Patents by Inventor Matthew S. McMaster
Matthew S. McMaster 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: 10416058Abstract: The present application relates generally to moving die rheometers, and more particularly to moving die rheometers that employ a variable eccentric cam. In one aspect, the eccentricity produced by the cam may be adjusted using shims of different thickness to alter the position of the post on the cam.Type: GrantFiled: October 8, 2015Date of Patent: September 17, 2019Assignee: ALPHA TECHNOLOGIES SERVICES LLCInventors: Keith Buzek, Matthew S. McMaster, Michael R. Stoller
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Patent number: 10126222Abstract: The present application relates generally rheometers. In one aspect, misalignment of the air cylinder with respect to the cross-head is accommodated using a flexible coupling between the air cylinder and the cross-head so as to prevent binding and stuttering of the machine due to misalignment.Type: GrantFiled: October 8, 2015Date of Patent: November 13, 2018Assignee: ALPHA TECHNOLOGIES SEREVICES LLCInventors: Matthew S. McMaster, Keith Buzek, William J. Roblin, III
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Publication number: 20170241884Abstract: The present application relates generally rheometers. In one aspect, misalignment of the air cylinder with respect to the cross-head is accommodated using a flexible coupling between the air cylinder and the cross-head so as to prevent binding and stuttering of the machine due to misalignment.Type: ApplicationFiled: October 8, 2015Publication date: August 24, 2017Applicant: Alpha Technologies Services LLCInventors: Matthew S. McMaster, Keith Buzek, William Roblin
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Publication number: 20170241885Abstract: The present application relates generally to moving die rheometers, and more particularly to moving die rheometers that employ a variable eccentric cam. In one aspect, the eccentricity produced by the cam may be adjusted using shims of different thickness to alter the position of the post on the cam.Type: ApplicationFiled: October 8, 2015Publication date: August 24, 2017Applicant: Alpha Technologies Services LLCInventors: Keith Buzek, Matthew S. McMaster, Michael R. Stoller
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Patent number: 9091626Abstract: A sealless die assembly with a backing element is disclosed. A first die assembly cooperates with a second die assembly to form a sample-holding chamber. At least one of the die assemblies includes a die and a housing that are separated from one another by a radial gap such that the die is rotatable relative to its housing. A thin film is positioned to bridge the gap between the die and its housing to maintain pressure in the sample-holding chamber. A backing element cooperates with the die housing to interface with the film, and the backing element is spaced from its corresponding die. The backing element helps to transfer torque from the sample to the torque transducer. The die assembly may be incorporated into a rheometer or other sampling measuring apparatus for testing process characteristics of a material.Type: GrantFiled: March 14, 2013Date of Patent: July 28, 2015Assignee: Alpha Technologies Services LLCInventors: Matthew S. McMaster, Henry Pawlowski, Michael R. Stoller
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Publication number: 20140260558Abstract: A sealless die assembly with a backing element is disclosed. A first die assembly cooperates with a second die assembly to form a sample-holding chamber. At least one of the die assemblies includes a die and a housing that are separated from one another by a radial gap such that the die is rotatable relative to its housing. A thin film is positioned to bridge the gap between the die and its housing to maintain pressure in the sample-holding chamber. A backing element cooperates with the die housing to interface with the film, and the backing element is spaced from its corresponding die. The backing element helps to transfer torque from the sample to the torque transducer. The die assembly may be incorporated into a rheometer or other sampling measuring apparatus for testing process characteristics of a material.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: Alpha Technologies Services LLC.Inventors: Matthew S. McMaster, Henry Pawlowski, Michael R. Stoller
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Publication number: 20020124309Abstract: A faucet handle mechanism for attaching a faucet handle to a faucet valve body, which valve body has a rotatable valve stem, includes an adapter coaxial with and attached to the valve stem for concurrent rotation with the stem. There is an insert coaxial with and attached to the adapter for concurrent rotation with the insert and stem. A handle is coaxial with and attached to the insert for concurrent rotation with the insert, adapter and valve stem. A fastener secures the adapter, insert and handle together. There is a generally cylindrical chassis coaxial with and extending about the adapter, with the chassis being non-rotatably attached to the valve body. A shell is non-rotatably mounted on the chassis, with the chassis having an upper bearing surface which rotatably supports a lower bearing surface on the insert. The chassis and adapter have cooperating elements which prevent relative axial movement therebetween.Type: ApplicationFiled: March 9, 2001Publication date: September 12, 2002Inventors: Edward R. Donath, Matthew S. McMaster, Owen K. Patton
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Publication number: 20020125453Abstract: A handle drive mechanism for use of in operating a water control valve having an outwardly extending valve stem, includes a stem adapter having a bore which is sized and configured to received the stem and to rotate it concurrently with the stem adapter. There is a stop tube extending about the stem and stem adapter with cooperating stop elements on these two members to limit rotation of the stem adapter and valve stem. A handle base extends about and is engaged with the stem adapter and a screw extends through the handle base and stem adapter to attach these elements to the valve stem. A handle cap is attached to the handle base and masks the screw with the handle cap having a plurality of generally centrally positioned inwardly directed flexible hooks which engage with and interlock to the handle base.Type: ApplicationFiled: March 9, 2001Publication date: September 12, 2002Inventors: Edward R. Donath, Matthew S. McMaster, Davor G. Mandic
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Patent number: 6438771Abstract: A faucet handle mechanism for attaching a faucet handle to a faucet valve body, which valve body has a rotatable valve stem, includes an adapter coaxial with and attached to the valve stem for concurrent rotation with the stem. There is an insert coaxial with and attached to the adapter for concurrent rotation with the insert and stem. A handle is coaxial with and attached to the insert for concurrent rotation with the insert, adapter and valve stem. A fastener secures the adapter, insert and handle together. There is a generally cylindrical chassis coaxial with and extending about the adapter, with the chassis being non-rotatably attached to the valve body. A shell is non-rotatably mounted on the chassis, with the chassis having an upper bearing surface which rotatably supports a lower bearing surface on the insert. The chassis and adapter have cooperating elements which prevent relative axial movement therebetween.Type: GrantFiled: March 9, 2001Date of Patent: August 27, 2002Assignee: Moen IncorporatedInventors: Edward R. Donath, Jr., Matthew S. McMaster, Owen K. Patton
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Patent number: 6048027Abstract: A folding passenger seat assembly with integral child restraint for a motor vehicle includes a seat portion and a backrest portion hinged to the seat portion. A seat latch finger selectively locks the backrest portion in a vertical use position. A child seat is integrally recessed within the backrest portion and includes a hinged bottom cushion. The backrest portion and child seat are interlocked so that the bottom cushion of the child seat can only be deployed if the backrest portion is latched in its vertical use position. Conversely, the backrest portion cannot be folded down if the child seat is deployed. The child seat includes a throw bolt at its hinge point for constantly and unyieldingly locking the bottom cushion in its stowed condition until deliberately released therefrom. Such deliberate release is accomplished by a footrest actuator on the bottom cushion.Type: GrantFiled: April 16, 1996Date of Patent: April 11, 2000Assignee: Lear CorporationInventors: Steven Peck, Matthew S. McMaster