With Adjustable Firmness Patents (Class 5/935)
  • Patent number: 7941882
    Abstract: The magnetic cushioning system is for use in a cushion, mattress or other cushioned article, the cushioning system providing adjustable firmness for the user. The magnetic cushioning system includes a plurality of magnetic supports enclosed within a cover. Each of the magnetic supports has a flexible shell having opposed upper and lower ends. A permanent magnet is disposed within the flexible shell and is positioned adjacent the upper end thereof. An electromagnet is disposed within the flexible shell and is positioned adjacent the lower end thereof. The cover has opposed upper and lower surfaces, the magnetic supports having the upper ends thereof secured to a lower face of the upper surface, and the lower ends thereof secured to an upper face of the lower surface of the cover. A controller is provided for selectively and adjustably controlling electrical power transmitted to each electromagnet.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: May 17, 2011
    Inventor: Jeremy Robert Strozer
  • Patent number: 7748066
    Abstract: A mattress includes reduced-firmness materials along a central region thereof in order to mitigate the occurrence of a central ridge following repeated use of the mattress as a sleeping surface. An associated box spring may also, or instead, present a central region with reduced firmness. An adjustable member may be employed to controllably compensate for the development of a central ridge.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: July 6, 2010
    Assignee: Dreamwell, Ltd.
    Inventor: Richard F. Gladney
  • Patent number: 7458121
    Abstract: A health bed capable of adjusting the spine curve of a human body mainly comprises a plurality of elevators. Each of the elevators includes a lower plate having several upholders extending therefrom wherein a motor is fixed on the center of the lower plate and the axle of the motor is a screw engaged with the middle of a motor-driven base such that the motor-driven base can be moved upward or downward by a drive of the screw. The upholders support the motor-driven base is disposed above the lower plate and supported by upholders. A plurality of elastic objects is disposed on the motor-driven base in which the elastic object has a sense stick inside and the sense stick penetrates out of the bottom of the motor-driven base. A height sensor lateral the base may thus measure a downside movement of the elastic objects. The height sensor and the motor are connected to a control circuit that actuates the motors to drive the motor-driven bases upwardly to a desired height by receiving signals from the height sensors.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: December 2, 2008
    Inventor: Han-Chung Hsu
  • Patent number: 7251845
    Abstract: A patient bed and a method for reproducibly positioning and supporting a patient in a medical diagnosis or therapy apparatus, such as a CT apparatus or an MRI apparatus, involve supporting at least regions of the patient body in a desired position on the patient bed and using at least one positioning unit to position the regions of the patient body relative to the patient bed. The patient bed has a number of height-adjustable elements arranged like a matrix that are individually adjustable in terms of height.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: August 7, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Schaller, J├╝rgen Simon
  • Patent number: 6955527
    Abstract: A two-way mounting mode air pump is constructed to include a housing affixed to an inflatable object, a battery case mounted in the housing, the battery case having a female coupling device and power output contacts in the female coupling device, and a motor pump selectively mounted in the housing in either of two directions to selectively pump air into or out of the inflatable object, the motor pump having a male coupling device for coupling to the female coupling device and power input contacts in the male coupling device for contacting the power output contacts.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: October 18, 2005
    Inventor: Stanley Yen
  • Patent number: 6907633
    Abstract: The present invention is directed to diminish the material's creep problem found in inflatable bladders. This is accomplished by positioning an anti-creep zone within a bladder. The anti-creep zone is separated from the remainder of the bladder by a fluid barrier. The fluid barrier can have various embodiments that prevent and/or allow predetermined amounts of fluid into the anti-creep zone.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: June 21, 2005
    Assignee: Gaymar Industries, Inc.
    Inventors: Raymond P. Paolini, Roland E. Flick
  • Patent number: 6793289
    Abstract: A seat back or a seat base of an automobile seat with a frame includes a spring system extending between two opposing cross braces consisting of meander-shaped shaped spring wires and upholstery in a seat surface. The level determined by the supporting surface of the shaped wire springs may be so changed by tension belts passing through the shaped wire springs at different tensions that it is more strongly arched when the belts are in relaxed condition than when they are tightened.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: September 21, 2004
    Inventors: Peer Kuster, Mirko Polak
  • Patent number: 6686711
    Abstract: A method and system for controlling the firmness of an inflatable air mattress wherein an air blower supplies pressurized air to the inflatable chamber(s) of the mattress through a port containing a valve in response to a target fullness selected by the user, the blower operation being controlled by a processor having an array of blower speeds included in a computer readable medium blower so that the speeds are selected in response to the target value.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: February 3, 2004
    Assignee: Comfortaire Corporation
    Inventors: Eric S. Rose, David E. Karr, Ronald D. Cranford
  • Patent number: 6483264
    Abstract: An automatic control system for controlling the firmness of a fluid supported mattress of a bed assembly. The control system includes a motorized fluid pump, a control unit for operating the pump to adjust the firmness of the air mattress, a hand held remote control unit for actuating the control unit, and a transceiver system for transmitting information signals between the hand held unit and the control unit. The air control system provides for independent control of both bladders in a two bladder air mattress from a single unit, and allows a user to consistently set the firmness of each mattress air bladder to a desired value. The air control system includes an air pump specially designed to minimize transmission of motor noise into the environment.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: November 19, 2002
    Assignee: Select Comfort Corporation
    Inventors: David C. Shafer, Eugene P. Duval
  • Patent number: 6378152
    Abstract: A variable firmness mattress structure includes a plurality of longitudinally spaced apart, transversely extending air bladders and an air supply for filling each bladder to a respective desired air pressure to support a user at a desired mattress firmness. A control system for the variable firmness mattress structure includes at air controller cooperating with the air supply for filling the air bladders to desired air pressures and a hand-held controller in communication with the air controller. The hand-held controller is configured to receive a first input from the user indicating that a first desired mattress firmness currently exists and to transmit to the air controller a first signal corresponding to the first input. The first desired mattress firmness corresponds to a first set of respective desired air pressures in the bladders.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: April 30, 2002
    Assignee: Hill-Rom Services, Inc.
    Inventors: Robyn P. Washburn, Ryan A. Reeder, Larry E. Luff, Ares Marasligiller, James R. Stolpmann, Roger D. Dalton, Steven R. Westerfeld, Steven E. Weigold
  • Patent number: 6253401
    Abstract: An air mattress system includes a plurality of inflatable air chambers operatively connected to form an air mattress, a reversible air pump operatively connected to the air chambers, and a manually operable control operatively connected to the air pump for controlling the operation of the air pump. The manually operable control has at least a first setting for operating the air pump in a first direction for inflating the air chambers and at least a second setting for operating the air pump in a second direction for deflating the air chambers. Preferably, at least one inflatable air chamber is disposed below the plurality of air chambers to form a foundation for the air mattress. A gauge is included for measuring the air pressure in at least one of the air chambers, the gauge having a display for displaying the measured air pressure to a user.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: July 3, 2001
    Inventor: Dennis Boyd
  • Patent number: 6243899
    Abstract: A mattress includes a bag in which an amount of fluid is sealed. A portion of the bag is provided with an adjuster which adjust an inner volume of the bag. Adjusting the inner volume changes a pressure of the fluid in the bag which is regarded as a softness or hardness of the mattress. Such an adjustment is established without a supply or a drain of the fluid in and to the bag, respectively.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: June 12, 2001
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Tomonori Tada
  • Patent number: 6037723
    Abstract: An automatic control system for controlling the firmness of a fluid supported mattress of a bed assembly. The control system includes a motorized fluid pump, a control unit for operating the pump to adjust the firmness of the air mattress, a hand held remote control unit for actuating the control unit, and a transceiver system for transmitting information signals between the hand held unit and the control unit. The air control system provides for independent control of both bladders in a two bladder air mattress from a single unit, and allows a user to consistently set the firmness of each mattress air bladder to a desired value. The air control system includes an air pump specially designed to minimize transmission of motor noise into the environment.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: March 14, 2000
    Assignee: Select Comfort Corporation
    Inventors: David C. Shafer, Eugene P. Duval
  • Patent number: 5903941
    Abstract: An automatic control system for controlling the firmness of a fluid supported mattress of a bed assembly. The control system includes a motorized fluid pump, a control unit for operating the pump to adjust the firmness of the air mattress, a hand held remote control unit for actuating the control unit, and a transceiver system for transmitting information signals between the hand held unit and the control unit. The air control system provides for independent control of both bladders in a two bladder air mattress from a single unit, and allows a user to consistently set the firmness of each mattress air bladder to a desired value. The air control system includes an air pump specially designed to minimize transmission of motor noise into the environment.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: May 18, 1999
    Assignee: Select Comfort Corporation
    Inventors: David C. Shafer, Eugene P. Duval
  • Patent number: 5652484
    Abstract: An automatic control system for controlling the firmness of a fluid supported mattress of a bed assembly. The control system includes a motorized fluid pump, a control unit for operating the pump to adjust the firmness of the air mattress, a hand held remote control unit for actuating the control unit, and a transceiver system for transmitting information signals between the hand held unit and the control unit. The air control system provides for independent control of both bladders in a two bladder air mattress from a single unit, and allows a user to consistently set the firmness of each mattress air bladder to a desired value. The air control system includes an air pump specially designed to minimize transmission of motor noise into the environment.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: July 29, 1997
    Assignee: Select Comfort Corporation
    Inventors: David C. Shafer, Eugene P. Duval
  • Patent number: 5547253
    Abstract: An adjustable, tower chair includes a five spoke rolling base having a central portion; and a tower including a lower portion mounted to the central portion of the base, and an upper portion extending upwardly with respect to the lower portion and off-center with respect to the central portion of the base. A seat, a back support, a footrest and a U-shaped armrest are all adjustably mounted to the upper portion of the tower for movement up and down thereon, such that each can be adjusted to the optimum height for a given user.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: August 20, 1996
    Inventors: Edward M. Schwartz, deceased, by Nancy L. Schwartz, administratrix
  • Patent number: 5526543
    Abstract: A method and apparatus for preventing or treating bed sores is disclosed which includes a mattress arrangement having a mattress and depressing means for depressing from underneath the mattress at least one area in the mattress to relieve pressure on at least one bed sore area of a patient. The depressing means includes at least one depression pad connected to a cable threaded through the mattress and attached to a pulling means. Further, a plurality of depression pads can be used to alternatively tilt the patient to relieve pressure from a bed sore area and may be used in conjunction with a mattress raising means to further tilt the patient. An optional conveyor sheet is provided for positioning the patient over the various depressed areas and/or for transferring the patient off the mattress to a wheelchair or other support area.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: June 18, 1996
    Assignee: Nova Technologies, Inc.
    Inventor: Paul DiMatteo
  • Patent number: 5509154
    Abstract: An automatic control system for controlling the firmness of a fluid supported mattress of a bed assembly. The control system includes a motorized fluid pump, a control unit for operating the pump to adjust the firmness of the air mattress, a hand held remote control unit for actuating the control unit, and a transceiver system for transmitting information signals between the hand held unit and the control unit. The air control system provides for independent control of both bladders in a two bladder air mattress from a single unit, and allows a user to consistently set the firmness of each mattress air bladder to a desired value. The air control system includes an air pump specially designed to minimize transmission of motor noise into the environment.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: April 23, 1996
    Assignee: Select Comfort Corporation
    Inventors: David C. Shafer, Eugene F. Duval
  • Patent number: 5283735
    Abstract: An electronic system for adjusting a load bearing surface such as a chair or bed to provide a desired level of comfort includes an array of pressure sensors located within the load bearing surface. The pressure sensors generate data indicating the actual distribution of pressure exerted by a user on the load bearing surface. An electronic processor processes the data generated by the array of pressure senors. The processor compares the fraction of total load exerted on each of a plurality of regions of the load bearing surface with a desired range for each region. If the fraction of total load for any region is not within the desired range, a servo-mechanism is activated to change the shape of the load bearing surface so that the fraction of total load on each region is within the desired range, so as to provide a desired level of comfort to the user.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: February 1, 1994
    Assignee: Biomechanics Corporation of America
    Inventors: Clifford M. Gross, Jose Banaag, Ravi Goonetilleke, Chandra Nair