IP Library Granted Patent US 7,506,385
Granted Patent B2
US 7,506,385 · App. 11/252,961 · Granted Mar 24, 2009

Submersing bathing and transfer chair

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,506,385
App. No.
11/252,961
Granted
Mar 24, 2009
Kind
B2
Abstract

Disclosed is an apparatus for a bathing and transfer chair that provides a stand alone wheeled chair that is configurable to engage a stand alone base, adapted to engage a bathing tub and lower the level of the chair thereby submersing the user in the bath water. The seat portion of the device is adaptable to transfer an individual from the wheeled chair portion of the device, positioned outside of the bathing area, to the submersing base which is positioned within the bathing area. The described embodiments can be custom fit to individual's dimensions, or be refit at any time to accommodate growth and/or size changes. Legs, calf support and back angles as well as chair height can be adjusted independently to maximize positioning options to accommodate the support and comfort of the user.

Claims (59)

1. A bathing and transfer chair for an individual comprising:

a base assembly comprising a rigid structural base frame that supports at least one chair support rail externally of a bath tub;

a submersing bench assembly comprising a rigid structural bench frame that is supported from the bottom of a bathing tub and that supports at least one bench support rail, said submersing bench assembly being mechanically adapted to couple with said base assembly such that said at least one chair support rail aligns coaxially with said at least one bench support rail to create a glide track;

a chair assembly adapted to support an individual that can traverse said glide track between said base assembly and said submersing bench assembly; and,

said submersing bench assembly can be disengaged from said base assembly and manipulated to lower the level of said chair assembly into said bathing tub.

2. The device of claim 1 , wherein said base assembly further comprises a forward chair support rail and a rear chair support rail connected in an approximately parallel manner to one another by a pair of lateral base supports that forms said base frame and is supported by at least 2 legs.

3. The device of claim 2 , wherein said legs of said base assembly are supported by wheels.

4. The device of claim 2 , wherein said legs of said base assembly are adjustable in length.

5. The device of claim 2 , wherein said legs of said base assembly are adaptable in position and orientation to said base frame.

6. The device of claim 1 , wherein said submersing bench assembly further comprises a forward chair support rail and a rear chair support rail connected in an approximately parallel manner to one another by a pair of lateral base supports that forms said bench frame.

7. The device of claim 6 , wherein said bench frame is supported from the base of said bathing tub by at least 2 legs.

8. The device of claim 7 , wherein said bench frame is varied in height by exerting mechanical force to vary the length of said legs.

9. The device of claim 7 , wherein said bench frame is varied in height by exerting mechanical force changing the position of said legs.

10. The device of claim 6 , wherein said bench frame is varied in height by a mechanical force provided by pneumatic or hydraulic lift.

11. The device of claim 6 , wherein said bench frame is varied in height by manual force.

12. The device of claim 6 , wherein said bench frame is varied in height by electromechanical force.

13. The device of claim 1 wherein said chair assembly further comprises:

a seat portion;

a back support; and,

a front chair glide rail and a rear chair glide rail connected in an approximately parallel manner to one another and adapted to engage said glide track and traverse between said base assembly and said submersing bench assembly.

14. The device of claim 13 , wherein an angle of orientation of said back support to said chair assembly is adjustable.

15. The device of claim 13 , wherein said chair assembly further comprises:

a leg rest support.

16. The device of claim 15 , wherein said angle of orientation of said leg rest support to said chair assembly is adjustable.

17. The device of claim 13 , wherein said chair assembly is customizable to fit the variations in anthropomology of an individual.

18. The device of claim 1 , wherein said chair assembly is prevented from traversing said glide track unless said base assembly is coupled to said submersing bench assembly.

19. The device of claim 1 , further comprising:

a lateral bench support that acts as a receiver to join said base assembly and said submersing bench assembly and that forms an intermediate support rail creating a continuous said glide track from said base assembly and said submersing bench assembly.

20. The device of claim 1 , further comprising:

an alignment pin that extends from said submersing bench assembly and that mates with an alignment receiver on said base assembly to align and facilitate docking said base assembly with said submersing bench assembly.

21. The device of claim 1 , further comprising:

a first alignment pin that extends from said submersing bench assembly and that mates with a first alignment receiver on said lateral bench to align and facilitate docking said lateral bench with said submersing bench assembly; and,

a second alignment pin that extends from said base assembly and that mates with a second alignment receiver on said lateral bench to align and facilitate docking said lateral bench with said base assembly.

22. A bathing and transfer chair for an individual comprising:

a wheeled base assembly comprising a rigid structural base frame and at least one chair support rail, said base frame being supported exterior of said tub by at least three wheeled legs;

a submersing bench assembly comprising a rigid structural bench frame and at least one bench support rail, said bench frame is supported from the bottom of a bathing tub and being supported by at least one leg, said submersing bench assembly being mechanically adapted to couple with said wheeled base assembly such that said at least one chair support rail aligns coaxially with said at least one bench support rails to create a glide track;

a chair assembly adapted to support an individual that may independently rest upon said wheeled base assembly or said submersing bench assembly, said chair assembly can traverse said glide track between said wheeled base assembly and said submersing bench assembly; and,

said submersing bench assembly can be disengaged from said base assembly and manipulated to lower the level of said chair assembly into said bathing tub.

23. The device of claim 22 , wherein said wheeled base assembly further comprises a forward chair support rail and a rear chair support rail connected in an approximately parallel manner to one another by a pair of lateral base supports that forms said base frame.

24. The device of claim 22 , wherein said wheeled legs of said wheeled base assembly are adjustable in length.

25. The device of claim 22 , wherein said wheeled legs of said base assembly are adaptable in position and orientation to said base frame.

26. The device of claim 22 , wherein said submersing bench assembly further comprises a forward chair support rail and a rear chair support rail connected in an approximately parallel manner to one another by a pair of lateral base supports that forms said bench frame.

27. The device of claim 22 , wherein said bench frame is varied in height by exerting mechanical force to vary the length of at least one said leg.

28. The device of claim 22 , wherein said bench frame is varied in height by exerting mechanical force changing the position of at least one said leg.

29. The device of claim 22 , wherein said bench frame is varied in height by a mechanical force provided by pneumatic or hydraulic lift.

30. The device of claim 22 , wherein said bench frame is varied in height by manual force.

31. The device of claim 22 , wherein said bench frame is varied in height by electromechanical force.

32. The device of claim 22 wherein said chair assembly further comprises:

seat portion;

a back support; and,

a front chair glide rail and a rear chair glide rail connected in an approximately parallel manner to one another and adapted to engage said glide track and traverse between said base assembly and said submersing bench assembly.

33. The device of claim 32 , wherein an angle of orientation of said back support to said chair assembly is adjustable.

34. The device of claim 32 , wherein said chair assembly further comprises:

a leg rest support.

35. The device of claim 34 , wherein said angle of orientation of said leg rest support to said chair assembly is adjustable.

36. The device of claim 32 , wherein said chair assembly is customizable to fit the variations in anthropomology of an individual.

37. The device of claim 22 , wherein said chair assembly is prevented from traversing said glide track unless said base assembly is coupled to said submersing bench assembly.

38. The device of claim 22 , further comprising:

an alignment pin that extends from said submersing bench assembly and that mates with an alignment receiver on said base assembly to align and facilitate docking said base assembly with said submersing bench assembly.

Assignments (16)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (041454/0806) Recorded Nov 9, 2025
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: COLUMBIA MEDICAL, LLC; MEDICAL DEPOT, INC. (AS SUCCESSOR-BY-ASSIGNMENT TO COLUMBIA MEDICAL, LLC WITH RESPECT TO CERTAIN PATENTS)
Reel/Frame 073513/0611 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (041455/0975) Recorded Nov 9, 2025
From: BARCLAYS BANK PLC, AS COLLATERAL AGENT
To: COLUMBIA MEDICAL, LLC; MEDICAL DEPOT, INC. (AS SUCCESSOR-BY-ASSIGNMENT TO COLUMBIA MEDICAL, LLC WITH RESPECT TO CERTAIN PATENTS)
Reel/Frame 073513/0682 →
SECURITY INTEREST Recorded Nov 3, 2025
From: DEVILBISS HEALTHCARE LLC; HURRYWORKS LLC; INOVO, INC.; MEDICAL DEPOT, INC.; DRIVE MEDICAL CANADA INC.
To: FORTRESS CREDIT CORP., AS COLLATERAL AGENT
Reel/Frame 073529/0050 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 1, 2024
From: COLUMBIA MEDICAL, LLC
To: MEDICAL DEPOT, INC.
Reel/Frame 069054/0981 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jul 27, 2021
From: DELAWARE TRUST COMPANY
To: COLUMBIA MEDICAL, LLC
Reel/Frame 056990/0012 →
SECURITY INTEREST Recorded Oct 4, 2019
From: COLUMBIA MEDICAL, LLC
To: DELAWARE TRUST COMPANY, AS COLLATERAL AGENT
Reel/Frame 050627/0876 →
NOTICE AND CONFIRMATION OF GRANT OF SECURITY INTEREST IN PATENTS - FIRST LIEN Recorded Jan 20, 2017
From: COLUMBIA MEDICAL, LLC
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 041454/0806 →
NOTICE AND CONFIRMATION OF GRANT OF SECURITY INTEREST IN PATENTS - SECOND LIEN Recorded Jan 20, 2017
From: COLUMBIA MEDICAL, LLC
To: BARCLAYS BANK PLC, AS COLLATERAL AGENT
Reel/Frame 041455/0975 →
RELEASE OF SECURITY INTEREST Recorded Jan 3, 2017
From: HEALTHCARE FINANCIAL SOLUTIONS, LLC
To: COLUMBIA MEDICAL, LLC
Reel/Frame 040832/0239 →
ASSIGNMENT OF INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Nov 18, 2015
From: GENERAL ELECTRIC CAPITAL CORPORATION, AS RETIRING AGENT
To: HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS SUCCESSOR AGENT
Reel/Frame 037130/0049 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 11, 2015
From: COLUMBIA MEDICAL MANUFACTURING, LLC
To: COLUMBIA MEDICAL, LLC
Reel/Frame 035611/0093 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE NAME PREVIOUSLY RECORDED AT REEL: 035423 FRAME: 0480. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Apr 20, 2015
From: REHAB PRODUCTS, LLC
To: COLUMBIA MEDICAL, LLC
Reel/Frame 035455/0883 →
CHANGE OF NAME Recorded Apr 14, 2015
From: REHAB PRODUCTS, LLC
To: COLUMBIA MEDICAL MANUFACTURING, LLC
Reel/Frame 035423/0480 →
SECURITY INTEREST Recorded Apr 13, 2015
From: REHAB PRODUCTS, LLC
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
Reel/Frame 035391/0952 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 1, 2015
From: COLUMBIA MEDICAL MANUFACTURING, LLC
To: REHAB PRODUCTS, LLC
Reel/Frame 035306/0822 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2005
From: WERSCHMIDT, GARY S.
To: COLUMBIA MEDICAL MANUFACTURING, LLC
Reel/Frame 017114/0257 →