IP Library › Granted Patent US 7,003,381
Granted Patent B2
US 7,003,381 · App. 10/681,933 · Granted Feb 21, 2006

Integral joystick display for a powder driven wheelchair

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Quick Facts
Patent No.
US 7,003,381
App. No.
10/681,933
Granted
Feb 21, 2006
Kind
B2
Abstract

Apparatus of a power driven wheelchair for displaying operational parameters thereof comprises: a programmed controller operative to monitor a plurality of operational parameters of the wheelchair; a joystick unit coupled to the programmed controller; and a display screen integral to the joystick unit. The programmed controller is operative to interact with the joystick unit to display a user selected operational parameter of the plurality on the display screen of the joystick unit. In addition, a method of displaying operational parameters of a power driven wheelchair on a display screen integral to a joystick unit of the wheelchair comprises the steps of: monitoring a plurality of operational parameters of the wheelchair by a programmed controller; coupling the joystick unit to the programmed controller; utilizing the joystick unit to select an operational parameter of the plurality; and operating the programmed controller to interact with the joystick unit to display the selected operational parameter of the plurality on the display screen of the joystick unit.

Claims (30)

1. Apparatus of a power driven wheelchair powered by a battery for displaying operational parameters of said battery, said apparatus comprising:

a programmed controller operative to monitor a plurality of operational parameters of said wheelchair battery;

a joystick unit coupled to said programmed controller; and

a display screen integral to said joystick unit, wherein said programmed controller being operative to interact with said joystick unit to display a user selected battery operational parameter of said plurality on said display screen of said joystick unit.

2. The apparatus of claim 1 wherein the joystick unit is operative to accommodate user selection of a battery operational parameter of the plurality and to communicate the user selection to the programmed controller.

3. The apparatus of claim 2 including a memory coupled to said programmed controller for storing data representative of the monitored battery operational parameters; and wherein the programmed controller is operative in response to the user selection from the joystick unit to access data representative of said user selected battery operational parameter from said memory and to communicate said accessed data to the joystick unit for display on the display screen.

4. The apparatus of claim 2 wherein the joystick unit comprises a joystick operable by a user to a predetermined position to select a battery operational parameter for display on the display screen of the joystick unit.

5. The apparatus of claim 4 wherein the joystick unit is operative in response to movement of the joystick to said predetermined position to communicate a second signal to the programmed controller; and wherein the programmed controller being responsive to the second signal to communicate to the joystick unit data representative of a next battery operational parameter in a predetermined sequence of battery operational parameters for display on the display screen of the joystick unit.

6. The apparatus of claim 5 wherein the programmed controller is responsive to the second signal when in a display select mode.

7. The apparatus of claim 5 wherein the programmed controller continues to communicate to the joystick unit data representative of the next battery operational parameter of the sequence at a predetermined rate in response to the second signal.

8. The apparatus of claim 1 wherein the user selected battery operational parameter of the plurality is displayed on the display screen of the joystick unit in parametric units.

9. The apparatus of claim 1 wherein the display screen is operative to display images in a split screen format; and wherein the user selected battery operational parameter is displayed in one region of the split display screen.

10. The apparatus of claim 9 wherein a battery discharge indicator is displayed in the other region of the split display screen.

11. The apparatus of claim 1 including a serial communication cable for coupling the joystick unit to the programmed controller to accommodate serial data communication therebetween.

12. The apparatus of claim 1 wherein the programmed controller comprises a microcontroller.

13. Method of displaying operational parameters of a battery that powers a power driven wheelchair on a display screen integral to a joystick unit of said wheelchair, said method comprising the steps of:

monitoring a plurality of operational parameters of said wheelchair battery by a programmed controller;

coupling the joystick unit to said programmed controller;

utilizing said joystick unit to select a battery operational parameter of said plurality; and

operating said programmed controller to interact with said joystick unit to display said selected battery operational parameter of said plurality on said display screen of said joystick unit.

14. The method of claim 13 including the steps of:

storing data representative of the monitored battery operational parameters in a memory coupled to the programmed controller;

communicating a selection signal from the joystick unit to the programmed controller; and

operating the programmed controller to respond to the selection signal to access data representative of the selected battery operational parameter from said memory and to communicate said accessed data to the joystick unit for display on the display screen.

15. The method of claim 13 including operating the programmed controller to respond to an activation signal to enter a display select mode of operation.

16. The method of claim 13 including operating a joystick of the joystick unit to a predetermined position to select a battery operational parameter for display on the display screen of the joystick unit.

17. The method of claim 16 including the steps of: operating the joystick unit to communicate a selection signal to the programmed controller in response to movement of the joystick to the predetermined position; and operating the programmed controller to respond to the selection signal to communicate to the joystick unit data representative of a next battery operational parameter in a predetermined sequence of battery operational parameters for display on the display screen of the joystick unit.

18. The method of claim 17 including operating the programmed controller to respond to the selection signal when in a display select mode.

19. The method of claim 17 including operating the programmed controller to continue to communicate to the joystick unit data representative of the next battery operational parameter of the sequence at a predetermined rate in response to the selection signal.

20. The method of claim 13 including displaying the selected battery operational parameter on the display screen of the joystick unit in one region of a split screen format.

Assignments (23)
RELEASE OF SECURITY INTEREST Recorded Nov 17, 2024
From: GLAS TRUST COMPANY LLC
To: INVACARE CORPORATION; FREEDOM DESIGNS, INC.; MOTION CONCEPTS L.P.
Reel/Frame 069386/0475 →
RELEASE OF SECURITY INTEREST Recorded Nov 13, 2024
From: WILMINGTON SAVINGS FUND SOCIETY, FSB
To: INVACARE CORPORATION; FREEDOM DESIGNS, INC; MOTION CONCEPTS L.P.
Reel/Frame 069352/0322 →
ASSIGNMENT OF PATENT SECURITY AGREEMENT Recorded Sep 13, 2024
From: WHITE OAK COMMERCIAL FINANCE, LLC
To: WILMINGTON SAVINGS FUND SOCIETY, FSB
Reel/Frame 068895/0111 →
RELEASE OF SECURITY INTEREST Recorded May 18, 2023
From: PNC BANK, NATIONAL ASSOCIATION
To: INVACARE CORPORATION; ADAPTIVE SWITCH LABORATORIES, INC.; FREEDOM DESIGNS, INC.; MEDBLOC, INC.; INVACARE CREDIT CORPORATION; INVACARE HOLDINGS, LLC; INVAMEX HOLDINGS LLC
Reel/Frame 063695/0106 →
RELEASE OF SECURITY INTEREST Recorded May 16, 2023
From: PNC BANK, NATIONAL ASSOCIATION
To: INVACARE CORPORATION; FREEDOM DESIGNS, INC.; GARDEN CITY MEDICAL INC.; THE AFTERMARKET GROUP, INC.; DYNAMIC MEDICAL SYSTEMS, LLC; INVACARE CONTINUING CARE, INC.; MEDBLOC, INC.; ADAPTIVE SWITCH LABORATORIES, INC.; CENTRALIZED MEDICAL EQUIPMENT LLC; THE HELIXX GROUP, INC.; INVACARE CANADIAN FINANCE, LLC; INVACARE CANDIAN HOLDINGS, INC.; INVACARE CREDIT CORPORATION; INVACARE FLORIDA CORPORATION; INVACARE FLORIDA HOLDINGS, LLC; INVACARE HOLDINGS, LLC; INVACARE INTERNATIONAL CORPORATION; INVAMEX HOLDINGS LLC; INVACARE OUTCOMES MANAGEMENT LLC
Reel/Frame 063668/0639 →
RELEASE OF SECURITY INTEREST Recorded May 16, 2023
From: PNC BANK, NATIONAL ASSOCIATION
To: INVACARE CORPORATION; ADAPTIVE SWITCH LABORATORIES, INC.; THE AFTERMARKET GROUP, INC.; ALTIMATE MEDICAL, INC.; CENTRALIZED MEDICAL EQUIPMENT LLC; CHAMPION MANUFACTURING INC.; FAMILY MEDICAL SUPPLY LLC; THE HELIXX GROUP, INC.; INVACARE CANADIAN HOLDINGS, INC.; INVACARE CANADIAN HOLDINGS, LLC; INVACARE CONTINUING CARE, INC.; INVACARE CREDIT CORPORATION; INVACARE FLORIDA CORPORATION; INVACARE HOLDINGS, LLC; INVACARE INTERNATIONAL CORPORATION; INVACARE SUPPLY GROUP, INC.; INVAMEX HOLDINGS LLC; KUSCHALL, INC.; ROADRUNNER MOBILITY, INCORPORATED; FREEDOM DESIGNS, INC.; GARDEN CITY MEDICAL INC.; INVACARE FLORIDA HOLDINGS, LLC; INVACARE HCS, LLC
Reel/Frame 063662/0430 →
RELEASE OF SECURITY INTEREST Recorded May 16, 2023
From: PNC BANK, NATIONAL ASSOCIATION
To: ADAPTIVE SWITCH LABORATORIES, INC.; INVACARE CORPORATION; THE AFTERMARKET GROUP, INC.; ALTIMATE MEDICAL, INC.; CENTRALIZED MEDICAL EQUIPMENT LLC; CHAMPION MANUFACTURING INC.; FAMILY MEDICAL SUPPLY LLC; THE HELIXX GROUP, INC.; INVACARE CANADIAN HOLDINGS, INC.; INVACARE CANADIAN HOLDINGS, LLC; INVACARE CONTINUING CARE, INC.; INVACARE CREDIT CORPORATION; INVACARE FLORIDA CORPORATION; INVACARE HOLDINGS, LLC; INVACARE INTERNATIONAL CORPORATION; INVACARE SUPPLY GROUP, INC.; INVAMEX HOLDINGS LLC; KUSCHALL, INC.; ROADRUNNER MOBILITY, INCORPORATED; FREEDOM DESIGNS, INC.; GARDEN CITY MEDICAL INC.; INVACARE FLORIDA HOLDINGS, LLC; INVACARE HCS, LLC
Reel/Frame 063668/0679 →
RELEASE OF SECURITY INTEREST Recorded May 15, 2023
From: PNC BANK, NATIONAL ASSOCIATION
To: INVACARE CORPORATION
Reel/Frame 063638/0261 →
PATENT SECURITY AGREEMENT (TRANCHE II NOTES) Recorded May 15, 2023
From: INVACARE CORPORATION; MOTION CONCEPTS L.P; FREEDOM DESIGNS, INC.
To: GLAS TRUST COMPANY LLC, AS COLLATERAL AGENT
Reel/Frame 063637/0705 →
PATENT SECURITY AGREEMENT (TRANCHE I NOTES) Recorded May 12, 2023
From: INVACARE CORPORATION; MOTION CONCEPTS L.P; FREEDOM DESIGNS, INC.
To: GLAS TRUST COMPANY LLC, AS COLLATERAL AGENT
Reel/Frame 064005/0231 →
ASSIGNMENT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY RIGHTS Recorded May 11, 2023
From: GLAS TRUST CORPORATION LIMITED, AS EXISTING COLLATERAL AGENT
To: GLAS TRUST COMPANY LLC, AS SUCCESSOR COLLATERAL AGENT
Reel/Frame 063625/0607 →
INTELLECTUAL PROPERTY RELEASE (TRANCHE I NOTES) Recorded May 10, 2023
From: GLAS TRUST CORPORATION LIMITED, AS COLLATERAL AGENT
To: INVACARE CORPORATION; FREEDOM DESIGNS, INC.
Reel/Frame 063594/0906 →
INTELLECTUAL PROPERTY RELEASE (TRANCHE II NOTES) Recorded May 10, 2023
From: GLAS TRUST CORPORATION LIMITED, AS COLLATERAL AGENT
To: INVACARE CORPORATION; FREEDOM DESIGNS, INC.
Reel/Frame 063601/0183 →
INTELLECTUAL PROPERTY RELEASE (DIP PAYOFF) Recorded May 10, 2023
From: GLAS TRUST CORPORATION LIMITED, AS COLLATERAL AGENT
To: INVACARE CORPORATION; FREEDOM DESIGNS, INC.; MOTION CONCEPTS L.P.
Reel/Frame 063594/0272 →
SECURITY INTEREST Recorded May 5, 2023
From: INVACARE CORPORATION; FREEDOM DESIGNS, INC.; MOTION CONCEPTS L.P.
To: WHITE OAK COMMERCIAL FINANCE, LLC, AS COLLATERAL AGENT
Reel/Frame 063553/0217 →
PATENT SECURITY AGREEMENT Recorded Feb 3, 2023
From: INVACARE CORPORATION; MOTION CONCEPTS L.P.; FREEDOM DESIGNS, INC.
To: GLAS TRUST CORPORATION LIMITED, AS COLLATERAL AGENT
Reel/Frame 063090/0603 →
SECURITY INTEREST Recorded Feb 3, 2023
From: INVACARE CORPORATION; ADAPTIVE SWITCH LABORATORIES, INC.; FREEDOM DESIGNS, INC.; MEDBLOC, INC.; INVACARE CREDIT CORPORATION; INVACARE HOLDINGS, LLC; INVAMEX HOLDINGS, LLC
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 062739/0687 →
PATENT SECURITY AGREEMENT (TRANCHE II NOTES) Recorded Aug 9, 2022
From: INVACARE CORPORATION; FREEDOM DESIGNS, INC.
To: GLAS TRUST CORPORATION LIMITED, AS COLLATERAL AGENT
Reel/Frame 061131/0852 →
PATENT SECURITY AGREEMENT (TERM LOAN) Recorded Aug 9, 2022
From: INVACARE CORPORATION; FREEDOM DESIGNS, INC.
To: GLAS TRUST CORPORATION LIMITED, AS COLLATERAL AGENT
Reel/Frame 061131/0814 →
PATENT SECURITY AGREEMENT (TRANCHE I NOTES) Recorded Aug 9, 2022
From: INVACARE CORPORATION; FREEDOM DESIGNS, INC.
To: GLAS TRUST CORPORATION LIMITED, AS COLLATERAL AGENT
Reel/Frame 061131/0833 →
SECURITY AGREEMENT Recorded Dec 12, 2010
From: INVACARE CORPORATION; ADAPTIVE SWITCH LABORATORIES, INC.; THE AFTERMARKET GROUP, INC.; ALTIMATE MEDICAL, INC.; CENTRALIZED MEDICAL EQUIPMENT LLC; CHAMPION MANUFACTURING INC.; FAMILY MEDICAL SUPPLY LLC; THE HELIXX GROUP, INC.; INVACARE CANADIAN HOLDINGS, INC.; INVACARE CANDIAN HOLDINGS, LLC; INVACARE CONTINUING CARE, INC.; INVACARE CREDIT CORPORATION; INVACARE FLORIDA CORPORATION; INVACARE HOLDINGS, LLC; INVACARE INTERNATIONAL CORPORATION; INVACARE SUPPLY GROUP, INC.; INVAMEX HOLDINGS LLC; KUSCHALL, INC.; ROADRUNNER MOBILITY, INCORPORATED; FREEDOM DESIGNS, INC.; GARDEN CITY MEDICAL INC.; INVACARE FLORIDA HOLDINGS, LLC; INVACARE HCS, LLC
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 025473/0311 →
NOTICE OF GRANT OF SECURITY INTEREST Recorded Mar 14, 2007
From: INVACARE CORPORATION
To: NATIONAL CITY BANK, AS MULTICURRENCY COLLATERAL AGENT
Reel/Frame 019009/0134 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2003
From: WAKEFIELD, THEODORE D., II
To: INVACARE CORPORATION
Reel/Frame 014599/0443 →