Patents by Inventor Lonnie E. Johnston
Lonnie E. Johnston has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9976676Abstract: A tamper evident assembly is provided for an associated fluid fitting that has a threaded nut that cooperates with a threaded body. The tamper evident assembly includes a collar having a through opening dimensioned for receipt over at least one of the nut and body. A holding mechanism is operatively associated with the collar for movement between (i) a first position that extends radially inward a dimension no less than the through opening, and (ii) a second position extending radially inward that prevents axial removal of the collar over both of the nut and body of the associated fluid fitting.Type: GrantFiled: December 30, 2014Date of Patent: May 22, 2018Inventor: Lonnie E. Johnston
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Publication number: 20180104737Abstract: A manual pre-swage tool is particularly useful for pre-setting the tube fitting ferrules onto the tube prior to the actual installation of the fitting components into the tube fitting body. The pre-swage tool is used by clamping in a vise, or other suitable means, in an open area where leverage and ease of use can be obtained. This new and improved design tool of the present disclosure incorporates a feature that prevents the ferrules from being over tightened thereby preventing damage to the tool or ferrules and also allowing the pre-swaged assembly to be fully compatible with what is called “stop collars” and “gap inspection gages” that are commonly used in the field to indicate proper pull up of the tube fitting when installed.Type: ApplicationFiled: October 19, 2017Publication date: April 19, 2018Inventor: Lonnie E. Johnston
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Publication number: 20160377205Abstract: A tamper evident assembly is provided for an associated fluid fitting that has a threaded nut that cooperates with a threaded body. The tamper evident assembly includes a collar having a through opening dimensioned for receipt over at least one of the nut and body. A holding mechanism is operatively associated with the collar for movement between (i) a first position that extends radially inward a dimension no less than the through opening, and (ii) a second position extending radially inward that prevents axial removal of the collar over both of the nut and body of the associated fluid fitting.Type: ApplicationFiled: December 30, 2014Publication date: December 29, 2016Inventor: LONNIE E. JOHNSTON
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Patent number: 7430811Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling nut that is visually perceptible that indicates the pull-up position of the tube fitting assembly.Type: GrantFiled: February 21, 2007Date of Patent: October 7, 2008Assignee: Swagelok CompanyInventors: Peter C Williams, Lonnie E. Johnston, John D. Karkosiak, Gerald A. Babuder, Sanjeev S. Moghe
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Patent number: 7194817Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling nut that is visually perceptible that indicates the pull-up position of the tube fitting assembly.Type: GrantFiled: September 13, 2004Date of Patent: March 27, 2007Assignee: Swagelok CompanyInventors: Peter C. Williams, Lonnie E. Johnston, John D. Karkosiak, Gerald A. Babuder, Sanjeev S. Moghe
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Patent number: 6941668Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking that has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. The marking may be realized as a precision groove or recess machined into a surface. The groove can be made more easily visually perceptible such as by roughening, knurling or coloring the surface. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up. The marking may also be formed with a precise dimension such as an axial length to provide a second edge that corresponds to a predetermined axial displacement of the nut relative to the body beyond initial pull-up for fitting assemblies that are remade.Type: GrantFiled: July 26, 2004Date of Patent: September 13, 2005Assignee: Swagelok CompanyInventors: Peter C. Williams, Lonnie E. Johnston
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Patent number: 6834524Abstract: Apparatus for swaging a ferrule or ferrules onto an outer wall of a cylindrical member includes a hydraulic power section and an adapter tool. The hydraulic section is disposed within a housing, and the adapter tool is at least partly retained in the housing and also is fully removable from the housing without affecting the hydraulic power section of the apparatus. The hydraulic section includes a piston that is moved under force of hydraulic pressure applied thereto from a hydraulic pressure source. The adapter tool includes a driven swaging die that is moved from a retracted position to an extended position in response to movement of the piston. The sleeve and anvil are releasably secured together so that the adapter tool can be removed from the housing as a unitary assembly. Size changes can be accommodated by removing a first adapter tool of a given size and replacing it with a second adapter tool of a different size.Type: GrantFiled: September 13, 2002Date of Patent: December 28, 2004Assignee: Swagelok CompanyInventor: Lonnie E. Johnston
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Publication number: 20040251681Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking that has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. The marking may be realized as a precision groove or recess machined into a surface. The groove can be made more easily visually perceptible such as by roughening, knurling or coloring the surface. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up. The marking may also be formed with a precise dimension such as an axial length to provide a second edge that corresponds to a predetermined axial displacement of the nut relative to the body beyond initial pull-up for fitting assemblies that are remade.Type: ApplicationFiled: July 26, 2004Publication date: December 16, 2004Applicant: SWAGELOK COMPANYInventors: Peter C. Williams, Lonnie E. Johnston
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Patent number: 6766582Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling body that is visually perceptible when the coupling is in a finger tight position, and that is covered or visually imperceptible or otherwise has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. In a preferred form, the marking is realized as a precision groove or recess machined into a surface of the coupling body. The groove can be made more easily visually perceptible such as by roughening or knurling the surface, or coloring the surface, for example. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up.Type: GrantFiled: January 6, 2003Date of Patent: July 27, 2004Assignee: Swagelok CompanyInventors: Peter C. Williams, Lonnie E. Johnston
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Patent number: 6640457Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling body that is visually perceptible when the coupling is in a finger tight position, and that is covered or visually imperceptible or otherwise has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. In a preferred form, the marking is realized as a precision groove or recess machined into a surface of the coupling body. The groove can be made more easily visually perceptible such as by roughening or knurling the surface, or coloring the surface, for example. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up.Type: GrantFiled: March 12, 2002Date of Patent: November 4, 2003Assignee: Swagelok CompanyInventors: Peter C. Williams, Lonnie E. Johnston, John D. Karkosiak, Gerald A. Babuder, Sanjeey S. Moghe
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Publication number: 20030131488Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling body that is visually perceptible when the coupling is in a finger tight position, and that is covered or visually imperceptible or otherwise has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. In a preferred form, the marking is realized as a precision groove or recess machined into a surface of the coupling body. The groove can be made more easily visually perceptible such as by roughening or knurling the surface, or coloring the surface, for example. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up.Type: ApplicationFiled: January 6, 2003Publication date: July 17, 2003Inventors: Peter C. Williams, Lonnie E. Johnston
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Publication number: 20030010085Abstract: Apparatus for swaging a ferrule or ferrules onto an outer wall of a cylindrical member includes a hydraulic power section and an adapter tool. The hydraulic section is disposed within a housing, and the adapter tool is at least partly retained in the housing and also is fully removable from the housing without affecting the hydraulic power section of the apparatus. The hydraulic section includes a piston that is moved under force of hydraulic pressure applied thereto from a hydraulic pressure source. The adapter tool includes a driven swaging die that is moved from a retracted position to an extended position in response to movement of the piston. The sleeve and anvil are releasably secured together so that the adapter tool can be removed from the housing as a unitary assembly. Size changes can be accommodated by removing a first adapter tool of a given size and replacing it with a second adapter tool of a different size.Type: ApplicationFiled: September 13, 2002Publication date: January 16, 2003Inventor: Lonnie E. Johnston
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Patent number: 6502323Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling body that is visually perceptible when the coupling is in a finger tight position, and that is covered or visually imperceptible or otherwise has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. In a preferred form, the marking is realized as a precision groove or recess machined into a surface of the coupling body. The groove can be made more easily visually perceptible such as by roughening or knurling the surface, or coloring the surface, for example. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up.Type: GrantFiled: August 7, 2001Date of Patent: January 7, 2003Assignee: Swagelok CompanyInventors: Peter C. Williams, Lonnie E. Johnston
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Publication number: 20020148128Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling body that is visually perceptible when the coupling is in a finger tight position, and that is covered or visually imperceptible or otherwise has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. In a preferred form, the marking is realized as a precision groove or recess machined into a surface of the coupling body. The groove can be made more easily visually perceptible such as by roughening or knurling the surface, or coloring the surface, for example. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up.Type: ApplicationFiled: March 12, 2002Publication date: October 17, 2002Inventors: Peter C. Williams, Lonnie E. Johnston, John D. Karkosiak, Gerald A. Babuder, Sanjeev S. Moghe
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Patent number: 6463778Abstract: Apparatus for swaging a ferrule or ferrules onto an outer wall of a cylindrical member includes a hydraulic power section and an adapter tool. The hydraulic section is disposed within a housing, and the adapter tool is at least partly retained in the housing and also is fully removable from the housing without affecting the hydraulic power section of the apparatus. The hydraulic section includes a piston that is moved under force of hydraulic pressure applied thereto from a hydraulic pressure source. The adapter tool includes a driven swaging die that is moved from a retracted position to an extended position in response to movement of the piston. The sleeve and anvil are releasably secured together so that the adapter tool can be removed from the housing as a unitary assembly. Size changes can be accommodated by removing a first adapter tool of a given size and replacing it with a second adapter tool of a different size.Type: GrantFiled: September 22, 2000Date of Patent: October 15, 2002Assignee: Swagelok CompanyInventor: Lonnie E. Johnston
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Patent number: 6345845Abstract: A phase controlled sequential gripping tube fitting for gripping a tube therein, the fitting comprising a rear ferrule shaped to receive the tube therein, the rear ferrule having a nose portion and a central body. The tube fitting further comprises a front ferrule having an axially-extending rear portion radially outwardly spaced from the rear ferrule, whereby when the rear ferrule is urged axially in a first direction the rear ferrule grips the tube, and whereby the rear portion of the front ferrule reduces buckling of the rear ferrule.Type: GrantFiled: August 21, 1998Date of Patent: February 12, 2002Assignee: Swagelok CompanyInventor: Lonnie E. Johnston
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Publication number: 20010047593Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling body that is visually perceptible when the coupling is in a finger tight position, and that is covered or visually imperceptible or otherwise has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. In a preferred form, the marking is realized as a precision groove or recess machined into a surface of the coupling body. The groove can be made more easily visually perceptible such as by roughening or knurling the surface, or coloring the surface, for example. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up.Type: ApplicationFiled: August 7, 2001Publication date: December 6, 2001Inventors: Peter C. Williams, Lonnie E. Johnston
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Patent number: 6279242Abstract: An intrinsic gauging device for a ferrule type tube fitting of the type having a coupling nut, a coupling body and at least one ferrule, includes a precisely formed marking on the coupling body that is visually perceptible when the coupling is in a finger tight position, and that is covered or visually imperceptible or otherwise has a predetermined relationship with the coupling nut when the fitting has been initially pulled-up. In a preferred form, the marking is realized as a precision groove or recess machined into a surface of the coupling body. The groove can be made more easily visually perceptible such as by roughening or knurling the surface, or coloring the surface, for example. The groove defines an edge at a precise position that corresponds to a predetermined axial displacement of the nut relative to the body for initial pull-up.Type: GrantFiled: September 13, 1999Date of Patent: August 28, 2001Assignee: Swagelok CompanyInventors: Peter C. Williams, Lonnie E. Johnston
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Publication number: 20010015556Abstract: A phase controlled sequential gripping tube fitting for gripping a tube therein, the fitting comprising a rear ferrule shaped to receive the tube therein, the rear ferrule having a nose portion and a central body. The tube fitting further comprises a front ferrule having an axially-extending rear portion radially outwardly spaced from the rear ferrule, whereby when the rear ferrule is urged axially in a first direction the rear ferrule grips the tube, and whereby the rear portion of the front ferrule reduces buckling of the rear ferrule.Type: ApplicationFiled: August 21, 1998Publication date: August 23, 2001Inventor: LONNIE E. JOHNSTON
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Patent number: 5074599Abstract: A tube fitting for joining resinous plastic tubing comprises a fitting body having an opening with a conically shaped camming mouth. A tube extends into the opening. A first ferrule is slidably received on the tube and has an exterior surface which faces the camming mouth. A second ferrule is also slidably received on the tube at a location outwardly of the opening and the first ferrule. The second ferrule has a nose portion which engages the first ferrule adjacent the tube and is snap fitted within a recess formed circumferentially of the tube prior to association of the tube with the fitting. The nose portion of the second ferrule is engaged in the recess in axial driving engagement with the tube prior to make-up of said fitting. A nut member is threadedly engaged with the body for driving the first and second ferrules into the camming mouth during fitting make-up.Type: GrantFiled: October 30, 1990Date of Patent: December 24, 1991Assignee: Crawford Fitting Co.Inventors: Stephen R. Wirbel, Joseph M. Stenger, Lonnie E. Johnston, Appasaheb T. Patil, Richard F. Wozniak, Peter C. Williams