Patents Assigned to Ma'at
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Patent number: 6229421Abstract: An autosecuring solenoid utilizes an interposing device that restrains the solenoid plunger when the solenoid is de-energized and/or energized, effectively preventing undesired movement of the plunger. When a voltage is applied across the coil, the flowing current creates an magnetic field. This field causes the plunger to slide within the solenoid cavity, unless restrained. This field also causes displacement of a movable magnet in the interposing device. The direction of motion of the movable magnet will depend on the magnetic field orientation of the movable magnet with respect to the magnetic field. Thus, the interposing device may move either toward or away from the plunger. Additionally, if using two interposing devices, one device could move away from the plunger and the second device could move toward the plunger. The second interposing device could even permit the plunger to move until the second interposing device engaged a recess or notch in the plunger.Type: GrantFiled: November 18, 1999Date of Patent: May 8, 2001Assignee: Mas-Hamilton Group, Inc.Inventors: Tracy Floyd, John Passafiume, Joseph Luciano, Tommy Lowe
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Patent number: 6205914Abstract: A tortilla forming machine for molding dough into a tortilla shell having a top, a bottom, a peripheral edge, and a thickness. The forming machine includes a first member having a first forming surface, a second member having a second forming surface moveable toward and away from the first forming surface, and at least one removable sizing ring. The sizing ring includes a first edge and an opposing second edge, an inner surface and a height defining a cavity between the first and second forming surfaces when the first forming surface is adjacent the first edge and the second forming surface is adjacent the second edge such that the inner surface of the ring forms the peripheral edge of the tortilla shell and the height of the ring forms the thickness of the tortilla shell.Type: GrantFiled: August 11, 2000Date of Patent: March 27, 2001Assignee: Poquito Mas, Inc.Inventor: Kevin T. McCarney
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Patent number: 6178791Abstract: The technique for electronically resetting a magnetically sealed solenoid to an unattracted, unactuated position is described for use with solenoids which have either a residual magnetic or a permanent magnet holding force necessary to retain the armature of the solenoid in its actuated position until such time as the armature is either physically displaced by a mechanical force or an electronic signal is applied to the solenoid. This displacement creates a reverse polarity magnetic field, effectively overcoming the magnetic field acting to hold the armature in its actuated position, permitting a small mechanical force to reset the armature. In order to prevent a lock or similar device from being conditioned for opening and possibly left in that condition for a significant period of time while unattended, jeopardizing the security of the container and its contents, the actuation of the armature in the reset or release phase may occur a relatively short time following its actuation.Type: GrantFiled: December 28, 1999Date of Patent: January 30, 2001Assignee: Mas-Hamilton Group, Inc.Inventors: James D. Hill, William Fain Irving, James Thomas Loiselle, Joseph W. Luciano, Kenneth H. Mimlitch, John E. Passafiume
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Patent number: 6166996Abstract: An ultrasonic broadband frequency transducer pest repulsion system comprises: a variable frequency generator; at least one ultrasonic frequency amplifier coupled to the variable frequency generator; and a transducer unit coupled to the ultrasonic frequency amplifier. The transducer unit comprises: a first transducer tuned at a first frequency located between a lower frequency and an upper frequency; a second transducer tuned at a second frequency located between the first frequency and the upper frequency, and a third transducer tuned at a third frequency located between the second frequency and the upper frequency.Type: GrantFiled: February 26, 1999Date of Patent: December 26, 2000Assignee: The No Mas Group, Inc.Inventors: Donald E. Grissom, Earl E. Chipley
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Patent number: 6112691Abstract: A damper device for mooring watercraft, of the type comprising at least two rigid elements (1, 2), to one end of each of which there can be secured a mooring rope or chain, said elements being able to move coaxially in opposition to each other against the action of an elastic body (3) which comprises at least one member (10) constructed of an elastically deformable material.Type: GrantFiled: August 10, 1998Date of Patent: September 5, 2000Assignee: GIA. FRA. MA. S.p.A.Inventors: Mario Bajeli, Carlo Pedruzzi
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Patent number: 6094953Abstract: A slidebolt lock, with slidebolt displacement forces provided by a mechanism outside the lock assembly and acting on the slidebolt, is locked by a blocking member carried by the slidebolt and normally spring biased toward a blocking and locking position. The blocking member engages the lock case and denies the bolt freedom to move in an unlocking direction. The blocking member is forced to a disengaged position by an electromechanical drive, such as a stepper motor driving a cam wheel and cam follower, or a solenoid directly or indirectly acting to force the blocking member to a position within the bolt and disengaging the blocking member from engagement with the lock casing. To simplify the solenoid in one embodiment, upon slidebolt movement toward a withdrawn, unlocked position, the blocking member forms and provides a camming structure to break any residual magnetic seal of the solenoid armature to the solenoid body.Type: GrantFiled: November 10, 1998Date of Patent: August 1, 2000Assignee: Mas-Hamilton Group, Inc.Inventor: Walter Evans
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Patent number: 6076383Abstract: A self powered lock is powered by a manually driven generator. The data input to the lock is entered by rotating the dial and stopping and waiting a predetermined amount of time when a desired number is displayed on the lock display. The drive of the power generator, a stepper motor, is through a unidirectional clutch such that the generator is only driven when the dial is rotated in a selected direction and remains stationary when the dial is rotated in the opposite direction. The data input, including entry of the combination, to the lock is provided by a stepper motor which generates a train of electrical pulses. The electrical pulses are used by the electronic controls of the lock to control the electronic controls including entering the combination. The data input pulses are generated by a stepper motor driven to act as a generator.Type: GrantFiled: December 5, 1997Date of Patent: June 20, 2000Assignee: Mas-Hamilton Group, Inc.Inventors: Thomas R. Clark, Gerald L. Dawson, James P. Redden
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Patent number: 6047998Abstract: A locking device is disclosed which substantially restricts access to the cassettes or drawers within a vault or safe, including an ATM or ABM, and also restricts access to the cassette rack of the ATM/ABM, both resident within the vault or safe of an ATM/ABM. The blocking member restricts access to the cassettes or drawers and the cassette rack is mounted on a pair of supporting pins on a mounting bracket attached to the interior of a vault or safe, including an ATM/ABM. The blocking member may be removed from the supporting pins only after unlocking and withdrawal of a lock bolt from a strike hole in the mounting bracket. The blocking member must be lifted off the support pins and laid aside and later re-installed. By extending the bolt into the strike hole of the mounting bracket, the only available degree of freedom is eliminated preventing removal of the blocking member from the mounting bracket.Type: GrantFiled: February 3, 1998Date of Patent: April 11, 2000Assignee: Mas-Hamilton Group, Inc.Inventors: Edward E. Pollard, David B. Frodge
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Patent number: 6038897Abstract: A mechanism for locking the back cover of a combination lock to the lock housing is described having two sequentially and phased moveable parts, each having an aperture through which a locking member may be inserted, the apertures are disposed in parts moveable in parallel and adjacent planes and a portion of each aperture is at all times aligned with the other aperture such that a third member may extend through the apertures. The apertures have enlarged portions which will pass the third member and channel portions which prevent withdrawal of the third member while permitting movement of the moveable parts. The third member is carried by the back cover of the lock and can only be withdrawn by sequentially withdrawing from a first moveable part, shifting the moveable parts to a second position and withdrawing from the second moveable part.Type: GrantFiled: September 18, 1998Date of Patent: March 21, 2000Assignee: Mas-Hamilton Group, Inc.Inventors: Gerald L. Dawson, James P. Redden
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Patent number: 6006561Abstract: The technique for electronically resetting a magnetically sealed solenoid to an unattracted, unactuated position is described for use with solenoids which have either a residual magnetic or a permanent magnet holding force necessary to retain the armature of the solenoid in its actuated position until such time as the armature is either physically displaced by a mechanical force or an electronic signal is applied to the solenoid. This displacement creates a reverse polarity magnetic field, effectively overcoming the magnetic field acting to hold the armature in its actuated position, permitting a small mechanical force to reset the armature. In order to prevent a lock or similar device from being conditioned for opening and possibly left in that condition for a significant period of time while unattended, jeopardizing the security of the container and its contents, the actuation of the armature in the reset or release phase may occur a relatively short time following its actuation.Type: GrantFiled: May 7, 1997Date of Patent: December 28, 1999Assignee: Mas-Hamilton Group, Inc.Inventors: James D. Hill, William Fain Irving, James Thomas Loiselle, Joseph W. Luciano, Kenneth H. Mimlitch, John E. Passafiume
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Patent number: 5996880Abstract: A memory module has DRAM chips mounted on both a front and a back surface but decoupling capacitors mounted on only the front surface. Each decoupling capacitor is for suppressing current spikes from a pair of DRAM chips. The pair of DRAM chips includes a first DRAM chip on the same surface as the capacitor and a second DRAM chip opposite the first DRAM chip on the back surface of the module. The first DRAM chip belongs to a first bank while the second DRAM chip belongs to a second bank. Two RAS signals are for controlling access to the two banks. Since only one bank is accessed at any time, and access causes current spikes, only one bank and only one DRAM chip in the pair of DRAM chips creates a current spike at any time. Thus a capacitor can be shared between the two DRAM chips in the pair. The shared capacitor can be mounted next to or under one of the DRAM chips, or formed within the multi-layer substrate itself.Type: GrantFiled: April 6, 1998Date of Patent: December 7, 1999Assignee: Ma Laboratories, Inc.Inventors: Tzu-Yih Chu, Abraham C. Ma
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Patent number: 5994879Abstract: A charging circuit includes a programable CPU for supplying a constant voltage and a constant current respectively to a voltage control circuit and a current control circuit so as to obtain function of automatically adjust the charging voltage and fix the current. A voltage checking circuit is provided to coordinate with the CPU for keeping watch of charging operation and checking if a battery being charged is normal or not. If the stored electric volume is less than a quarter (indicating the battery is damaged), if the positive and the negative of the charging circuit are connected reversely with those of the battery, if pinchers of the charging circuit contact each other in a short-circuited condition, or if the pinchers fall off the poles of the battery, the CPU stops at once charging operation so as to protect the charging circuit and batteries.Type: GrantFiled: March 1, 1999Date of Patent: November 30, 1999Assignee: Ma Lien Electrical Engineering Co., Ltd.Inventor: Wen-Ming Hsieh
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Patent number: 5982653Abstract: A substrate with a number of memory chips in a standard arrangement. However, the traces for either or both of data and address lines are intermixed, such that, for example, D0 can be re-routed so that it need not connect to D0 on a particular memory chip. For an add-on card or module with the processor and SRAM on the same card, the connections between the processor pins and the SRAM pins can be intermixed. For a memory add-on card or module, the lines between the module connector and the memory chip pins can be intermixed. Since all of the bits get addressed in any event in each chip, it is transparent to the user that such a re-routing has occurred. Such a re-routing will simplify the trace layout significantly, eliminating required cross-overs.Type: GrantFiled: August 6, 1997Date of Patent: November 9, 1999Assignee: Ma Labs, IncorporatedInventor: Tzu-Yih Chu
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Patent number: 5941447Abstract: A processor module has a cache of SRAM chips mounted on both a back and a front surface but de-coupling capacitors mounted on only the back surface. Each de-coupling capacitor is for suppressing current spikes from a pair of SRAM chips. The pair of SRAM chips includes a first SRAM chip on the same surface as the capacitor and a second SRAM chip opposite the first SRAM chip on the front surface of the module. The first SRAM chip belongs to a first bank while the second SRAM chip belongs to a second bank. Two chip-enable signals control access to the two banks. Since only one bank is accessed at any time, and access causes current spikes, only one bank and only one SRAM chip in the pair of SRAM chips creates a current spike at any time. Thus, a capacitor can be shared between the two SRAM chips in the pair. The shared capacitor can be mounted next to or under one of the SRAM chips, or formed within the multi-layer substrate itself.Type: GrantFiled: September 28, 1998Date of Patent: August 24, 1999Assignee: MA Laboratories, Inc.Inventors: Tzu-Yih Chu, Abraham C. Ma
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Patent number: 5906081Abstract: A wall construction comprising supporting poles, a close-meshed metal net attached thereto and a wall portion consisting of filling material and cast into spaces formed by the supporting poles and the metal net. In the method, supporting poles are mounted in place and a close-meshed metal net is attached thereto. On the outside of the metal net are fastened support boards at spaced intervals. Into spaces formed by the supporting poles and the metal net is cast filling material. The metal net acting as a mould forms part of the wall construction and together with the filling material a reinforcement.Type: GrantFiled: December 2, 1997Date of Patent: May 25, 1999Assignee: Ma-Rakennus J. Mantyla KYInventor: Juhani Mantyla
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Patent number: 5896026Abstract: The charge on a capacitor is supplied by a manual generator in a self-powered lock. The capacitor retains a reduced level charge after completion of the operation of the electronic lock controls that may serve as a capacitor pre-charge. The pre-charge reduces the amount of manual input to the generator required. The drain of the electronic control circuitry on the capacitor is disconnected responsive to a microprocessor command at the completion of microprocessor operations. The disconnection may occur at a higher level of charge voltage on the capacitor when the control is from the microprocessor without having to wait for charge decay to reach a disconnect or power down level based on charge voltage level.Type: GrantFiled: March 20, 1998Date of Patent: April 20, 1999Assignee: Mas-Hamilton GroupInventor: Steven Wayne Higgins
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Patent number: 5896095Abstract: An electronic lock is provided with an emergency technique by which the lock may be possibly opened in the event that the electronic memory used to store the authorized combinations for operation in unlocking of the lock becomes corrupted, damaged or is unable to provide a valid read of storage locations containing combinations. Upon the determination that an invalid read has occurred and that the invalid read has been verified for at least a plurality of additional read cycles, the lock is conditioned to accept an otherwise inoperable master combination for purposes of opening the lock. Under the prescribed conditions, the master combination is capable of opening the lock and providing access to the interior of the container carrying the lock, thus permitting either replacement or repair of the lock and also simultaneously eliminating the need for drilling or other destructive access to the interior of the container.Type: GrantFiled: May 7, 1997Date of Patent: April 20, 1999Assignee: Mas-Hamilton GroupInventors: James D. Hill, Herman W. Miracle, Jr.
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Patent number: RE37011Abstract: A combination lock is described where the combination that is used to open the lock is generated on a separate computer system using information that is contained in the lock and a series of steps that combine selected items of the information contained in the lock and alter the results of the results of the combination of the information items. The lock incorporates a computer processor-which performs the identical steps to generate an authorized combination after a combination is entered into the lock. When the two combinations match, the lock is enabled for opening. At least some of the information items used in the generation of the combinations change with each successful opening of the lock, rendering the combination generated by the computer system useable for only a single opening of the lock.Type: GrantFiled: August 5, 1997Date of Patent: January 9, 2001Assignee: Mas-Hamilton Group, Inc.Inventors: Gerald L. Dawson, Daniel L. Thompson
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Patent number: D437542Type: GrantFiled: September 23, 1999Date of Patent: February 13, 2001Assignee: Mas-Hamilton GroupInventors: Kenneth Mimlitch, J. D. Hamilton, Raymond Reichenbach, Brad Hammond
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Patent number: D433314Type: GrantFiled: June 21, 1999Date of Patent: November 7, 2000Assignee: Mas-Hamilton GroupInventors: Kenneth Mimlitch, J. D. Hamilton, Raymond Reichenbach, Brad Hammond