US4835949A — Operator presence control for self-propelled impl…

Claim 1

Independent Claim 294 words

A self-propelled, walk behind lawn mower comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, said engine operating at a relatively constant rpm, a rotary cutting blade driven by said engine, a handle extending rearwardly from said frame, said handle including a lower portion having a lower end connected to said frame, and an upper end, and said handle also including a rearmost portion pivotally mounted on said upper end of said handle lower portion, extending substantially above said upper end of said lower portion and adapted to be held by a mower operator for guiding said lawn mower, and transmission means operably connected between said engine and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said transmission means including an output element mounted on said frame in spaced relation to and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, means biasing said elements away from each other, cable means operbly connected between said handle rearmost portion and one of said elements, said cable means having an upper end and a lower end, a spring connected between said upper end of said cable means and said handle rearmost portion such that movement of said handle rearmost portion toward said forward position causes elongation of said spring, and means for connecting said lower end of said cable means to said one of said elements such that the force exerted by said spring on said upper end of said cable means is translated into a load biasing said elements into engagement.

Claim 2

Dependent Claim 294 words

A self-propelled, walk behind lawn mower comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, said engine operating at a relatively constant rpm, a rotary cutting blade driven by said engine, a handle extending rearwardly from said frame, said handle including a lower portion having a lower end connected to said frame, and an upper end, and said handle also including a rearmost portion pivotally mounted on said upper end of said handle lower portion, extending substantially above said upper end of said lower portion and adapted to be held by a mower operator for guiding said lawn mower, and transmission means operably connected between said engine and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said transmission means including an output element mounted on said frame in spaced relation to and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, means biasing said elements away from each other, cable means operbly connected between said handle rearmost portion and one of said elements, said cable means having an upper end and a lower end, a spring connected between said upper end of said cable means and said handle rearmost portion such that movement of said handle rearmost portion toward said forward position causes elongation of said spring, and means for connecting said lower end of said cable means to said one of said elements such that the force exerted by said spring on said upper end of said cable means is translated into a load biasing said elements into engagement.

Claim 3

Dependent Claim 230 words

A self-propelled lawn mower comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a cutting blade driven by said engine, a handle connected to said frame and extending rearwardly therefrom, said handle including a lower portion and a rearmost portion adapted to be held by a mower operator for guiding said lawn mower, said rearmost portion being mounted on said lower portion for pivotable movement between a rearward position and a forward position, and multiple speed means operably connected between said engine, said handle, and said drive wheel and operable, in response to movement of said upper handle portion between said positions, for variably and controllably effecting sustained rotation of said drive wheel at more than two speeds within a speed range between zero and substantially above zero, said multiple-speed means including an output element mounted on said frame in spaced relation to and drivingly connected to said wheel, an input element mounted on said frame and driven by said engine, means biasing said elements into non-driving condition, and means connecting said rearmost handle portion and one of said elements for variably forcing said elements into frictional driving engagement with each other in response to movement of said rearmost handle portion between said forward and rearward positions and in opposition to said biasing means.

Claim 4

Dependent Claim 230 words

A self-propelled lawn mower comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a cutting blade driven by said engine, a handle connected to said frame and extending rearwardly therefrom, said handle including a lower portion and a rearmost portion adapted to be held by a mower operator for guiding said lawn mower, said rearmost portion being mounted on said lower portion for pivotable movement between a rearward position and a forward position, and multiple speed means operably connected between said engine, said handle, and said drive wheel and operable, in response to movement of said upper handle portion between said positions, for variably and controllably effecting sustained rotation of said drive wheel at more than two speeds within a speed range between zero and substantially above zero, said multiple-speed means including an output element mounted on said frame in spaced relation to and drivingly connected to said wheel, an input element mounted on said frame and driven by said engine, means biasing said elements into non-driving condition, and means connecting said rearmost handle portion and one of said elements for variably forcing said elements into frictional driving engagement with each other in response to movement of said rearmost handle portion between said forward and rearward positions and in opposition to said biasing means.

Claim 5

Dependent Claim 18 words

A lawn mower as set forth in claim 2 wherein said engine operates at a relatively constant rpm.

Claim 6

Dependent Claim 23 words

A lawn mower as set forth in claim 2 wherein said drive means further includes means biasing said elements away from each other.

Claim 7

Dependent Claim 28 words

A lawn mower as set forth in claim 2 wherein said loading means includes cable means operably connected between said handle rearmost portion an one of said elements.

Claim 8

Dependent Claim 66 words

A lawn mower as set forth in claim 5 wherein said cable means has an upper end connected to said handle rearmost porion such that said upper end is pulled away from said frame in response to pivotal movement of said handle rearmost portion toward said forward position, and wherein said cable means also includes a lower end operably connected to said one of said elements

Claim 9

Dependent Claim 91 words

A lawn mower as set forth in claim 6 wherein said loading means further includes a spring connected between said upper end of said cable means and said handle rearmost portion such that movement of said handle rearmost portion toward said forward position causes elongation of said spring, and means for connecting said lower end of said cable means to said one of said elements such that the force exerted by said spring on said upper end of said cable means is translated into a load biasing said elements into engagement.

Claim 10

Dependent Claim 128 words

A lawn mower as set forth in claim 6 wherein said loading means further includes an arm pivotally movable about a first axis and operably connected to one of said elements for moving said input element into and out of engagement with said output element in response to pivotal movement of said arm, wherein said handle rearmost portion is pivotable about a pivot axis, wherein said upper end of said cable means is connected to said handle rearmost portion at a first point spaced a first distance from said pivot axis, wherein said lower end of said cable means is connected to said arm at a second point spaced a second distance from said first axis, and wherein said first distance is substantially greater than said second distance.

Claim 11

Dependent Claim 30 words

A lawn mower as set forth in claim 2 and further comprising means for limiting pivotal movement of said handle rearmost portion between said rearward position and said forward position.

Claim 12

Dependent Claim 39 words

A lawn mower as set forth in claim 2 wherein said multiple-speed means increases the speed of rotatin fo said drive wheel in response to movement of said handle rearmost portion from said rearward position toward said forward position.

Claim 13

Dependent Claim 36 words

A lawn mower as set forth in claim 10 wherein, in said rearward position, said handle rearmost portion extends rearwardly and upwardly from said frame at a first angle of substantially less than 45° from vertical.

Claim 14

Dependent Claim 18 words

A lawn mower as set forth in claim 11 wherein said first angle is approximately 20° from vertical.

Claim 15

Dependent Claim 36 words

A lawn mower as set forth in claim 11 wherein, in said forward position, said handle rearmost portion extends rearwardly and upwardly from said frame at a second angle spaced approximately 15° from said first angle.

Claim 16

Dependent Claim 28 words

A lawn mower as set forth in claim 13 wherein said first angle is approximately 20° from vertical, and wherein said second angle is approximately 5° from vertical.

Claim 17

Dependent Claim 23 words

A lawn mower as set forth in claim 10 and further comprising means for biasing said handle rearmost portion toward said rearward position.

Claim 18

Dependent Claim 149 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle being adapted to be held by an operator for guiding said implement, and transmission means operably connected between said engine and said drive wheel for variably and controllably affecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said transmission means including an output element mounted on said frame in spaced relation to and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, means biasing said elements into non-engaged condition, and means for variably forcing said elements into frictional driving engagement with each other in opposition to said biasing means.

Claim 19

Dependent Claim 149 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle being adapted to be held by an operator for guiding said implement, and transmission means operably connected between said engine and said drive wheel for variably and controllably affecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said transmission means including an output element mounted on said frame in spaced relation to and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, means biasing said elements into non-engaged condition, and means for variably forcing said elements into frictional driving engagement with each other in opposition to said biasing means.

Claim 20

Dependent Claim 17 words

An implement as set forth in claim 16 wherein said engine operates at a relatively constant rpm.

Claim 21

Dependent Claim 27 words

An implement as set forth in claim 16 wherein said forcing means includes cable means operably connected between said handle rearmost portion and one of said elements.

Claim 22

Dependent Claim 65 words

An implement as set forth in claim 18 wherein said cable means has an upper end connected to said handle rearmost portion such that said upper end is pulled away from said frame in response to pivotal movement of said handle rearmost portion toward said forward position, and wherein said cable means also has a lower end operably connected to said one of said elements.

Claim 23

Dependent Claim 90 words

An implement as set forth in claim 19 wherein said forcing means further includes a spring connected between said upper end of said cable means and said handle rearmost portion such that movement of said handle rearmost portion toward said forward position causes elongation of said spring, and means for connecting said lower end of said cable means to said one of said elements such that the force exerted by said spring on said upper end of said cable means is translated into a load biasing said elements into engagement.

Claim 24

Dependent Claim 127 words

An implement as set forth in claim 19 wherein said forcing means further includes an arm pivotally movable about a first axis and operably connected to one of said elements for moving said input element into and out of engagement with said output element in response to pivotal movement of said arm, wherein said handle rearmost portion is pivotable about a pivot axis, wherein said upper end of said cable means is connected to said handle rearmost portion at a first point spaced a first distance from said pivot axis, wherein said lower end of said cable means is connected to said arm at a second point spaced a second distance from said first axis, and wherein said first distance is substantially greater than said second distance.

Claim 25

Dependent Claim 181 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle including a rearmost portion adapted to be held by an operator for guiding said implement, said handle rearmost portion being pivotable between a rearward position and a forward position, and drive means operably connected between said engine, said handle and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said drive means operating in response to movement of said handle rearmost portion between said rearward position and said forward position, and said drive means including an output element mounted on said frame and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, and means for variably loading said elements so as to force said input element into frictional driving engagement with said output element.

Claim 26

Dependent Claim 181 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle including a rearmost portion adapted to be held by an operator for guiding said implement, said handle rearmost portion being pivotable between a rearward position and a forward position, and drive means operably connected between said engine, said handle and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said drive means operating in response to movement of said handle rearmost portion between said rearward position and said forward position, and said drive means including an output element mounted on said frame and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, and means for variably loading said elements so as to force said input element into frictional driving engagement with said output element.

Claim 27

Dependent Claim 17 words

An implement as set forth in claim 22 wherein said engine operates at a relatively constant rpm.

Claim 28

Dependent Claim 29 words

An implement as set forth in claim 22 and further comprising means for limiting pivotal movement of said handle rearmost portion between said rearward position and said forward position.

Claim 29

Dependent Claim 38 words

An implement as set forth in claim 22 wherein said drive means increases the speed of rotation of said drive wheel in response to movement of said handle rearmost portion from said rearward position toward said forward position.

Claim 30

Dependent Claim 35 words

An implement as set forth in claim 25 wherein, in said rearward position, said handle rearmost portion extends rearwardly and upwardly from said frame at a first angle of substantially less than 45° from vertical.

Claim 31

Dependent Claim 17 words

An implement as set forth in claim 26 wherein said first angle is approximately 20° from vertical.

Claim 32

Dependent Claim 35 words

An implement as set forth in claim 26 wherein, in said forward position, said handle rearmost portion extends rearwardly and upwardly from said frame at sa second angle spaced approximately 15° from said first angle.

Claim 33

Dependent Claim 27 words

An implement as set forth in claim 28 wherein said first angle is approximately 20° from vertical, and wherein said second angle is approximately 5° from vertical.

Claim 34

Dependent Claim 22 words

An implement as set forth in claim 25 and further comprising means for biasing said handle rearmost portion toward said rearward position.

Claim 35

Dependent Claim 221 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle including a lower portion having an upper end, and a rearmost portion adapted to be held by an operator for guiding said implement, said handle rearmost portion being pivotable between a rearward position and a forward position and extending substantially above the upper end of said lower handle portion, and controllable drive means operably connected between said engine, said handle, and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said drive means including an output element mounted on said frame in spaced relation to and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, means biasing said input and output elements into spaced non-driving relation to each other, and means connecting said rearmost portion of said handle and one of said elements for variably forcing said elements into frictional driving engagement with each other and against the action of said biasing means and in response to pivotal movement of said rearmost handle portion.

Claim 36

Dependent Claim 221 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle including a lower portion having an upper end, and a rearmost portion adapted to be held by an operator for guiding said implement, said handle rearmost portion being pivotable between a rearward position and a forward position and extending substantially above the upper end of said lower handle portion, and controllable drive means operably connected between said engine, said handle, and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said drive means including an output element mounted on said frame in spaced relation to and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, means biasing said input and output elements into spaced non-driving relation to each other, and means connecting said rearmost portion of said handle and one of said elements for variably forcing said elements into frictional driving engagement with each other and against the action of said biasing means and in response to pivotal movement of said rearmost handle portion.

Claim 37

Dependent Claim 176 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, and engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle including a rearmost portion adapted to be held by an operator for guiding said implement, said rearmost portion being pivotable between a rearward position and a forward position, and drive means operably connected between said engine, said handle and said drive wheel for variably effecting rotation of said drive wheel at selective speeds within a speed range between zero and substantially above zero, said drive means operating in response to movement of said handle rearmost portion between said rearward position and said forward position, said drive means including an output element mounted on said frame and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, and means for variably loading said elements so as to force said input element into frictional driving engagement with said output element.

Claim 38

Dependent Claim 176 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, and engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle including a rearmost portion adapted to be held by an operator for guiding said implement, said rearmost portion being pivotable between a rearward position and a forward position, and drive means operably connected between said engine, said handle and said drive wheel for variably effecting rotation of said drive wheel at selective speeds within a speed range between zero and substantially above zero, said drive means operating in response to movement of said handle rearmost portion between said rearward position and said forward position, said drive means including an output element mounted on said frame and drivingly connected to said drive wheel, an input element mounted on said frame and driven by said engine, and means for variably loading said elements so as to force said input element into frictional driving engagement with said output element.

Claim 39

Dependent Claim 149 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle being adapted to be held by an operator for guiding said implement, and transmission means operably connected between said engine and said drive wheel for variably and controllably applying a sustained power to said drive wheel at any power within a range between zero and substantially above zero, said transmission means including an output element mounted on said frame in spaced relation to and drivingly connected to said drive wheel, and input element mounted on said frame and driven by said engine, means biasing said elements into non-engaged condition, and means for variably forcing said elements into frictional driving engagement with each other in opposition to said biasing means.

Claim 40

Dependent Claim 149 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle being adapted to be held by an operator for guiding said implement, and transmission means operably connected between said engine and said drive wheel for variably and controllably applying a sustained power to said drive wheel at any power within a range between zero and substantially above zero, said transmission means including an output element mounted on said frame in spaced relation to and drivingly connected to said drive wheel, and input element mounted on said frame and driven by said engine, means biasing said elements into non-engaged condition, and means for variably forcing said elements into frictional driving engagement with each other in opposition to said biasing means.

Claim 41

Dependent Claim 76 words

An implement as set forth in claim 33 wherein said handle includes a rearmost portion which is adapted to be held by the operator and which is pivotable between a rearward position and a forward position, and wherein said transmission means includes drive means operably connected between said engine, said handle and said drive wheel, said drive means operating in response to movement of said handle rearmost portion between said rearward position and said forward position.

Claim 42

Dependent Claim 187 words

A self-propelled lawn mower comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a cutting blade driven by said engine, a handle connected to said frame and extending rearwardly therefrom, said handle including a lower portion having a lower end connected to said frame, and an upper end, and a rearmost portion mounted on said upper end of said handle lower portion for pivotal movement between a rearward position and a forward position, extending substantially above said upper end of said lower portion, and being adapted to be held by a mower operator for guiding said lawn mower, and multiple-speed means operably connected between said engine, said handle, and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at more than two speeds within a speed range between zero and substantially above zero, said multiple-speed means including slip clutch means biased into non-engaged condition and being variably frictionally engaged in response to movement of said handle rearmost portion between said rearward position and said forward position.

Claim 43

Dependent Claim 187 words

A self-propelled lawn mower comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a cutting blade driven by said engine, a handle connected to said frame and extending rearwardly therefrom, said handle including a lower portion having a lower end connected to said frame, and an upper end, and a rearmost portion mounted on said upper end of said handle lower portion for pivotal movement between a rearward position and a forward position, extending substantially above said upper end of said lower portion, and being adapted to be held by a mower operator for guiding said lawn mower, and multiple-speed means operably connected between said engine, said handle, and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at more than two speeds within a speed range between zero and substantially above zero, said multiple-speed means including slip clutch means biased into non-engaged condition and being variably frictionally engaged in response to movement of said handle rearmost portion between said rearward position and said forward position.

Claim 44

Dependent Claim 39 words

A lawn mower as set forth in claim 35 wherein said multiple-speed means increases the speed of rotation of said drive wheel in response to movement of said handle rearmost portion from said rearward position toward said forward position.

Claim 45

Dependent Claim 177 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle including a lower portion having a lower end connected to said frame, and an upper end, and a rearmost portion mounted on said upper end of said handle lower portion for pivotal movement between a rearward position and a forward position, extending substantially above said upper end of said lower portion, and being adapted to be held by a mower operator for guiding said lawn mower, and drive means operably connected between said engine, said handle and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said drive means including slip clutch means biased into non-engaged condition and being variably frictionally engaged in response to movement of said handle rearmost portion between said rearward position and said forward position.

Claim 46

Dependent Claim 177 words

A self-propelled implement comprising a frame having a rearward end, a drive wheel which supports said frame for movement over the ground, an engine supported by said frame, a handle connected to said frame and extending rearwardly therefrom, said handle including a lower portion having a lower end connected to said frame, and an upper end, and a rearmost portion mounted on said upper end of said handle lower portion for pivotal movement between a rearward position and a forward position, extending substantially above said upper end of said lower portion, and being adapted to be held by a mower operator for guiding said lawn mower, and drive means operably connected between said engine, said handle and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at any speed within a speed range between zero and substantially above zero, said drive means including slip clutch means biased into non-engaged condition and being variably frictionally engaged in response to movement of said handle rearmost portion between said rearward position and said forward position.

Claim 47

Dependent Claim 38 words

An implement as set forth in claim 37 wherein said drive means increases the speed of rotation of said drive wheel in response to movement of said handle rearmost portion from said rearward position toward said forward position.

Claim 48

Dependent Claim 76 words

An implement as set forth in claim 16 wherein said handle includes a rearmost portion which is adapted to be held by the operator and which is pivotable between a rearward position and a forward position, and wherein said transmission means includes drive means operably connected between said engine, said handle and said drive wheel, said drive means operating in response to movement of said handle rearmost portion between said rearward position and said forward position.

Claim 49

Dependent Claim 22 words

An implement as set forth in claim 39 wherein said drive means further includes means biasing said elements away from each other.

Claim 50

Dependent Claim 35 words

An implement as set forth in claim 37 wherein said handle lower portion extends vertically a first distance, and wherein said handle rearmost portion extends vertically a second distance substantially greater than said first distance.

Claim 51

Dependent Claim 170 words

A self propelled implement comprising a frame having a rearward end, a drive wheel supporting said frame from movement over the groud, an engine supported by said frame, a handle connected to said frame and including a rigid first portion extending rearwardly from and in fixed relation to said frame and terminating rearwardly in an uppermost part, and an upper portion pivotally connected to said uppermost part of said rigid first portion about a horizontal axis for movement between a rearward position and a forward position, said upper handle portion extending substantially wholly above said uppermost part of said rigid first portion and being adapted to be held by an operator for guiding said implement, and controllable drive means operably connected between said engine, said handle, and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at speeds within a speed range between zero and substantially above zero in response to movement of said handle upper portion between said rearward position and said forward position.

Claim 52

Dependent Claim 170 words

A self propelled implement comprising a frame having a rearward end, a drive wheel supporting said frame from movement over the groud, an engine supported by said frame, a handle connected to said frame and including a rigid first portion extending rearwardly from and in fixed relation to said frame and terminating rearwardly in an uppermost part, and an upper portion pivotally connected to said uppermost part of said rigid first portion about a horizontal axis for movement between a rearward position and a forward position, said upper handle portion extending substantially wholly above said uppermost part of said rigid first portion and being adapted to be held by an operator for guiding said implement, and controllable drive means operably connected between said engine, said handle, and said drive wheel for variably and controllably effecting sustained rotation of said drive wheel at speeds within a speed range between zero and substantially above zero in response to movement of said handle upper portion between said rearward position and said forward position.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-06-05	1992-12-05	1993-06-06	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-06-05	1996-12-05	1997-06-06	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-06-05	2000-12-05	2001-06-06	$7700.00	Window Closed / Lapsed

Operator presence control for self-propelled implements

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