while this specification concludes with claims defining the features of the invention that are regarded as novel , it is believed that the invention will be better understood from a consideration of the following description in conjunction with the drawing figures . variations between and among the figures reveal different embodiments . referring now to the drawings , fig1 illustrates one section of a tub 110 in use wherein 110 is the shell of the tub , [[ and ]] 120 is an armrest molded into the tub 110 and 118 is an upper peripheral edge of the shell 110 . the user is shown resting one arm on each armrest 120 . it will be noted that there are armrests 120 on either side of the user . the left armrest 120 l and right armrest 120 r illustrated in this embodiment are mirror images of one another . in alternate embodiments , the left and right armrests might be different from one another or only one armrest may be used . for purposes of this description , only the armrest 120 on the user &# 39 ; s right side is described . however , all that applies to the right side armrest 120 r applies as well to the left side armrest 120 l . the tub 110 may be described as being made up of left and right sidewall side portions 114 , 116 respectively , the rear sidewall 122 and front sidewall ( not shown ). it is not necessary that the user rest either or both arms on the armrests 120 for the tub 110 to be effective . however , resting one or both arms on the armrests 120 can provide additional therapeutic benefits to the hands , fingers , and forearms rested on the armrests 120 . the upright seating position of the user is just one of many ways the user can gain benefit . the user may select any body position which the user finds comfortable or therapeutic . in addition , the tubs which employ this invention may take any form , so long as they have armrests with air and / or water therapy features . the armrests 120 are undercut at 135 to expand the seating area 140 available to the user . inside the curve forming the armrest 120 is a duct 130 for carrying water under pressure . this duct 130 can be tubing or any other effective means for carrying water , which means are well - known to those of ordinary skill in the art . in fig4 , multiple seating areas are shown . fig4 shows that tubing 130 can be routed to provide for continuous flow of water through the tub 110 . the user is seated on a horizontal or nearly horizontal surface or seat 140 . this surface can be flat or can be curved to fit the body contours of users . for some users , curving gives additional comfort . seat 140 connects to left and right sidewall side portions 114 , 116 at corresponding junctures 124 , 126 . armrests 120 l , 120 r each define inner edges 121 l , 121 r which , as can be seen , are closer to each other than the distance between seat attachment junctures 124 , 126 . in this way , as previously stated , the undercut 135 provides an expanded seating space permitting the bather more room and , hence , comfort within the tub . orifices 150 are shown in the armrest 120 . these orifices 150 permit air to flow under pressure from the duct 130 so that , if the user positions his or her body in certain ways , the air bubbles will be emitted onto the user &# 39 ; s hands , fingers , or forearms . this provides a soothing and therapeutic massage to the user . a wall portion extending from the seating area 140 to the floor 170 is shown at 160 . additional orifices 165 are built into the wall 160 . the wall 160 need not be vertical and may be sloped from the vertical to meet the needs of users and to provide additional comfort and can be drafted . the floor 170 of the tub 110 is the lowest part . in a preferred embodiment of a complete tub , the floor extends between and among all the seating areas 140 and forms part of the watertight integrity of the tub 110 . the bottom may have a drain or there may be a drain in another part of the tub . these drains are not illustrated . a handle 180 gives the user something to grasp when entering or exiting the tub . a control unit 190 gives the user the ability to set a desired water temperature and / or air and water flow rates . the control unit 190 may have a timer which will shut off the flow of air or water after a desired period of time . fig2 shows a view of a seating area in an embodiment slightly different from that shown in fig1 . the tub itself is shown as 210 . this embodiment has built - in headrests 220 to add to user comfort . orifices 230 direct water under pressure onto the user &# 39 ; s body parts . if the user is seated as in fig1 , the water from these orifices 230 provides a soothing back massage . here , two columns of orifices 230 are shown , but there can be any number of orifices 230 and these orifices 230 can be of any size . the seat 240 is shown flat , but the seat 240 could be given almost any contour consistent with comfort of the user . seat 240 is integrally connected to left and right sidewall side portions 214 , 216 along junctures 224 , 226 . orifices 250 in the seat 240 permit air under pressure to be emitted at the user providing soothing massage or therapy to the user &# 39 ; s back . the two armrests 260 r and 260 l are shown with air orifices 270 which provide air under pressure to the user &# 39 ; s hands , fingers , and forearms depending on how the user is positioned . armrests 260 l , 260 r respectively define inward facing armrest edges 221 l , 221 r . the control unit 280 conforms to the same description as that of control unit 190 . fig3 shows one seating area of a tub 310 having orifices 320 . armrests left and right 330 l and 330 r with enclosed ducts 340 give the user a place for resting arms and permit water under pressure to be forced onto the user &# 39 ; s fingers , hands , or forearms depending on how the user is positioned . the seat is shown at 350 and the bottom at 360 . in this embodiment , no orifices are shown on the vertical or nearly vertical wall between the seat 350 and floor 360 . tub 310 is comprised of left and right sidewall side portions 314 , 316 , a rear wall 322 , a front wall ( not shown ), and an upper peripheral edge 318 . armrests 330 l , 330 r define inner edges 331 l , 331 r , respectively . seat 250 is connected to left and right sidewall side portions 314 , 316 at seat connection junctures 324 , 326 respectively . as with the tubs shown in fig1 and 2 , inner edges 331 l , 331 r are closer together than seat connection junctures 324 , 326 , thereby forming an undercut area 335 under armrests 330 l , 330 r which provides the bather additional space for bathing . fig4 shows a tub 410 with three seating areas 420 . all parts thereof are shown in other figures . the significance of this embodiment is that single - seating areas are shown joined so that the water flows through the ducts 440 in a continuous path . water escapes the ducts 440 through the orifices such as those specified for fig1 , and 3 . fig5 shows a detail of one embodiment of an armrest 260 and a jet 263 . the jet 263 has a nozzle 520 and a body 530 . jets are commodities . jets are fitted into orifices and vary pressure and volume of water flow according to well - known principles of physics . armrest 260 defines a hand or finger grip 275 at the forward end thereof , which enables a bather to grasp the hand grip 275 to stabilize the bather while moving into and out of the tub and while sitting and moving within the tub . in all embodiments of the invention , water is forced under pressure through tubing or ducts or other passages through outlets such as jets . the water then returns to the lower area of the tub where it is again forced under pressure through tubing or ducts or other passages through orifices so long as the system is turned on . there are many ways well known to persons of ordinary skill in the art of forcing water to flow under pressure . those ways are not a part of the invention and are omitted here . these ways could include a gravity fed water tower , pumps , downhill flow , or even simply using city water pressure if such pressure is sufficient for the user &# 39 ; s purposes . commonly , the user fills the tub from a standard waters supply and pumps , then recirculates the water in the tub through the various conduits and jets / orifices . fig5 is a cross - sectional elevational view of a portion of a tub and armrest having one or more air orifices 270 and at least one water jet 263 which discharges water at a therapeutic flow rate through an opening in substantially vertical side wall 262 of armrest 260 . the upper armrest surface 264 of armrest 260 defines openings 265 therein . the air jets 270 receive a supply of air via any suitable means such as conduits 266 , and the water jet 263 receives a flow of forced water through conduit 267 or any other suitable means . the flow of water emitted out of water jet 263 may be aerated via any suitable means such as an air intake 282 having a check valve 284 associated with an upper opening thereof . water flowing through a narrowing section ( not shown ) of jet 263 , by virtue of the lower pressure therein , draws air through intake 282 from within the confines of the tub body into the flow of water . alternatively , armrest 260 may be provided with air jets 270 only , such that water jet 263 is omitted . conversely , armrest 260 may be provided with a water jet 263 only , either in the side wall 262 or the armrest surface 264 . any combination of air and / or water jets at any positions on armrest 260 is contemplated to be within the scope of my invention , since it has not been heretofore proposed to provide armrests in tubs of this nature having water and / or air therapy features incorporated therein . various modifications and alterations of this inventions will become apparent to those skilled in the art without departing from the scope and spirit of this invention , and it is understood that this invention is not limited to the illustrative embodiments set forth hereinbefore .
a bathing device preferably includes at least one armrest , a seat and a wall connecting the armrest to the seat . the wall preferably defines an undercut arrangement that increases a volume of the bathing device below the armrest to provide additional space for a bather while the bather is seated . the armrest is positioned at a height to support an arm of the bather and preferably defines one or more air and / or fluid emitting orifi that direct a flow of pressurized fluid and / or air onto a hand , finger , and / or forearm of the bather . the bathing device may be a bath tub , hot tub , spa , whirlpool , or pool and may have various jets or other fluid emitting features for conducting fluid and / or air to give the user pleasure or relief from pain . the bathing device may also be sized and shaped to accommodate multiple bathers simultaneously .