the suction control unit ( 1 ) is a re - usable piece of hardware containing a suction vacuum pump ( 2 ), dc motor ( 5 ), rechargeable battery pack ( 7 ) and recharge circuitry ( 9 ). a built - in , battery - powered suction vacuum pump ( 2 ) sucks the urine from the male cup ( 57 ) in the male user embodiment and female pad ( 11 ) of the female user embodiment through a suction hose ( 13 ) and deposits the collected fluid into a urine collection bag ( 3 ). quick - disconnect hose couplings ( 17 ) connect and disconnect the urine collection bag ( 3 ) and suction hose ( 13 ) from the suction control unit ( 1 ). the suction control unit ( 1 ) has two modes of operation : one power “ on / off ” button ( 19 ) and one button that turns the unit “ on ” and then “ off ” after a timed interval ( 21 ). a small , high - power dc motor is used , similar to those used in cordless vacuum cleaners . the dc motor ( 5 ) spins the vacuum pump impeller ( 23 ) to provide the suction required to draw the urine from the urine cavity ( 56 ) of the male cup ( 57 ). the system uses a filter ( 25 ) of charcoal or other material to deodorize the exhaust air . in the preferred embodiment , a battery pack ( 27 ) of rechargeable nickel - metal hydride ( nimh ) batteries are used to provide the power supply for the dc motor ( 5 ). a two - digit lcd status display ( 29 ) with backlight indicates the amount of time remaining in the battery charge , and the number of bladder relieves left in the power supply charge . there are other power supplies available for other applications of this invention , from lithium batteries to 110 - volt wall outlets . the recharge circuitry allows the battery pack to be plugged into a wall outlet for recharging without damaging the batteries . a flow chamber ( 31 ) is contained in the suction control unit ( 5 ). the flow chamber ( 31 ) begins at the suction control unit air / liquid inlet ( 33 ) and ends at both the suction control unit liquid outlet ( 35 ) and the suction control unit air exhaust outlet ( 37 ). this flow chamber ( 31 ) separates moisture from the vacuum airflow and channels the liquid to the suction control unit liquid outlet ( 35 ) and the air to the suction control unit air exhaust outlet ( 37 ). the suction control unit air exhaust outlet ( 37 ) is fitted with a deodorizing air filter ( 25 ). the male cup ( 57 ) is a disposable soft cup , approximately the same size and shape as a men &# 39 ; s athletic protective cup . fig5 shows a cut - away view of a male cup ( 37 ). the cup has four layers : a facing layer ( 39 m ), wicking layer ( 41 m ), urine collection layer ( 43 m ) and moisture proof outer layer ( 45 m ). the moisture proof outer layer ( 45 m ) is attached to and contains the facing layer ( 39 m ), wicking layer ( 41 m ), urine collection layer ( 43 m ) along the edges thereof by means of the outer layer wall ( 46 m ). a urine cavity ( 56 ) is defined by the urine collection layer ( 43 m ) and the moisture proof outer layer ( 45 m ) in the inside cup area ( 53 m ). the facing layer ( 39 m ), which lies against the skin , is made of a soft , non - woven , non - absorbent polymer . the wicking layer ( 41 m ) is made of a woven polymer . it pulls moisture away from the facing layer ( 39 m ) and prevents it from going back through the facing layer ( 39 m ), much like a one - way fluid check valve . the urine collection layer ( 43 m ) is made of an open cell foam material or other material capable of collecting fluid , and provides a urine cavity ( 56 ) in its placement juxtaposed to the moisture proof outer layer ( 45 m ) for the vacuum suction airflow produced by the suction vacuum pump ( 2 ) to suck fluids and moisture out of the male cup ( 57 ) and away from the body . one - way airflow inlet holes ( 48 ) in the top of the male cup ( 57 ) facilitate the evacuation of liquids and provide air flow for drying the male cup &# 39 ; s ( 57 ) layers . an isolation membrane ( 50 ) made of a thin , flexible material such as silicon rubber comfortably keeps a man &# 39 ; s penis inside the male cup ( 57 ) compartment and prevents any leaking . the cup front ( 52 ) is made of a stretchable material such as silicon rubber that opens automatically to accommodate size changes . the suction hose ( 13 ) at the front of the male cup ( 57 ) is connected to the suction control unit ( 1 ). the suction control unit ( 1 ) sucks all fluids from the male cup ( 57 ) through the suction hose ( 13 ) and deposits them into the urine collection bag ( 3 ). in the preferred embodiment , the flexible , disposable suction hose ( 13 ) is outfitted with a quick - disconnect plug ( 51 ) on the end that connects to the suction control unit ( 1 ). the suction hose ( 13 ) may be made of a convoluted , easily bendable material with spiral construction . this allows a smaller bending radius so that the suction hose ( 13 ) can be stowed in a person &# 39 ; s clothing or flight suit while not in use , and permits all of the urine to drain out of the suction hose ( 13 ). the moisture - proof outer layer ( 45 m ) of the male cup ( 57 ) is made of dense rubber to hold the male cup ( 57 ) in place . the male cup ( 57 ) is also held in place with a standard athletic jock strap . most of the outer portion of the male cup ( 57 ) is constructed of soft rubber . the system is compatible with many types of urine collection bags ( 3 ) including a disposable plastic bag containing super absorbent polymer crystals with a 500 cc urine capacity , and a larger , 1600 cc capacity urine collection bag ( 3 ). users who do not want to wear a urine collection bag ( 3 ) for a long period of time can use smaller urine collection bags ( 3 ). a zip lock top on the smaller urine collection bags ( 3 ) allows its use as a standard piddle pack . users who prefer not to change urine collection bags ( 3 ) after each urination can wear a larger leg or pocket urine collection bag ( 3 ). a quick - disconnect similar to the quick - disconnect plug ( 51 ) can also be built into the urine collection bags ( 3 ) for easy attachment and replacement . the suction control unit ( 1 ) can be packaged to double as a pilot &# 39 ; s kneeboard as depicted in fig2 . the kneeboard is molded and adjustable to fit the curve of the thigh . the aircrew member can carry the suction control unit ( 1 ) in his helmet bag or wear it strapped to a thigh without giving the appearance of wearing bladder relief equipment . the quick - disconnect plug ( 51 ) hose couplings allow aircrew members to wait until they are seated in their aircraft or until they have to urinate to connect the urine collection bag ( 3 ) and the suction hose ( 13 ) of the male cup ( 57 ) to the suction control unit ( 1 ). the size and shape of the urine collection bag ( 3 ) is designed to fit within the limited confines of the aircraft cockpit and navigator &# 39 ; s seat . piddle packs used by some male pilots are too long and difficult to open to its full length in a cockpit . wheelchair users require a quieter , more discreet version of the suction control unit ( 1 ) ( i . e . with concealed hoses ). the suction control unit ( 1 ) can be mounted to the person &# 39 ; s wheelchair and the hoses concealed under the person &# 39 ; s clothing . many urinary incontinent adults are not in wheelchairs , but are bedridden . a larger urine collection bag ( 3 ) that does not contain super - absorbent polymer can be attached to the suction control unit ( 1 ) that can be emptied and reused . for ambulatory adults and children , a quiet suction control unit ( 1 ) can be housed in a fanny pack that can also hold a concealed urine collection bag ( 3 ). many urinary incontinent adults do not know in advance that they are about to urinate . it is therefore impractical to expect them to activate the suction control unit ( 1 ) before urinating . instead , a moisture sensor ( 55 ) is installed in the male cup ( 57 ) to automatically activate the suction control unit ( 1 ) when moisture is sensed in the urine cavity ( 56 ). the suction control unit ( 1 ) is a reusable piece of hardware containing a suction vacuum pump ( 2 ), dc motor ( 5 ), rechargeable battery pack ( 7 ) and recharge circuitry ( 9 ). a built - in , battery - powered suction vacuum pump ( 2 ) sucks the urine from the female pad ( 11 ) through a suction hose ( 13 ) at the front of pad and deposits the urine into a urine collection bag ( 3 ). quick - disconnect hose couplings ( 17 ) connect and disconnect the urine collection bag ( 3 ) and the suction hose ( 1 3 ) from the suction control unit ( 1 ). the suction control unit ( 1 ) has two modes of operation : one power “ on / off ” button ( 19 ) and one button that turns the unit “ on ” and then “ off ” after a timed interval ( 21 ). a small , high - power dc motor ( 5 ) is used , similar to those used in cordless vacuum cleaners . the dc motor ( 5 ) spins the vacuum pump impeller ( 23 ) to provide the suction required to draw the urine from the female pad ( 11 ). the system uses a filter ( 25 ) of charcoal or other material to deodorize the exhaust air . in the preferred embodiment , a battery pack ( 27 ) of rechargeable nickel - metal hydride ( nimh ) batteries are used to provide the power supply for the dc motor . a two - digit lcd status display ( 29 ) with backlight indicates the amount of time remaining in the battery charge , and the number of bladder relieves left in the power supply charge . there are other power supplies available for other applications of this invention , from lithium batteries to 110 - volt wall outlets . the recharge circuitry allows the battery pack ( 27 ) to be plugged into a wall outlet for recharging without damaging the batteries . a flow chamber ( 31 ) is contained in the suction control unit ( 1 ). the flow chamber ( 31 ) begins at the suction control unit air / liquid inlet ( 33 ) and ends at both the suction control unit liquid outlet ( 35 ) and the suction control unit air exhaust outlet ( 37 ). this flow chamber ( 31 ) separates moisture from the vacuum airflow and channels the liquid to the suction control unit liquid outlet ( 35 ) and the air to the suction control unit air exhaust outlet ( 37 ). the suction control unit air exhaust outlet ( 37 ) is fitted with a deodorizing air filter ( 25 ). the female pad ( 11 ) is a disposable urine collection pad similar in size to a large feminine pad used for menstruation . fig3 shows an expanded view of the female pad ( 11 ). the female pad ( 11 ) has four layers : a facing layer ( 39 ), wicking layer ( 41 ), urine collection layer ( 43 ) and moisture - proof outer layer ( 45 ). the moisture proof outer layer ( 45 ) is attached to and contains the facing layer ( 39 ), wicking layer ( 41 ), urine collection layer ( 43 ) along the edges thereof by means of the outer layer wall ( 46 ). a urine cavity ( 56 ) is defined by the urine collection layer ( 43 ) and the moisture proof outer layer ( 45 ) in the inside cup area ( 53 ). the facing layer ( 39 ), which lies directly against the skin , is made of a soft , non - woven , non - absorbent polymer . the wicking layer ( 41 ) is made of a woven polymer . it pulls moisture away from the facing layer ( 39 ) and prevents it from going back through the facing layer ( 39 ), much like a one - way fluid check valve . the urine collection layer ( 43 ) is made of open cell foam or other material or other material capable of collecting fluid , and provides a urine cavity ( 56 ) in its placement juxtaposed to the moisture proof outer layer ( 45 ) for the vacuum suction airflow produced by the suction vacuum pump ( 2 ) to suck fluids and moisture out of the female pad ( 11 ) and away from the body . the moisture proof outer layer ( 45 ), a moisture - proof barrier made of soft , flexible plastic , wraps around the sides of the female pad ( 11 ) to prevent side leakage . one - way airflow inlet holes ( 47 ) in the back end of the female pad ( 11 ) facilitate the evacuation of liquids and provide air flow for drying the female pad &# 39 ; s ( 11 ) layers . the female pad ( 11 ) has a contoured shape for a more comfortable and reliable fit . soft sealing strips ( 49 ) around the female pad ( 11 ) face perimeter prevent side leaks . the female pad ( 11 ) is held in place with a comfortable but sturdy undergarment available in women &# 39 ; s apparel stores . the suction hose ( 13 ) at the front of the female pad ( 11 ) is connected to the suction control unit ( 1 ). the suction control unit ( 1 ) sucks all fluids from the female pad ( 11 ) through the suction hose ( 13 ) and deposits them into the urine collection bag ( 3 ). in the preferred embodiment , the flexible , disposable suction hose ( 13 ) is outfitted with a quick - disconnect plug ( 51 ) on the end that connects to the suction control unit ( 1 ). the suction hose ( 13 ) may be made of a convoluted , easily bendable material with spiral construction . this allows a smaller bending radius so that the suction hose ( 13 ) can be stowed in a person &# 39 ; s clothing or flight suit while not in use , and permits all of the urine to drain out of the suction hose ( 13 ). the system is compatible with many types of urine collection bags ( 3 ) including a disposable plastic bag containing super absorbent polymer crystals with a 500 cc urine capacity , and a larger , 1600 cc capacity bag . users who do not want to wear a urine collection bag ( 3 ) for a long period of time can use smaller urine collection bags ( 3 ). users who prefer not to change urine collection bags ( 3 ) after each urination can wear a larger leg or pocket urine collection bags ( 3 ). a quick - disconnect similar to the quick - disconnect plug ( 51 ) can also be built into the urine collection bags ( 3 ) for easy attachment and replacement . the suction control unit ( 1 ) can be packaged to double as a pilot &# 39 ; s kneeboard as depicted in fig2 . the kneeboard is molded and adjustable to fit the curve of the thigh . the aircrew member can carry the suction control unit ( 1 ) in her helmet bag or wear it strapped to a thigh without giving the appearance of wearing bladder relief equipment . the quick - disconnect plug ( 51 ) suction hose ( 13 ) couplings allow aircrew members to wait until they are seated in their aircraft or until they have to urinate to connect the urine collection bag ( 3 ) and the female pad ( 11 ) suction hose ( 13 ) to the suction control unit ( 1 ). the size and shape of the urine collection bag ( 13 ) is designed to fit within the limited confines of the aircraft cockpit and navigator &# 39 ; s seat wheelchair users require a quieter , more discreet version of the suction control unit ( 1 ) ( i . e . with concealed hoses ). the suction control unit ( 1 ) can be mounted to the person &# 39 ; s wheelchair and the hoses concealed under the person &# 39 ; s clothing . many urinary incontinent adults are not in wheelchairs , but are bedridden . a larger urine collection bag ( 3 ) that does not contain super absorbent polymer can be attached to the suction control unit ( 1 ) that can be emptied and reused . for ambulatory adults and children , a quiet suction control unit ( 1 ) can be housed in a fanny pack that can also hold a concealed urine collection bag ( 3 ). many urinary incontinent adults do not know in advance that they are about to urinate . it is therefore impractical to expect them to activate the suction control unit ( 1 ) before urinating . instead , a moisture sensor ( 55 ) is installed in the female pad ( 11 ) to automatically activate the suction control unit ( 1 ) when moisture is sensed in the urine cavity ( 56 ). a quieter , more discreet version of the suction control unit ( 1 ) for wheelchair users ( i . e . with concealed hoses ). the suction control unit ( 1 ) could be mounted to the person &# 39 ; s wheelchair and the suction hoses ( 13 ) concealed under the person &# 39 ; s clothing . many urinary incontinent adults are not in wheelchairs , but are bedridden . a larger urine collection bag ( 3 ) that does not contain super - absorbent polymer can be used that can be emptied by staff / care - givers and reused . many urinary incontinent adults do not know in advance that they are about to urinate . it is therefore impractical to expect them to activate the suction control unit ( 1 ) before urinating . instead , a moisture sensor ( 55 ) can be installed in the female pad ( 11 ) and male cup ( 57 ) that will automatically activate the suction control unit ( 1 ) when moisture is sensed in the urine cavity ( 56 ). while my above descriptions of the invention , its parts , and operations contains many specificities , these should not be construed as limitations on the scope of the invention , but rather as exemplifications of present embodiments thereof . many other variations are possible , for example , other embodiments , shapes , and sizes of the device can be constructed to fit on a user and work with a unit designed to work by the principles of the present invention ; various materials , pumps , colors and configurations can be employed in the unit &# 39 ; s design that would provide interesting embodiment differences to users including such practical designs as would , for instance conceal the unit . accordingly , the scope of the invention should be determined not by the embodiments illustrated , but by the claims and their legal equivalents as filed herewith .
this invention relates to an automatic or semi - automatic bladder relief system , specifically designed to increase the overall sanitation and comfort for users that may require a means to dispose of their urine in the absence of other sanitary facilities due to situations such as aircraft pilots and incontinent individuals .