Patents by Inventor Melvin E. Wolfe

Melvin E. Wolfe 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).

  • Publication number: 20130255029
    Abstract: A portable vacuum cleaner is disclosed. The portable vacuum cleaner includes a rechargeable battery and a DC motor. The portable vacuum cleaner further includes a DC power input port for receiving DC power from a remote power source. The DC motor is operable in response to power from either the battery or the remote power source.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Applicant: SHOP VAC CORPORATION
    Inventors: Melvin E. Wolfe, JR., Scott G. Smith
  • Patent number: 8533902
    Abstract: A vacuum assembly having a housing and a motor and motor shaft secured within the housing; a fan coupled to the motor shaft and an air intake port and an air exhaust port located within the housing; a circuit board mounted in a cooling air path in the housing, wherein the cooling air path is located between the air intake port and the air exhaust port such that the fan causes cool air to flow across the circuit board; a pulley assembly coupled to the motor shaft and including a disposable belt, the pulley assembly located in the housing in such position that the circuit board blocks access to the disposable belt; a first connector portion secured to the circuit board; a second connector portion coupled to a plurality of wires coupled to at least the motor; the first and second connector portions configured to mate in a single direction.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: September 17, 2013
    Assignee: Shop Vac Corporation
    Inventors: Neil N. Norell, Melvin E. Wolfe, Jr., James M. Robitaille, Doug Adams, Jonathan Miller
  • Publication number: 20130086770
    Abstract: A battery powered vacuum cleaner is disclosed. The vacuum cleaner comprises a motor, a battery pack comprising a plurality of battery cells arranged in a generally horseshoe configuration and wrapped about the motor, and a battery door providing access to the battery pack and adapted to permit removal of the battery pack from the vacuum cleaner.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Applicant: SHOP VAC CORPORATION
    Inventor: Melvin E. Wolfe, JR.
  • Patent number: 8381351
    Abstract: A mop bucket assembly is disclosed which allows for moving a bucket from one position to another while reducing spillage from the bucket by using an integrated lid to keep liquid from splashing out of the bucket. The disclosed mop bucket assembly also discloses a mop bucket assembly having a caution or warning sign formed integral with the mop bucket assembly that can be deployed when mopping is in progress.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: February 26, 2013
    Assignee: Shop-Vac
    Inventors: Jonathan Miller, Robert L. Crevling, Jr., Melvin E. Wolfe, Jr., John Griffin, David Martinez
  • Publication number: 20130007979
    Abstract: Mating connectors enable a vacuum cleaner section to be releasably attached to a toolbox section. The connectors include a downward-facing tongue that fits in a corresponding horizontal slot. The tongue has a vertical slot that corresponds with a vertical flange adjacent the slot. An interacting tab and slot prevent the vacuum cleaner section from being removed from the toolbox section when a closeable top on the toolbox section is closed. The two sections attach in a position in which upright side walls on the vacuum cleaner section align with the upright sides on the toolbox section, and an extended horizontal work surface is formed by portions of the hinged top on the toolbox section and the vacuum cleaner section. A handle on the vacuum cleaner section can form part of the horizontal work surface, which has parallel lateral grooves with co-linear segments on opposite sides of a recessed channel.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 10, 2013
    Applicant: SHOP VAC CORPORATION
    Inventors: Melvin E. Wolfe, Robert L. Crevling, JR., Craig A. Seasholtz, Jason Gottschall, John Griffin
  • Patent number: 8312591
    Abstract: A new wall-mountable vacuum cleaner and bracket combination provides easy locking. Both the vacuum cleaner and the bracket have mounting rims. When the vacuum cleaner is on the bracket, a support surface on a proximal end of one of the two mounting rims engages a terminal edge of the other of the two mounting rims. The vacuum cleaner can be secured in place by moving a movable arm from an extended position to a retracted position in which the vacuum cleaner is locked in place. To accommodate the required movement of the movable arm, the bracket has a deflectable locking edge that moves between a rest position and a deflected position.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: November 20, 2012
    Assignee: Shop Vac Corporation
    Inventors: Melvin E. Wolfe, Jr., Kevin D. Fry, Jason Gottschall, John Griffin
  • Patent number: 8141231
    Abstract: An electric motor is described in which a first magnet wire forms a first pole of the coil, is disposed across two terminals of a fuse, and terminates at a first end on a power switch. The portion of the first magnet wire between the terminals of the fuse is severed such that all current of the motor must travel through the conductor of the fuse. The second end of the first magnet wire terminates at dual tang terminal disposed on the brush housing.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: March 27, 2012
    Assignee: Shop Vac
    Inventors: Melvin E. Wolfe, Jr., Mark E. Baer, Alan R. Ayotte
  • Patent number: 8087124
    Abstract: The disclosed disposable vacuum cleaner has a disposable bag with a collar at the bottom, rather than on the sides. Dirty air enters the bag vertically, rather than horizontally, through a duct that is positioned near the floor, separate from the handle on the vacuum cleaner. An elongated, light-weight tube is disposed within the bag, and has a lower end that is connected to the collar. The tube is made of a thin, lightweight, lay-flat tubing with opposed creases, and is flexible and collapsible. It has a length that is greater than half the height of the sides of the bag. The collar has a seal that is trapped between two pieces of mounting material and extends around the periphery of the duct, providing an elastic seal. The bag has a top that is reinforced with a cardboard support. Extending flanges on the support can be used to suspend the bag from arms in the vacuum cleaner.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: January 3, 2012
    Inventor: Melvin E. Wolfe, Jr.
  • Publication number: 20110232026
    Abstract: A vacuum assembly having a housing and a motor and motor shaft secured within the housing; a fan coupled to the motor shaft and an air intake port and an air exhaust port located within the housing; a circuit board mounted in a cooling air path in the housing, wherein the cooling air path is located between the air intake port and the air exhaust port such that the fan causes cool air to flow across the circuit board; a pulley assembly coupled to the motor shaft and including a disposable belt, the pulley assembly located in the housing in such position that the circuit board blocks access to the disposable belt; a first connector portion secured to the circuit board; a second connector portion coupled to a plurality of wires coupled to at least the motor; the first and second connector portions configured to mate in a single direction.
    Type: Application
    Filed: March 28, 2011
    Publication date: September 29, 2011
    Applicant: SHOP VAC CORPORATION
    Inventors: Neil N. Norell, Melvin E. Wolfe, JR., James M. Robitaille, Doug Adams, Jonathan Miller
  • Publication number: 20100170056
    Abstract: A mop bucket assembly is disclosed which allows for moving a bucket from one position to another while reducing spillage from the bucket by using an integrated lid to keep liquid from splashing out of the bucket. The disclosed mop bucket assembly also discloses a mop bucket assembly having a caution or warning sign formed integral with the mop bucket assembly that can be deployed when mopping is in progress.
    Type: Application
    Filed: December 28, 2009
    Publication date: July 8, 2010
    Inventors: Jonathan Miller, Robert L. Crevling, JR., Melvin E. Wolfe, JR., John Griffin, David Martinez
  • Publication number: 20100083456
    Abstract: The disclosed vacuum assembly can be mounted in a vehicle. The motor/fan assembly is positioned above a chassis wall. Lateral flanges on opposed sides of the tank support the tank in generally horizontal sliding motion from a forward position to an elevated rearward position. A rear flange supports the tank as it pivots to a mounted position in which an inlet on a removable lid on the tank communicates with a hose, and an outlet on the lid communicates with the motor/fan assembly. In a removed position, the inlet and outlet are disconnected. Alignment bosses fit in aligned openings when the tank is in the mounted position.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 8, 2010
    Applicant: SHOP VAC CORPORATION
    Inventors: Neil N. Norell, James M. Robitaille, Matthew L. Huff, Melvin E. Wolfe, JR.
  • Patent number: 7241117
    Abstract: A method for assembling a motor shaft with a bearing, a motor housing, and an impeller is disclosed. A motor shaft extension is used to retain the impeller axially on the motor shaft and allows the motor shaft to drive an additional component, such as an impeller, located a distance from the motor. The motor shaft extension may be fabricated from aluminum or hardened steel. Additionally, the motor shaft extension may be embodied in a tube extending past the end of the motor shaft and a shaft extension pressed into the end of the tube.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: July 10, 2007
    Assignee: Shop Vac Corporation
    Inventors: Mark E. Baer, Melvin E. Wolfe, Jr.
  • Patent number: D566351
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: April 8, 2008
    Assignee: Shop Vac Corporation
    Inventors: Robert L. Crevling, Jr., Melvin E. Wolfe, Jr., John Griffin
  • Patent number: D590553
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: April 14, 2009
    Assignee: Shop Vac Corporation
    Inventors: Robert Lent Crevling, Jr., Melvin E. Wolfe, Jr., John Griffin
  • Patent number: D596362
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: July 14, 2009
    Assignee: Shop-Vac Corporation
    Inventors: Robert L. Crevling, Jr., Melvin E. Wolfe, Jr., John Griffin
  • Patent number: D611215
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: March 2, 2010
    Assignee: Shop-Vac
    Inventors: Jonathan Miller, Robert L. Crevling, Jr., Melvin E. Wolfe, Jr., John Griffin, David Martinez
  • Patent number: D619318
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: July 6, 2010
    Assignee: Shop-Vac
    Inventors: Jonathan Miller, Robert L. Crevling, Jr., Melvin E. Wolfe, Jr., John Griffin, David Martinez
  • Patent number: D622463
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: August 24, 2010
    Assignee: Shop Vac Corporation
    Inventors: Melvin E. Wolfe, Jr., John Griffin
  • Patent number: D691336
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 8, 2013
    Assignee: Shop Vac Corporation
    Inventors: John Griffin, Melvin E. Wolfe, Jr., Craig A. Seasholtz
  • Patent number: D691339
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: October 8, 2013
    Assignee: Shop Vac Corporation
    Inventors: John Griffin, Kevin D. Fry, Robert Lent Crevling, Jr., Melvin E. Wolfe, Jr.