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US3824847A Expired / Lapsed US ⏱️ 0.0 years remaining

Automotive brake tester assembly

Assignee: Individual
•
Filing: 1972-08-03
•
Granted: 1974-07-23
•
Expires: 1992-08-03
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Abstract

Abstract An automotive brake tester assembly including a housing with a force applying pedal attached thereto. A brake pedal contact member is slidably disposed in and extends from the housing. A floor board contact member is slidably disposed in and extends from the housing. Scales are disposed on a plate attached to the housing with the first scale indicating the amount of brake pedal travel and the second scale indicating the ratio of the distance between the pedal and floor board when the pedal is fully depressed and the distance between the brake pedal and the floor board when the brake pedal is in the non-depressed position. A first indicator means is connected to the pedal contact member and is movable along the first scale and a second indicator means is connected to the floor board contact member and is movable along the second scale. There is also included a flag connected to the pedal contact member and movable out through an opening in the housing when a predetermined force is being applied to a brake pedal, the predetermined force resulting from depression of a spring which reacts between the pedal contact member and the housing to urge the pedal contact member out of the housing.

Inventors

  • 👤 M Chambers

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 17:25
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/28; B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/221; B60T17/222; B60T17/223

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 110 words
An automotive brake tester assembly comprising: contact means for engaging a brake pedal and for engaging the floor board adjacent the brake pedal when said assembly is so disposed and for moving the brake pedal when actuated, first indicator means operatively connected to said contact means for indicating brake pedal travel, and second indicator means operatively connected to said contact means for indicating a ratio obtained from the distance the brake pedal is moved by said contact means and the distance from the initial engagement with the brake pedal in the nondepressed position by said contact means to the point of engagement of the contact means with the floor board.
Claim 2
Dependent Claim 110 words
An automotive brake tester assembly comprising: contact means for engaging a brake pedal and for engaging the floor board adjacent the brake pedal when said assembly is so disposed and for moving the brake pedal when actuated, first indicator means operatively connected to said contact means for indicating brake pedal travel, and second indicator means operatively connected to said contact means for indicating a ratio obtained from the distance the brake pedal is moved by said contact means and the distance from the initial engagement with the brake pedal in the nondepressed position by said contact means to the point of engagement of the contact means with the floor board.
Claim 3
Dependent Claim 20 words
An assembly as set forth in claim 1 including force applying means for transmitting a force to a brake pedal.
Claim 4
Dependent Claim 36 words
An assembly as set forth in claim 2 including third indicator means operatively connected to said contact means for indicating when a predetermined force is being applied to the brake pedal by said force applying means.
Claim 5
Dependent Claim 37 words
An assembly as set forth in claim 3 wherein said contact means includes a pedal contact member for engaging a brake pedal and a floor board contact member for engaging the floor board of an automotive vehicle.
Claim 6
Dependent Claim 24 words
An assembly as set forth in claim 4 including first motion transmitting means operatively interconnecting said pedal contact member and said first indicator means.
Claim 7
Dependent Claim 25 words
An assembly as set forth in claim 5 including second motion transmitting means operatively interconnecting said floor board contact member and said second indicator means.
Claim 8
Dependent Claim 26 words
An assembly as set forth in claim 6 wherein said first indicator means includes a first scale and a first indicator movable along said first scale.
Claim 9
Dependent Claim 26 words
An assembly as set forth in claim 6 wherein said second indicator means includes a second scale and a second indicator movable along said second scale.
Claim 10
Dependent Claim 24 words
An assembly as set forth in claim 8 including a housing, said pedal contact member being slidably supported by and extending from said housing.
Claim 11
Dependent Claim 23 words
An assembly as set forth in claim 9 wherein said floor board contact member is slidably supported by and extends from said housing.
Claim 12
Dependent Claim 51 words
An assembly as set forth in claim 10 wherein said first motion transmitting means interconnects said pedal contact member and said first indicator so that said first indicator moves relative to said housing as said pedal contact member moves relative to said housing, said first scale being disposed on said housing.
Claim 13
Dependent Claim 53 words
An assembly as set forth in claim 11 wherein said second motion transmitting means interconnects said floor board contact member and said second indicator so that said second indicator moves relative to said housing as said floor board contact member moves relative to said housing, said second scale being disposed on said housing.
Claim 14
Dependent Claim 39 words
An assembly as set forth in claim 12 wherein said force applying means is connected to said housing and including biasing means reacting between said housing and said pedal contact member for biasing the latter out of said housing.
Claim 15
Dependent Claim 42 words
An assembly as set forth in claim 13 wherein said third indicator means is operatively connected to said pedal contact member and indicates when said predetermined force is applied and there is an equal and opposite force supplied by said biasing means.
Claim 16
Dependent Claim 27 words
An assembly as set forth in claim 14 wherein said second indicator comprises a guide connected to said second motion transmitting means and a pointer movable therealong.
Claim 17
Dependent Claim 27 words
An assembly as set forth in claim 15 wherein said first scale includes indicia relating to brake peDal movement for each of standard brakes and power brakes.
Claim 18
Dependent Claim 23 words
An assembly as set forth in claim 16 wherein said second scale includes indicia showing whether said ratio is within the proper limits.
Claim 19
Dependent Claim 17 words
An assembly as set forth in claim 17 wherein said biasing means includes at least one spring.
Claim 20
Dependent Claim 30 words
An assembly as set forth in claim 18 including a second spring reacting between said housing and said floor board contact member for urging the latter out of said housing.
Claim 21
Dependent Claim 494 words
An assembly as set forth in claim 19 wherein said housing is rectangular in cross section with front and rear faces interconnected by sides and including a center wall interconnecting said faces to divide said housing into first and second compartments, a first slot extending along said front face to provide access to said first compartment, a second slot extending along said front face to provide access to said second compartment, said pedal contact member comprising a four-sided hollow member slidably disposed in said first compartment, said floor board contact member comprising a four-sided hollow member slidably disposed in said second compartment, said pedal contact member having a first plug in the distal end thereof, said floor board contact member having a second plug in the distal end thereof, said force applying member comprising a foot pedal, a pin extending through said rear face of said housing and through said first slot and connected to said foot pedal, a reaction member disposed within said pedal contact member, said spring reacting between said reaction member and said first plug, said pedal contact member having slots therein through which said pin extends to allow movement of said pedal contact member relative to said housing, said housing having an enlarged opening along said first slot, said third indicator means including a flag movably connected to said pedal contact member, said pedal contact member having an opening therein, spring means biasing said flag through said opening in said pedal contact member and into engagement with said housing and out through said enlarged opening therein when said spring reacting between said housing and said pedal contact member is compressed a predetermined amount thereby indicating said pre-determined force is being applied to the brake pedal, a first threaded plug disposed in the inward end of said pedal contact member, said first motion transmitting means including a first rod threadedly engaging said threaded plug at a first end and extending along said housing to a second end, a second threaded plug disposed in the inward end of said floor board contact member, said second motion transmitting means including a second rod threadedly engaging said second threaded plug at a first end and extending along said housing to a second end, said scales being disposed on a plate which is connected to said housing, said plate having a pair of slots therein coextensive with said first and second slots in said housing, said first indicator being connected to said second end of said first rod through one of said slots in said plate and through said first slot in said housing, said guide being connected to said second end of said second rod through the other slot in said plate and through said second slot in said housing, a stop disposed in said second compartment, said second spring disposed in said second compartment about said second rod and reacting between said stop and said inward end of said floor board contact member.

References Cited (Backward Citations)

US3602093A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-07-22 1978-01-21 1978-07-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-07-22 1982-01-21 1982-07-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-07-22 1986-01-21 1986-07-23 $7700.00 Window Closed / Lapsed

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