| Patent Number |
Title Of Patent |
Date Issued |
| 4633978 |
Brake caliper includes mechanical actuator with camming device and manual wear compensator |
January 6, 1987 |
| A brake caliper is provided for applying a braking force to a wheel, rotor, disc, or the like. The caliper includes a brake actuator, an actuator housing, a bearing for rotatably and slideably receiving the brake actuator in the actuator housing, and a ramp for displacing the brake a |
| 4428184 |
Safety mounting for lawn mower blade |
January 31, 1984 |
| A rotary lawn mower blade mounted on a blade carrier by diametrically spaced bolts is further retained against release from the drive shaft by a retainer fixed on the drive shaft and having a shank extending through a central opening in the blade and having an enlarged head to obstruct |
| 4416107 |
Lawn mower blade control mechanism |
November 22, 1983 |
| A combined safety clutch and brake mechanism for a rotary lawn mower blade has a driven blade carrier with self-energizing centrifugal shoes biased to engagement with a driving drum. Brake drum segments fixed to the shoes are engaged by a brake band which physically forces the shoes to |
| 4335585 |
Lawn trimmer construction |
June 22, 1982 |
| A lawn trimmer has a tubular shaft assembly which structurally and drivingly connects an upper power head to a lower rotary tool head in a lawn-trimming tool. The assembly includes a bent portion to dispose its opposite ends at an angle to each other, and comprises an outer frame sha |
| 4326368 |
Clutch and brake for rotary lawn mower |
April 27, 1982 |
| A lawn mower blade clutch-brake mechanism having a driving drum and a driven blade carrier, the carrier having clutch shoes engageable with the inside of the drum and brake drum segments fixed to the shoes and disposed outside the drum for engagement by an encircling brake band which bot |
| 4316355 |
Combined flywheel and clutch mechanism for lawn mower blade |
February 23, 1982 |
| A lawn mower engine having a lightweight top rotor of low polar inertia drives a rotary blade through a clutch-flywheel rotor having sufficient inertia to provide the major flywheel effect for the engine. Clutch faces at the rotor periphery engage a surrounding blade-carrier drum and hav |
| 4297829 |
Lawn mower blade rotation warning device |
November 3, 1981 |
| A warning device for a lawn mower having a rotary blade driven from a motor through a centrifugal clutch and normally held stopped by a brake which is released by a deadman control. The warning device comprises a flexible clicker post such as a close-wound helical spring carried by the c |
| 4277936 |
Combined flywheel and clutch driver, and control and warning device |
July 14, 1981 |
| A combined engine flywheel and centrifugal clutch driver for a rotary lawn mower blade. Two heavy circular plates, as a quarter-inch steel plate, of large diameter, e.g., six inches, are riveted together against three peripherally spaced pairs of spacer slugs stamped from the same materi |
| 4226021 |
Shaft assembly for lawn trimmer |
October 7, 1980 |
| A drive and frame shaft assembly for a lawn trimming tool or the like, having a bent portion to dispose the tool end of the assembly at an angle to the head end thereof. A curved assembly of a frame shaft and sheath for a flexible drive shaft is formed by, first, assembling onto a straig |
| 4221284 |
Clutch and brake assembly for implement drive |
September 9, 1980 |
| A coil spring clutch connects a driving hub to a driven sleeve rotatable on the hub and the sleeve drives an output or second driven member through a torque limiting clutch. The spring is readily declutched by arresting rotation of its leading end, as by interposing a stop in the path of |
| 4188719 |
Lawn trimmer chain saw attachment |
February 19, 1980 |
| A lawm trimmer chain saw conversion attachment has a mounting blade which mounts to a chain saw power head in place of the chain bar. The blade supports a housing formed of complementary die-cast halves which contains bevel gears between an input shaft that is chain driven at reduced spe |
| 4152881 |
Lawn mower blade rotation warning device |
May 8, 1979 |
| A warning device for a lawn mower having a rotary blade driven from a motor through a centrifugal clutch and normally held stopped by a brake which is released by a deadman control. A clicker arm is pivoted to the clutch driver and spring-pressed toward engagement with the driven clutch |
| 4148173 |
Lawn mower blade control apparatus |
April 10, 1979 |
| A lawn mower blade mounted coaxially at the bottom of a vertical engine drive shaft is normally de-clutched from the shaft and stopped by a brake. When the engine is accelerated, the blade is released by the brake and clutched by a centrifugal clutch to the engine driven shaft. The blade |
| 4148141 |
Lawn trimmer cutter head |
April 10, 1979 |
| A rotary cutter head for a lawn trimmer or the like has a die cast head body comprising a top circular wall and a depending hub, with a plate riveted to the bottom of the hub for forming a spool to receive a winding of flexible cutting line such as monofilament nylon. A peripheral de |
| 4126928 |
Method of making a shaft assembly |
November 28, 1978 |
| A drive and frame shaft assembly for a lawn trimming tool or the like, having a bent portion to dispose the tool end of the assembly at an angle to the head end thereof. A curved assembly of a frame shaft and sheath for a flexible drive shaft is formed by, first, assembling onto a straig |
| 4102214 |
Variable-speed pulley and clutch |
July 25, 1978 |
| A centrifugal clutch and variable-speed pulley has a movable pulley flange mounted for both axial and rotational movement relative to a fixed flange. The fixed flange hub has a cylindrical primary bearing at the opposite side of the pulley groove from the flange and has a hub extension o |
| 4088210 |
Clutches with brake for implements |
May 9, 1978 |
| A coil spring clutch connects a driving hub to a driven sleeve rotatable on the hub and the sleeve drives an output or second driven member through a torque limiting clutch. The spring is readily declutched by arresting rotation of its leading end, as by interposing a stop in the path of |
| 4035994 |
Lawn mower blade control apparatus |
July 19, 1977 |
| Mounting and control apparatus for a driven element such as a lawn mower blade mounted coaxially on an engine drive shaft, in an arrangement in which, under control of a deadman lever, the driven element is normally de-clutched from the shaft and stopped by a brake, as when the driving |
