Patents by Inventor Stephen D. Gilder
Stephen D. Gilder 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: 10610413Abstract: An improved EarTip may result from the distribution of PTFE throughout a slow recovery foam. Such an EarTip may have a finer, more uniform cell structure that aids in insertion within a user's ear canal. It may also have a smoother skin, with a lower kinetic coefficient of friction, and may provide improved sound attenuation.Type: GrantFiled: May 21, 2010Date of Patent: April 7, 2020Assignee: HONEYWELL SAFETY PRODUCTS USA, INC.Inventors: Stephen D. Gilder, David B. Mulvey
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Patent number: 8413331Abstract: An earbud (10) for carrying sound from a source (16) to a person's ear canal, includes a soft foam body (20) and a sleeve (26) of stiffer material lying within the body. The body is molded around the sleeve and is chemically bonded to the sleeve without an adhesive between them. The earbud is molded around the sleeve by placing the sleeve on a mandrel pin (42) within a mold cavity (32) placing foamable material in the mold and closing the mold. The mold has shoulders with one mold shoulder (52) that abuts one end (46) of the sleeve and another mold shoulder (60) that lies within 0.1 millimeter of the other sleeve end (62), to prevent foaming material from leaking into the space (64) between the mandrel pin and the sleeve passage.Type: GrantFiled: December 22, 2011Date of Patent: April 9, 2013Assignee: Sperian Hearing Protection, LLCInventors: Jim Tiemens, Stephen D. Gilder
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Patent number: 8180091Abstract: A headphone that is especially useful to test the efficacy of an earplug installed in an ear canal, by using the headphone to produce sound and by sensing sound pressure at the ear drum despite the presence of the earplug. Applicant uses the speaker (42) in the headphone to produce a smooth and reasonably “flat” frequency response by reversing the speaker orientation. In the reversed orientation, the front side of the speaker diaphragm (50) faces into the headphone cup and away from the ear. The rear side of the speaker that has a circle of holes (52), faces toward the ear. The headphone frame has a cylindrical passage (40) for carrying sound to the person's ear, which has an outer end (78) that is tapered to encompass the holes in the speaker back side (44). The axial distance (L) from the speaker rear side to the ear, is at least 0.6 inch to accommodate the protruding end of an earplug.Type: GrantFiled: July 23, 2007Date of Patent: May 15, 2012Assignee: Sperian Hearing Protection, LLC (Delaware Limited Liability Company)Inventors: W. Gary Sokolich, Stephen D. Gilder, Bradley K. Witt, Claes Ingemar Haglund
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Publication number: 20120114161Abstract: An earbud (10) for carrying sound from a source (16) to a person's ear canal, includes a soft foam body (20) and a sleeve (26) of stiffer material lying within the body. The body is molded around the sleeve and is chemically bonded to the sleeve without an adhesive between them. The earbud is molded around the sleeve by placing the sleeve on a mandrel pin (42) within a mold cavity (32) placing foamable material in the mold and closing the mold. The mold has shoulders with one mold shoulder (52) that abuts one end (46) of the sleeve and another mold shoulder (60) that lies within 0.1 millimeter of the other sleeve end (62), to prevent foaming material from leaking into the space (64) between the mandrel pin and the sleeve passage.Type: ApplicationFiled: December 22, 2011Publication date: May 10, 2012Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Jim Tiemens, Stephen D. Gilder
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Patent number: 8101103Abstract: An earbud (10) for carrying sound from a source (16) to a person's ear canal, includes a soft foam body (20) and a sleeve (26) of stiffer material lying within the body. The body is molded around the sleeve and is chemically bonded to the sleeve without an adhesive between them. The earbud is molded around the sleeve by placing the sleeve on a mandrel pin (42) within a mold cavity (32), placing foamable material in the mold and closing the mold. The mold has shoulders with one mold shoulder (52) that abuts one end (46) of the sleeve and another mold shoulder (60) that lies within 0.1 millimeter of the other sleeve end (62), to prevent foaming material from leaking into the space (64) between the mandrel pin and the sleeve passage.Type: GrantFiled: December 19, 2007Date of Patent: January 24, 2012Assignee: Honeywell International Inc.Inventors: Jim Tiemens, Stephen D. Gilder
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Patent number: 7985468Abstract: An earpiece of flexible foam construction which incorporates recycled pulverized polyurethane foam (RPPF). RPPF constituting 5% to 30% of the improved foam has been found to be useful. The novel and unique nature of RPPF allows for the replacement of a higher cost component with a lower cost component while maintaining or improving physical properties, such as sound attenuation, sound control, comfort and fit.Type: GrantFiled: July 30, 2008Date of Patent: July 26, 2011Assignee: Sperian Hearing Protection, LLCInventors: Stephen D. Gilder, Jim Tiemens, Larry Sanders
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Patent number: 7875343Abstract: A method for making antimicrobial rebonded carpet pad includes mixing zinc pyrithione with a polyol to form an antimicrobial polyol mixture concentrate, blending the antimicrobial polyol mixture concentrate with a binder stream, mixing the binder with foam particles and curing the binder. The percentage of zinc pyrithione mixed with the polyol and the addition ratio of the antimicrobial polyol mixture concentrate with the binder stream are selected to provide an overall concentration of zinc pyrithione in the binder of at least about 7500 ppm. The particles and binder are cured into a block and sliced to form carpet pad.Type: GrantFiled: October 31, 2007Date of Patent: January 25, 2011Assignee: L & P Property Management CompanyInventors: Stephen D. Gilder, Martin J. Lovato, William A. Griggs
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Publication number: 20100300461Abstract: An improved EarTip may result from the distribution of PTFE throughout a slow recovery foam. Such an EarTip may have a finer, more uniform cell structure that aids in insertion within a user's ear canal. It may also have a smoother skin, with a lower kinetic coefficient of friction, and may provide improved sound attenuation.Type: ApplicationFiled: May 21, 2010Publication date: December 2, 2010Applicant: SPERIAN HEARING PROTECTION, LLCInventors: Stephen D. Gilder, David B. Mulvey
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Publication number: 20100285298Abstract: A method for making antimicrobial rebonded carpet pad includes mixing zinc pyrithione with a polyol to form an antimicrobial polyol mixture concentrate, blending the antimicrobial polyol mixture concentrate with a binder stream, mixing the binder with foam particles and curing the binder. The percentage of zinc pyrithione mixed with the polyol and the addition ratio of the antimicrobial polyol mixture concentrate with the binder stream are selected to provide an overall concentration of zinc pyrithione in the binder of at least about 7500 ppm. The particles and binder are cured into a block and sliced to form carpet pad.Type: ApplicationFiled: July 21, 2010Publication date: November 11, 2010Applicant: L&P PROPERTY MANAGEMENT COMPANYInventors: Stephen D. Gilder, Martin J. Lovato, William A. Griggs
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Patent number: 7785437Abstract: A method for making antimicrobial rebonded carpet pad includes mixing zinc pyrithione with a polyol to form an antimicrobial polyol mixture concentrate, blending the antimicrobial polyol mixture concentrate with a binder stream, mixing the binder with foam particles and curing the binder. The percentage of zinc pyrithione mixed with the polyol and the addition ratio of the antimicrobial polyol mixture concentrate with the binder stream are selected to provide an overall concentration of zinc pyrithione in the binder of at least about 7500 ppm. The particles and binder are cured into a block and sliced to form carpet pad.Type: GrantFiled: January 26, 2007Date of Patent: August 31, 2010Assignee: L&P Property Management CompanyInventors: Stephen D. Gilder, Martin J. Lovato, William A. Griggs
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Publication number: 20100174006Abstract: A polyurethane foam produced from a formulation comprising a polyol, an isocyanate, a strut reinforcing agent and a VOC reducing agent. The isocyanate reacts with the polyol to produce the polyurethane foam. By including the strut reinforcing and VOC adsorption agents in the formulation during the reaction between the isocyanate and the polyol, the air permeability and firmness of the polyurethane foam are enhanced while the amount of VOCs within and the level of VOCs emitted by the polyurethane foam are reduced relative to a polyurethane foam produced by reacting the isocyanate and the polyol in the absence of the strut reinforcing or VOC reducing agents.Type: ApplicationFiled: February 1, 2010Publication date: July 8, 2010Applicant: SLEEP INNOVATIONS, INC.Inventors: Stephen D. Gilder, William A. Griggs
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Patent number: 7566406Abstract: A bonded foam product manufactured with a vegetable oil polyol is herein disclosed. The pre-polymer for use as a binder in the manufacture of a bonded foam product comprises an isocyanate and a vegetable oil polyol, wherein the pre-polymer is substantially free of any petrochemical polyol. In another aspect, the invention is method for making a bonded foam product, the method comprising coating a plurality of foam pieces with a pre-polymer, the pre-polymer comprising an isocyanate and a vegetable oil polyol, wherein the pre-polymer is substantially free of any petrochemical polyol, compressing the foam pieces into a foam log of a desired density, and steaming the foam log to cure the pre-polymer. If desired, a process oil may be added to the pre-polymer to modify the viscosity of the pre-polymer.Type: GrantFiled: September 20, 2005Date of Patent: July 28, 2009Assignee: L&P Property Management CompanyInventor: Stephen D. Gilder
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Publication number: 20090038625Abstract: An earplug of the type that includes a shell (12) that fits tightly in a human ear canal and a stem (20) that lies in the shell and can be pushed forward to push the shell into an ear canal, which reduces the possibility of loss of the stem, and provides better blocking of noise. The shell and stem have front ends that are integrally molded and that merge to avoid loss of the stem, although the molding leaves gaps between the shell and stem. The stem has a passage (62), and an insert (60) is inserted into the passage and expands the stem to cause the stem to closely slidably fit in a guide flange (44) of the shell and to press the stem into contact with an inside flange (46) of the shell to form a seal thereat to better block sound. An additional inside front flange (62) is formed in a front portion of the shell, so when the shell front portion is compressed by the walls of the ear canal the front flange engages the stem to provide another sealed chamber that blocks sound.Type: ApplicationFiled: August 9, 2007Publication date: February 12, 2009Inventors: Raul Cortez, Stephen D. Gilder
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Publication number: 20080187161Abstract: An earbud (10) for carrying sound from a source (16) to a person's ear canal, includes a soft foam body (20) and a sleeve (26) of stiffer material lying within the body. The body is molded around the sleeve and is chemically bonded to the sleeve without an adhesive between them. The earbud is molded around the sleeve by placing the sleeve on a mandrel pin (42) within a mold cavity (32), placing foamable material in the mold and closing the mold. The mold has shoulders with one mold shoulder (52) that abuts one end (46) of the sleeve and another mold shoulder (60) that lies within 0.1 millimeter of the other sleeve end (62), to prevent foaming material from leaking into the space (64) between the mandrel pin and the sleeve passage.Type: ApplicationFiled: December 19, 2007Publication date: August 7, 2008Inventors: Jim Tiemens, Stephen D. Gilder
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Patent number: D599907Type: GrantFiled: November 8, 2007Date of Patent: September 8, 2009Assignee: Sperian Hearing Protection, LLCInventors: David B. Mulvey, Stephen D. Gilder
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Patent number: D601241Type: GrantFiled: August 13, 2008Date of Patent: September 29, 2009Assignee: Sperian Hearing Protection, LLCInventors: Jarle Svean, Stephen D. Gilder