Richard D Masbruch

50640100, Nov 12, 1991

Jun 21, 1989

7/369129

Richard D. Masbruch - Ransomville NY
Arthur A. Andrews - Alden NY

Tennant Company - Minneapolis MN

B62D 1104

180 65

A floor scrubber which is operated by a person walking behind it has two drive wheels individually powered by two reversible electric motors. The rotational speeds and directions of these motors determine forward or reverse travel, the travel speed and the steering of the scrubber, all of which are controlled by the operator through a straight transverse handlebar attached to the rear of the scrubber frame. The handlebar can be twisted to control travel speed in forward or reverse and tilted to control steering right or left while still allowing manual force to be applied directly to the scrubber frame through the handlebar independently of the speed and steering control movements. Travel speed and sharpness of steering are proportional to the magnitude of handlebar movements. Steering can be accomplished at any travel speed including zero, and can be as sharp as turning about the centerline of the machine.

43641385, Dec 21, 1982

Nov 12, 1980

6/206301

Steven J. A. Waldhauser - Lewiston NY
Richard D. Masbruch - Lewiston NY

Wetrok, Inc. - Niagara Falls NY

A47L 1118

15 50R

A floor cleaning machine having drive wheels, scrub brushes, and cleaning liquid applying and pick-up means. The machine has a drive train including a drive motor, a drive axle assembly and the drive wheels. The drive train is mounted on a removable carriage which is slidable laterally of the machine while the latter is in operating position, to provide access to the drive train for maintenance and repair.

43398413, Jul 20, 1982

Nov 12, 1980

6/206276

Steven J. A. Waldhauser - Lewiston NY
Richard D. Masbruch - Lewiston NY

Wetrok, Inc. - Niagara Falls NY

A47L 700
A47L 1130

15359

A squeegee support assembly for automatic floor cleaning machines of the type having a housing, drive wheels, spaced holders for floor cleaning members mounted for powered rotation about a vertically disposed axis and a substantially crescent-shaped vacuum housing and squeegee blade carrying assembly mounted to the housing for articulated movement about a vertical axis which is located at the midpoint between a diametral line passing through the axis of the holding members. The support assembly including an arm support member pivotally mounted to the housing for pivotal movement about a vertical axis, an upper arm having one end pivotally connected to the arm support member for rotation about a horizontal axis, a lower arm having one end pivotally connected to the arm support member below the upper arm end for rotation about a horizontal axis, a connecting structure at the other ends of the arms for pivotally connecting the same to the squeegee assembly and constraining the same to vertical movement with respect to the arm support member, the arms including adjusting means for adjusting the vertical pressure forces of the squeegee assembly against the floor when the blades thereof are in contact therewith and also including means for adjusting the attitude of such blades with respect to the floor surface, and a cable-pulley assembly for vertically lifting the squeegee assembly to it's inoperative position.

44830416, Nov 20, 1984

Sep 30, 1982

6/431051

Steven J. Waldhauser - Niagara Falls NY
Richard D. Masbruch - Ransomville NY

Wetrok, Inc. - Niagara Falls NY

A47L 700
A47L 1130

15359

An improved support (48) for mounting a crescent shaped squeegee assembly (46) on the body (18) of a self propelled walk behind floor scrubbing machine (10) of the type which deposits cleaning fluid on a hard surfaced floor, scrubs the floor, and then squeegees and vacuums the dirty cleaning fluid from the floor. The squeegee supporting means (48) includes first and second intermediate members (84, 98) and first, second, and third pivot means (68, 70, 72). The first pivot means (68) secures the first intermediate member (84) to the body (18) for swinging movement about a generally vertically extending axis (Z). The second pivot means (70) secures a forward portion of a downwardly and rearwardly extending arm (90) to the first intermediate member for swinging movement about a generally transversely extending axis (Y). The second intermediate member is secured to a rear portion of the arm, the securing means including an attitude adjusting member (102). The third pivot means (72) secures the squeegee assembly (46) to the second intermediate member (98) for rocking motion about a generally fore-and-aft extending axis (X), which axis is disposed well below the second pivot forming means (70).

48668044, Sep 19, 1989

Aug 18, 1988

7/233449

Richard D. Masbruch - Ransomville NY
Arthur A. Andrews - Alden NY

Tennant Trend, Inc. - Niagara Falls NY

A47L 11164

15 49R

This is concerned with a surface cleaning machine such as a burnisher or scrubber and is more particularly concerned with a quick connect/disconnect holding and centering structure for high speed brush and pad use which is specifically constructed to accurately center a brush or pad and dampen any vibration so that the brush or pad may be operated at a high speed without special balancing, as well as to allow for each and quick connect or disconnect. The holding and centering structure comprises an opening in the center of a surface cleaning element adapted to receive a driven hub fitted down in the opening. A circumferential formation in the opening is adapted to interferingly bypass a complementary circumferential formation on the hub. One of the circumferential formations is uniformly distortable.

44069804, Sep 27, 1983

May 26, 1981

6/267064

Steven J. A. Waldhauser - Lewiston NY
Richard D. Masbruch - Lewiston NY

Wetrok, Inc. - Niagara Falls NY

H02P 708

318257

A mechanism for controlling the speed and direction of a self-propelled machine, such as, for example, a floor cleaning machine, or the like. A rotatable control handle is provided and includes a speed control cam which moves a variable resistor slide member by means of a speed control arm connected to the cam follower. The variable resistor is connected between a battery power source and a propulsion motor to control the voltage to a speed control. The handle has a neutral position at which the machine is stationary, and rotation of the handle about its own axis in either direction will cause the motor to move the machine, the direction of rotation determining the direction of movement. The control handle carries a series of direction control cams which operate switches to control the direction of flow of current to the motor and thereby the direction in which the machine moves.