Patents by Inventor Mark A. Colman

Mark A. Colman 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).

  • Patent number: 6635291
    Abstract: The invention is a packaging system for refrigerated leavened dough or batter compositions and includes a method for determining package seal strength for a refrigerated leavened composition. The system provides an environment within the package such that the composition attains a desired specific volume upon baking or cooking. The method includes the process of determining the specific volume required for the refrigerated leavened composition after baking, determining internal equilibrium pressure required to attain the specific volume after baking, determining the package dimension subject to the internal equilibrium pressure, and defining the pressure holding capacity required to maintain this pressure during the storage life of the refrigerated composition.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: October 21, 2003
    Assignee: The Pillsbury Company
    Inventors: Michael R. Perry, Mark A. Colman
  • Patent number: 6575010
    Abstract: The present invention provides a method and system for detecting and cross-checking faulty sensors in liquid level indicators and controllers. A liquid level indicator and controller in which one embodiment of the present invention operates includes a control unit for controlling the other components of the liquid level indicator and controller, sensors electrically connected to the control unit for sensing the level of a liquid in a vessel, and an indicating device electrically connected to the control unit for displaying the liquid level. The control unit includes a monitor and a fault detector. In operation, the liquid level indicator and controller has two (2) basic modes. The first mode is a monitor mode. In this mode, the liquid level indicator and controller, under the control of the monitor, senses the liquid level in the vessel using the sensors and displays the liquid level on the indicating device. The second mode is a fault detection mode.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: June 10, 2003
    Assignee: Clark-Reliance Corporation
    Inventors: Mark A. Colman, Thomas E. Lee
  • Publication number: 20020134132
    Abstract: The present invention provides a method and system for detecting and cross-checking faulty sensors in liquid level indicators and controllers. A liquid level indicator and controller in which one embodiment of the present invention operates includes a control unit for controlling the other components of the liquid level indicator and controller, sensors electrically connected to the control unit for sensing the level of a liquid in a vessel, and an indicating device electrically connected to the control unit for displaying the liquid level. The control unit includes a monitor and a fault detector. In operation, the liquid level indicator and controller has two (2) basic modes. The first mode is a monitor mode. In this mode, the liquid level indicator and controller, under the control of the monitor, senses the liquid level in the vessel using the sensors and displays the liquid level on the indicating device. The second mode is a fault detection mode.
    Type: Application
    Filed: November 29, 2001
    Publication date: September 26, 2002
    Inventors: Mark A. Colman, Thomas E. Lee
  • Publication number: 20020108440
    Abstract: An improved boiler water-level controller. According to one aspect of the present invention, a positive blowdown signal is presented to indicate to the operator that the alarm probe is in steam; performing blowdown until this indicator turns on helps ensure that the alarm probe is working properly. According to another aspect of the present invention, the controller uses a novel methodology of sensing water level using conductivity probes. An embodiment of this methodology uses the charging and discharging of a capacitor through a resistive value to sense the presence of water.
    Type: Application
    Filed: June 29, 2001
    Publication date: August 15, 2002
    Inventors: Mark A. Colman, Thomas E. Lee
  • Patent number: 6242024
    Abstract: The invention is a vented or unvented packaging system for refrigerated leavened compositions. The packaging system is easily opened by the end consumer and yet is capable of sustaining a desired environment within the package during the storage life of the composition. The invention includes a method for determining package seal strength for a refrigerated leavened composition. The system provides an environment within the package such that the composition attains a desired specific volume upon baking or cooking. The method includes the process of determining the specific volume required for the refrigerated leavened composition after baking, determining internal equilibrium pressure required to attain the specific volume after baking, determining the package dimension subject to the internal equilibrium pressure, and defining the pressure holding capacity required to maintain this pressure during the storage life of the refrigerated composition.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: June 5, 2001
    Assignee: The Pillsbury Company
    Inventors: Michael R. Perry, Mark A. Colman
  • Publication number: 20010002270
    Abstract: The invention is a packaging system for refrigerated leavened compositions. The packaging system is easily opened by the end consumer and yet is capable of sustaining a desired environment within the package during the storage life of the composition. The invention includes a method for determining package seal strength for a refrigerated leavened composition. The system provides an environment within the package such that the composition attains a desired specific volume upon baking or cooking. The method includes the process of determining the specific volume required for the refrigerated leavened composition after baking, determining internal equilibrium pressure required to attain the specific volume after baking, determining the package dimension subject to the internal equilibrium pressure, and defining the pressure holding capacity required to maintain this pressure during the storage life of the refrigerated composition.
    Type: Application
    Filed: December 4, 2000
    Publication date: May 31, 2001
    Applicant: The Pillsbury Company located
    Inventors: Michael R. Perry, Mark A. Colman
  • Patent number: 6012660
    Abstract: A vertically-oriented rotary ice shaving machine in which the drive head assembly (including the ice-engaging mechanism, upper drive linkage, and housing) descend toward the table from the raised position at substantially the same rate. The drive head assembly is supported on telescoping columns, and a telescoping drive shaft connects the motor to the upper drive linkage. Alternately, the motor may be mounted on a carriage which moves reciprocally with the drive head assembly. The drive head assembly may exert downward pressure on the ice block via tension exerted by the telescoping drive shaft and support columns, or due to the weight of the drive head components and motor. Mechanical and electrical interlocks prevent the blade from being raised to an exposed position, and similarly interrupt rotation of the ice block, until the protective doors are closed. The protective doors are secured in the closed position while the blade is extended.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: January 11, 2000
    Assignee: Vaansinn Products, Inc.
    Inventor: Mark Colman
  • Patent number: 5647656
    Abstract: Lighting assemblies are provided for visual indicators which indicate the level of fluid in a container. One such assembly comprises a backlighting assembly for a visual fluid level indicator having front and rear transparent viewing windows for viewing the level of a fluid contained therein, comprising (i) a substantially flat fiber optic panel located proximate the rear transparent viewing window; (ii) an attachment mechanism for attaching the substantially flat fiber optic panel to the visual fluid indicator proximate the rear transparent viewing window; and (iii) an illumination source optically coupled to the substantially flat fiber optic panel. The illumination source is a gas filled light source operating at less than 25 volts A.C. which is enclosed in a waterproof and explosion-proof enclosure, and which is optically coupled to the fiber optic panel by a fiber optic light cable.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: July 15, 1997
    Assignee: Clark- Reliance Corporation
    Inventors: David E. Brown, Mark A. Colman, Michael J. Kett
  • Patent number: 5645336
    Abstract: Lighting assemblies are provided for visual indicators which indicate the level of fluid in a container. One such assembly comprises a backlighting assembly for a visual fluid level indicator having front and rear transparent viewing windows for viewing the level of a fluid contained therein, comprising (i) a substantially flat fiber optic panel located proximate the rear transparent viewing window; (ii) an attachment mechanism for attaching the substantially flat fiber optic panel to the visual fluid indicator proximate the rear transparent viewing window; and (iii) an illumination source optically coupled to the substantially flat fiber optic panel. The illumination source is a gas filled light source operating at less than 25 volts A.C. which is enclosed in a waterproof and explosion-proof enclosure, and which is optically coupled to the fiber optic panel by a fiber optic light cable.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: July 8, 1997
    Assignee: Clark-Reliance Corporation
    Inventors: David E. Brown, Mark A. Colman, Michael J. Kett