a radiant heater and resilient means for engaging the shank strip to orient, retain and resiliently urge the shank strip against the insole bottom while the radiant heater activates the shank strip.Type: GrantFiled: February 3, 1977Date of Patent: October 31, 1978Assignee: Bush Universal, Inc.Inventor: Leo F. Stanton
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Patent number: 4081917Abstract: A strip which will form a rigid shoe shank is applied to the bottom of an insole. The shank strip is flexible and includes a carrier sleeve which contains a plurality of fiberglass strands in a thermosetting plastic matrix. After the shank strip is in place, the matrix is activated by exposing it to an external stimulus such as heat or radiation. Heat can be applied locally to the shank strip and curing takes place directly on the insole bottom. The thermosetting resin can polymerize with or without an exothermic reaction. Preferably, sufficient heat is developed from exothermic heat or from the energy source and directed to melt the carrier sleeve to fuse it with the resin and to effect to a bond to the insole for forming a unitary and rigid shank attached firmly to the insole bottom. The shank strip may be cut from a "rope" which may be wound onto a reel for storage and to facilitate continuous paying out of the rope to enable a shank length to be severed and applied to the insole bottom.Type: GrantFiled: April 29, 1976Date of Patent: April 4, 1978Assignee: Bush Universal, Inc.Inventors: Robert W. Bradley, Donald L. Bray, Raymond L. Peterson
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Patent number: 4019215Abstract: A rigid box toe piece for use in the assembly of a lasted safety shoe is lined in a machine which shapes the liner and attaches it to the inner surface of the steel box. The machine includes a clamp to temporarily hold the positioned box liner with respect to a mold which is shaped to correspond to the toe end of a last. The steel box is placed over the clamped liner and a press then urges the steel box over the liner and onto the mold to press and shape the liner between the box and the mold. The liner is secured to the steel box by adhesive which is applied to the inner surface of the box before the box is placed in the machine so that the pressing step also bonds the liner to the box. The machine includes means for aligning the liner with respect to the mold.Type: GrantFiled: April 19, 1976Date of Patent: April 26, 1977Assignee: Bush Universal, Inc.Inventors: Jules N. Allard, Victor J. Gagnon
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Patent number: 3986279Abstract: A safety shoe having a rigid box toe (such as steel) is assembled by a method in which the steel box is incorporated into the shoe upper before the upper is assembled with the last. The steel box is attached to the upper in a position such that when the upper assembly (including the steel box) is fitted onto the last, a light longitudinal draft of the upper will result. With the upper thus placed on the last, it can be lasted in conventional pulling over and lasting equipment. The upper assembly has only one lastable marginal portion at its toe and forepart region so that only one pulling over and lasting operation is required in order to last the upper about the box toe.Type: GrantFiled: October 23, 1975Date of Patent: October 19, 1976Assignee: Bush Universal, Inc.Inventor: Victor J. Gagnon