Patents by Inventor Jimmy L. Stewart
Jimmy L. Stewart 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: 8991079Abstract: Machines are often used to collect and transport materials in a work environment. One of the more common methods of collecting and transporting materials is with a fork having tines. Another common instrument attached to a machine for collecting and transporting materials is a bucket. The present disclosure describes a bucket that engages the tines of a fork, and therefore can be used with a machine that already has a fork attached. The present disclosure also engages with tines of multiple lengths, meaning that the same bucket will engage with forks from different machines. The bucket has first and second side members; a collecting member extending between the first and second side members; and an engagement portion having an engagement surface and a pocket.Type: GrantFiled: December 20, 2012Date of Patent: March 31, 2015Assignee: Caterpillar Inc.Inventors: Jimmy L. Stewart, Wayne M. Castegnaro, Jr., Ryan P. Shea
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Patent number: 8944218Abstract: A pallet fork includes a frame having a top support tube and a bottom support tube between opposing end plates. A fork bar and a carriage plate are supported by the frame. A fork tine is mounted to the fork bar via a slotted tube. The fork tine includes a vertical leg and a horizontal leg. The slotted tube is at an upper portion of the vertical leg. A locking plate is provided on the top support tube. An upper locking member selectively inserted through a slot in the slotted tube and through one of a plurality of notches to engage the vertical leg of the fork tine with the locking plate and restrict lateral motion of the fork tine. The upper locking member has a head portion with an open point that rests on a top surface of the top support tube.Type: GrantFiled: October 17, 2011Date of Patent: February 3, 2015Assignee: Caterpillar Inc.Inventors: Daniel E. Peschel, Andrew L. Vering, Jimmy L. Stewart, Ryan P. Shea
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Patent number: 8939701Abstract: Machines are often used to collect and transport materials in a work environment. One of the more common methods of collecting and transporting materials is with a fork. The tines of a conventional fork may damage the materials being collected by the machine. Tines are also difficult to attach other work implements to. The disclosed apparatus facilitates collecting material with less resultant damage to the material. The disclosed apparatus also simplifies the connection of other work implements to the machine, in particular, a bucket, by not requiring that the fork first be removed from the machine to attach the bucket. The tine has a base member with a distal end; a roller rotatably coupled to the base member proximate to the distal end; and a part of the roller is elevated above the base member.Type: GrantFiled: December 20, 2012Date of Patent: January 27, 2015Assignee: Caterpillar Inc.Inventor: Jimmy L. Stewart
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Publication number: 20140173947Abstract: Machines are often used to collect and transport materials in a work environment. One of the more common methods of collecting and transporting materials is with a fork having tines. Another common instrument attached to a machine for collecting and transporting materials is a bucket. The present disclosure describes a bucket that engages the tines of a fork, and therefore can be used with a machine that already has a fork attached. The present disclosure also engages with tines of multiple lengths, meaning that the same bucket will engage with forks from different machines. The bucket has first and second side members; a collecting member extending between the first and second side members; and an engagement portion having an engagement surface and a pocket.Type: ApplicationFiled: December 20, 2012Publication date: June 26, 2014Applicant: Caterpillar Inc.Inventors: Jimmy L. Stewart, Wayne M. Castegnaro, JR., Ryan P. Shea
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Publication number: 20140178165Abstract: Machines are often used to collect and transport materials in a work environment. One of the more common methods of collecting and transporting materials is with a fork. The tines of a conventional fork may damage the materials being collected by the machine. Tines are also difficult to attach other work implements to. The disclosed apparatus facilitates collecting material with less resultant damage to the material. The disclosed apparatus also simplifies the connection of other work implements to the machine, in particular, a bucket, by not requiring that the fork first be removed from the machine to attach the bucket.Type: ApplicationFiled: December 20, 2012Publication date: June 26, 2014Applicant: Caterpillar Inc.Inventor: Jimmy L. Stewart
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Publication number: 20130092478Abstract: A pallet fork includes a frame having a top support tube and a bottom support tube between opposing end plates. A fork bar and a carriage plate are supported by the frame. A fork tine is mounted to the fork bar via a slotted tube. The fork tine includes a vertical leg and a horizontal leg. The slotted tube is at an upper portion of the vertical leg. A locking plate is provided on the top support tube. An upper locking member selectively inserted through a slot in the slotted tube and through one of a plurality of notches to engage the vertical leg of the fork tine with the locking plate and restrict lateral motion of the fork tine. The upper locking member has a head portion with an open point that rests on a top surface of the top support tube.Type: ApplicationFiled: October 17, 2011Publication date: April 18, 2013Applicant: Caterpillar Inc.Inventors: Daniel E. Peschel, Andrew L. Vering, Jimmy L. Stewart, Ryan P. Shea
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Patent number: 4684887Abstract: An apparatus, for use in conjunction with a high voltage tester, for confirming that the high voltage test has been successfully completed. The apparatus detects currents caused by the application of a high test voltage to an article under test. If the detected current is not present throughout a predetermined test time interval, the apparatus provides a retest indication and alarm, signifying that a malfunction in the test has occurred. If the current is detected throughout the predetermined time period, a test complete indicator is activated, signifying the successful completion of the high voltage test.Type: GrantFiled: June 24, 1986Date of Patent: August 4, 1987Assignee: General Battery CorporationInventor: Jimmy L. Stewart
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Patent number: 4356239Abstract: An apparatus and method for the sequential testing of series connected lead-acid storage batteries for short circuits between plates of opposite polarity within a cell and for electrical continuity between cells of said battery is disclosed. The apparatus comprises power and control circuitry working in conjunction with a terminal block containing a plurality of pins which are connected to the intercell lugs on the positive and negative straps which when welded together form the intercell connections within the battery. Within this block, the pins are partially wired together so that if there is complete continuity of the intercell welds a continuous electrical circuit is formed. Midway in the electrical wiring is a blocking diode which acts to permit the passage of a DC test current in only one direction. If a positive polarity voltage is impressed on the cathode side of the diode, current will only flow if there is a short circuit between plates of opposite polarity within the cell.Type: GrantFiled: January 19, 1981Date of Patent: October 26, 1982Assignee: General Battery CorporationInventor: Jimmy L. Stewart
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Patent number: 4282292Abstract: An apparatus and method for the sequential testing of series connected lead-acid storage batteries for short circuits between plates of opposite polarity within a cell and for electrical continuity between cells of said battery is disclosed. The apparatus comprises power and control circuitry working in conjunction with a terminal block containing a plurality of pins which are connected to the intercell lugs on the positive and negative straps which when welded together form the intercell connections within the battery. Within this block, the pins are partially wired together so that if there is complete continuity of the intercell welds a continuous electrical circuit is formed. Midway in the electrical wiring is a blocking diode which acts to permit the passage of a DC test current in only one direction. If a positive polarity voltage is impressed on the cathode side of the diode, current will only flow if there is a short circuit between plates of opposite polarity within the cell.Type: GrantFiled: December 31, 1979Date of Patent: August 4, 1981Assignee: General Battery CorporationInventor: Jimmy L. Stewart