Manually Powered Patents (Class 37/284)
  • Patent number: 9255368
    Abstract: A snow shover including a scraper blade with a pair of spaced-apart push handles extending rearwardly therefrom. The push handles are pivotally secured to the blade about generally vertical axes. The push handles are length adjustable.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: February 9, 2016
    Inventor: Allen Doolittle
  • Publication number: 20110214316
    Abstract: A contoured snow shovel facilitates the removal of snow and ice. The contoured snow shovel is constructed with a handle attached to an arm portion which, in turn, extends to a shovel segment. The shovel segment comprises a contoured converging blade. Vertical side walls of the contoured converging blade are joined together to form a narrow apex. Due to the narrow apex, the shovel head easily cuts through snow layers and ice. Broken-up particles of the snow and ice collecting along either side of the shovel head, are moved substantially simultaneously in opposite, lateral directions, and plowed from the pathway being shoveled. Walkways and motor pathways are thereby cleared quickly, at low cost in a reliable, efficient manner.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 8, 2011
    Inventor: Juan C. Gomez
  • Patent number: 7305779
    Abstract: An apparatus includes a shaft that has proximal and distal end portions. The shaft includes spaced grip covers conjoined about an outer surface thereof and is provided with a centrally registered sleeve formed therein. An arcuately shaped plow section is affixed to the distal end portion and includes a heel support that has an arcuately shaped top surface for assisting to maintain the plow section registered along a horizontal plane. The plow section further includes fastening members spaced along the bottom edge for removing the bottom edge to be sharpened or replaced. The apparatus further includes a mechanism for pivoting the plow section between alternate radial paths during operating conditions. A mechanism is included for automatically biasing the plow section to an equilibrium position after the plow section is biased to a pivoted position.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: December 11, 2007
    Inventor: Richard A. Purvis
  • Patent number: 6948268
    Abstract: In accordance with the present invention, an articulated, self-supporting shovel is provided for removing material, such as snow from a surface such as a walkway or driveway. The articulated shovel comprises two main components, a wheeled, lateral body frame and a wheeled shovel carriage that is pivotally connected to the body frame and which is angularly adjustable with respect to the body frame. An adjustment arm is provided which is attached to the shovel carriage and which is received by one of a plurality of notches formed into an adjustment rack, which is mounted to the body frame. Through manipulation of the adjustment arm, the shovel carriage is pivoted through a predefined arc and retained at a desired position therealong by inserting the adjustment arm into a corresponding notch. Additionally, a push handle is attached to the body frame and extends therefrom for a user to grasp and to push the shovel.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: September 27, 2005
    Inventor: Michele Ronca
  • Patent number: 6675507
    Abstract: A shovel has an articulated shovel blade for pivoting movement relative to a wheeled carriage on which the blade is mounted. The shovel blade is adjustably locked in position at different angles relative to the direction of travel of the carriage, for pushing snow or other material to the side of the shovel as it travels across the ground. The carriage is pushed forward using a handle or a motor is provided for self-propelling the carriage.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: January 13, 2004
    Inventor: Rocco Petruzzelli
  • Publication number: 20030188462
    Abstract: A shovel has an articulated shovel blade for pivoting movement relative to a wheeled carriage on which the blade is mounted. The shovel blade is adjustably locked in position at different angles relative to the direction of travel of the carriage, for pushing snow or other material to the side of the shovel as it travels across the ground. The carriage is pushed forward using a handle or a motor is provided for self-propelling the carriage.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 9, 2003
    Inventor: Rocco Petruzzelli
  • Patent number: 6435580
    Abstract: The invention relates to a shovel particularly useful for snow removal. The shovel is characterized by dual ground contacting edges allowing the shovel to be self-supporting and which allows the shovel to be used in an ergonomically efficient manner for removing snow from a surface.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: August 20, 2002
    Inventor: Willie Lock
  • Publication number: 20020007574
    Abstract: An easy portable snow sweeper for the movement of snow and of a type having a scooper (1) which communicates at its front with a scooper piece (14,15) and is joined by a beam (10,11). The beam is connected to the perch (22) by screws at the lower end of the beam for scooper screw and suspenders (20) with crooks (21) are used to hold all parts together to provide for moving snow and is made of sturdy light material so that it can be used repeatedly with ease and without fracture.
    Type: Application
    Filed: May 7, 2001
    Publication date: January 24, 2002
    Inventor: Matilda E. Williams
  • Publication number: 20020005001
    Abstract: A snow removing machine comprising a forward and aft drivechangeover switch, a height control operation lever for adjusting the height of a snow removing plate, both mounted to one of grip portions, and a speed control operation lever mounted to the other one of the grip portions. Gripping the grip portions with his respective hands, an operator can manipulate the forward and aft drive changeover switch and the height control operation lever by one of his hands and the speed control operation lever by the other one of his hands, thereby making the operator avoid single hand driving of the machine.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 17, 2002
    Inventors: Isao Yoshida, Yasunori Yamamoto, Norikazu Shimizu, Seishu Sakai, Masakatsu Kono
  • Patent number: 6053548
    Abstract: A manually-operable shovel for efficiently moving material, including a shovel blade, a shovel handle, a joint for attaching the shovel blade to the shovel handle, and an articulation device cooperating with the joint for permitting the operator to position the blade to a predetermined fixed angle in relation to the direction of blade movement for moving the material in a predetermined desired relation to the direction of blade movement. The articulation device is moveable between an unlocked position wherein the angle of the blade in relation to the direction of blade movement is variable and a locked position wherein the angle of the blade is locked into a fixed angle in relation to the direction of blade movement. The articulation device automatically assumes the locked position during a forward, material engaging movement of the shovel and automatically assumes the unlocked position during a rearward material disengaging, movement of the shovel.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: April 25, 2000
    Inventor: Louis G. Bowles, Jr.
  • Patent number: 5975602
    Abstract: A snow shovel construction 10 including a curved and tapered blade member 20 having an enlarged end 21 and a smaller end 22. The blade member 20 is disposed at an angle of approximately relative to a handle member 30 that is provided with a pair of offset hand grip elements 33, 34 and further provided with a reinforcement unit 13 disposed both on the blade member 20 and between the blade member 20 and the handle member 30.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: November 2, 1999
    Inventor: Spencer Zan
  • Patent number: 5956873
    Abstract: The invention is a hand operated snow removal device adjustable for use on both pitched or flat surfaces. It consists of a scooping element supported on an adjustable guide spacer attached to the scooping element adapted to support the scooping element above the snow surface. A handle extends through the scooping element and is adjustably clamped for a flat roof use or a pitched roof use. It is hand operated by a forward and backward motion of the handle which picks up and discharges snow to the side as it is being operated.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: September 28, 1999
    Inventor: Richard W. Hess
  • Patent number: 5791072
    Abstract: An adjustable snowplow designed to remove snow and other materials from various surfaces by pushing the snowplow along the surface. The adjustable snowplow has a handle attached to twin, mirror imaged, curved, blades which are adjustably joined to each other at their respective inner end to form a unitary plow blade. The width or footprint of the plow can be adjusted by angling the blades closer or further from each other to plow a narrower or wider path depending on the task at hand. The symmetry of the blades about the length of the attached handle causes snow and other materials pushed by the plow to be distributed equally to either side of the plow.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: August 11, 1998
    Inventor: Michel Schbot
  • Patent number: 5671553
    Abstract: An apparatus for grading soil or dirt adjacent to a curb, gutter, or other structure. The apparatus includes a blade portion, a handle portion, and a guide which may be attached to the handle or blade portions. The guide can be positionally adjusted relative to the blade portion to set the depth of penetration of the blade into soil. The guide is placed along the curb or gutter when the apparatus is used, with the guide controlling the depth of the blade.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: September 30, 1997
    Inventor: Glenn E. Burkhart
  • Patent number: 5669163
    Abstract: A snow removal device including a blade having an increasing radius of curvature between the lateral ends of the blade. A planar lower edge contacts the underlying surface and increases in contact area between the blade ends. The snow blade further has a forwardly extending flange at one end thereof so as to bear against a vertical surface adjacent a path such as a curb, building, wall or the like. The blade design forwardly and laterally moves successively increasing amounts of snow during a straight line movement of the blade along the path as well as diverts snow from the vertical surface. The blade is engageable with various handle devices, including a mobile push-type assembly. The assembly includes a handle and blade brace mounted about a wheel axle. A latch maintains the handle in an operative position during use.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: September 23, 1997
    Inventor: Clem Winter
  • Patent number: 5493797
    Abstract: A wheeled plow shovel for plowing leaves or snow in a desired direction. The inventive device includes a main panel having a pair of wheels and a scraper blade extending downwardly therefrom. A handle is mounted to the main panel to permit manual manipulation of the device over a ground surface during a plowing procedure. In addition, a pair of slidably mounted wings can be extended laterally of the main body to increase a transverse width of the plowed area.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: February 27, 1996
    Inventor: Robert L. Jackson
  • Patent number: 5440828
    Abstract: A manual snow removal tool has a blade, a pivotable handle, and a load transfer subassembly for structural rigidity and distributing force applied by a user through the handle to the blade. The load transfer subassembly defines an elongated channel, spaced from the handle pivot mount, through which the handle extends. The handle is slidable within the channel over a range of angular positions. The snow removal tool also has an angle adjustment mechanism for selectively positioning the handle at a desired angular position. The shovel can be used to scoop or windrow snow.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: August 15, 1995
    Inventor: Robert C. Simpson
  • Patent number: 5309654
    Abstract: A new and improved combined snow pusher, ice chopper, and broom apparatus for clearing a surface includes a handle which is supported by a support and which projects upward from the top of the support at a first acute angle with respect to the support. Bristles are supported by the support, and the bristles project downward from the bottom of the support by a first distance. A panel element is supported by the support at the front of the support. The panel element is connected directly to the support, and the bottom end of the panel element projects downward past the bottom of the support by a second distance. The second distance is less than the first distance, whereby the portion of the panel element which extends below the support element protects the interface between the bristles and the support, whereby the panel element does not contact the surface to be cleared. The bottom end of the panel element includes a sharp lower edge.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: May 10, 1994
    Inventor: Johnny L. Mathis
  • Patent number: 5159769
    Abstract: Improved materials handling devices for removing materials from surfaces. The devices described herein efficiently and economically remove materials from a surface with little physical effort. Plows for manually removing materials from a surface comprise a first member having a first concave surface oriented in a first direction, a second concave member connected to the first concave member having a second concave surface oriented in a second direction, the second concave member and first concave member being connected at a single area to form a cutting surface, a bracing member connected to the first and second concave members opposite the cutting surface, and a driving member connected to the bracing member for providing driving power to the plow and force which removes the material from the surface.
    Type: Grant
    Filed: January 29, 1991
    Date of Patent: November 3, 1992
    Inventor: Nicola Odorisio
  • Patent number: 5056245
    Abstract: An article of manufacture is provided for use primarily in removal of snow from driveways, sidewalks, decks and other locations where snow accumulates and needs to be removed. Such article of manufacture also may be used as a dolly, sled, or a trailer-like device for pulling by a vehicle or snowmobile.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: October 15, 1991
    Inventors: Stephen L. Jenkins, Stephen L. Jenkins, Jr.
  • Patent number: 4991324
    Abstract: A manual snow removal device is disclosed having horizontally adjustably engageable component working surfaces allowing it to clear a wide or narrow swath depending on the operator capabilities, snow depth or weight and whether a sidewalk or drive way is being cleared. Handles, which can be pivoted or extended, are affixed to the device to facilitate manual use. Trailing dolly wheels are also contemplated.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: February 12, 1991
    Inventors: Mark K. Fine, Michael L. Holben
  • Patent number: 4957170
    Abstract: A shovel having a bottom portion with a surface edge adjacent to a surface to be scraped, top portion, one side portion at an acute internal angle with the surface edge at one end of the shovel and one side edge at an oblique internal angle with the surface edge on the other side. The side portion is located against a curb to direct the path of the shovel as well as to prevent material wedging between the shovel and the curb. The top portion has a means for preventing material for rolling over its top. A handle is attached to the shovel at an acute internal angle so that the user walks directly behind the shovel so as to maximize the transfer of energy for the removal of material. The bottom, top and side portions may be removably connected to the shovel blade so that they can be rotated to expose new wearing surfaces. The shovel may be rotated approximately 90 degrees and the same gutter may be scraped; or, without rotating the shovel, the user may cross to gutter on the other side of the road and scrape it.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: September 18, 1990
    Inventor: Larry D. Beard
  • Patent number: 4910893
    Abstract: A manually operated implement for performing a variety of tasks when equipped with a removable and replaceable utility device, includes a wheeled chassis having an elongate, longitudinal, chassis structural member extending forwardly and rearwardly in the implement centrally of the width thereof and a transverse chassis structural member rigidly attached to the rearward end of said longitudinal chassis member. A pair of wheels are rotatably mounted at opposite ends, respectively, of the transverse chassis member. A slide member is mounted for sliding movement on the longitudinal chassis member and includes a clamping screw for clamping the slide in an adjusted position along such member. Handle structure, preferably of V-shape, is pivotally secured to the slide member and slopes upwardly and rearwardly with its upper, rearward end bifurcated to provide transversely spaced hand grips.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: March 27, 1990
    Inventor: Zane L. Asay
  • Patent number: 4804219
    Abstract: A snow shovel has a blade and a handle extending therefrom. A pair of rollers are mounted behind the lower edge of the blade by an upwardly extending support arm which is mounted on the handle for longitudinal and rotational adjustment.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: February 14, 1989
    Inventor: Clara Berg