Patents by Inventor Amal S Amarasinghe
Amal S Amarasinghe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9168349Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side portions and a rear portion that interconnects the pair of side portions. The pair of side portions includes at least one strap. The rear portion has at least one strap constructed of at least two layers of material. One of the layers of material has a more rigid construction than the other of the layers of material to resist compression of the at least one strap of the rear portion in a first direction which resists movement of the at least one strap of the pair of side straps in the first direction.Type: GrantFiled: April 18, 2013Date of Patent: October 27, 2015Assignee: RESMED LIMITEDInventors: Amal S. Amarasinghe, Perry D. Lithgow, Memduh Guney
-
Patent number: 8875709Abstract: A mask assembly adapted for use with a positive airway pressure device, includes a mask frame, an elbow assembly provided to the frame, a cushion provided to the frame, a forehead support assembly, and a neck to connect the frame to the forehead support assembly, wherein the neck includes a pair of side walls having a streamlined design that is made to look sleek and reduce or minimize obtrusiveness. The pair of side walls may take the form of a single wall or more than two walls. The mask frame may include a recessed port structure including at least one port having access to an interior of the frame which at least in part with the cushion defines a breathing chamber in communication with a nasal passage of the patient in use. The mask frame may also include a channel to receive the cushion. The channel is formed by an outer wall and an inner wall and the channel includes an inner surface having a bead to engage with an outer surface of an edge of the cushion.Type: GrantFiled: May 8, 2008Date of Patent: November 4, 2014Assignee: ResMed LimitedInventors: Aaron S. Davidson, Lemmy Nga, Michael J. Reid, Angelene M. Ozolins, Scott A. Howard, Amal S. Amarasinghe, Dimitri M. Maurer, Bart J. Caffin
-
Patent number: 8826908Abstract: An elbow assembly for use in a respiratory mask, which includes an elbow, an inlet port, an exhaust port, and a baffle separating the inlet port from the exhaust port. A mask assembly includes a cushion comprising at least one gusset and an aperture for connection to the elbow assembly.Type: GrantFiled: December 14, 2007Date of Patent: September 9, 2014Assignee: ResMed LimitedInventors: Joanne E. Drew, Memduh Guney, Amal S. Amarasinghe, Perry D. Lithgow, Anthony M Ging, Borivoje Ljubojevic, Donald Darkin, Grahame B. Aston
-
Publication number: 20130319418Abstract: A mask assembly suitable for the treatment of sleep disordered breathing, comprising: a mask to provide pressurized air to a patient; upper and lower slot features located on each side of the mask; a headgear assembly, comprising: a back portion; a pair of upper straps provided to the back portion, each upper strap having a loop portion and a hook portion at a free end thereof for releasably attaching to the loop portion; a pair of lower straps extending away from the back portion, each lower strap having a loop portion and a hook portion at a free end thereof for releasably attaching to the loop portion; and a connection region of each loop portion of each strap, the connection region being adapted to receive a respective hook portion, the connection region being wider than each respective hook portion along each respective hook portion's entire length.Type: ApplicationFiled: July 10, 2013Publication date: December 5, 2013Inventor: Amal S. AMARASINGHE
-
Publication number: 20130233320Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side portions and a rear portion that interconnects the pair of side portions. The pair of side portions includes at least one strap. The rear portion has at least one strap constructed of at least two layers of material. One of the layers of material has a more rigid construction than the other of the layers of material to resist compression of the at least one strap of the rear portion in a first direction which resists movement of the at least one strap of the pair of side straps in the first direction.Type: ApplicationFiled: April 18, 2013Publication date: September 12, 2013Applicant: RESMED LIMITEDInventors: Amal S. AMARASINGHE, Perry D. LITHGOW, Memduh GUNEY
-
Patent number: 8443805Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side portions and a rear portion that interconnects the pair of side portions. The pair of side portions includes at least one strap. The rear portion has at least one strap constructed of at least two layers of material. One of the layers of material has a more rigid construction than the other of the layers of material to resist compression of the at least one strap of the rear portion in a first direction which resists movement of the at least one strap of the pair of side straps in the first direction.Type: GrantFiled: October 5, 2011Date of Patent: May 21, 2013Assignee: ResMed LimitedInventors: Amal S. Amarasinghe, Perry D. Lithgow, Memduh Guney
-
Publication number: 20120024290Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side portions and a rear portion that interconnects the pair of side portions. The pair of side portions includes at least one strap. The rear portion has at least one strap constructed of at least two layers of material. One of the layers of material has a more rigid construction than the other of the layers of material to resist compression of the at least one strap of the rear portion in a first direction which resists movement of the at least one strap of the pair of side straps in the first direction.Type: ApplicationFiled: October 5, 2011Publication date: February 2, 2012Applicant: ResMed LimitedInventors: Amal S. Amarasinghe, Perry D. Lithgow, Memduh Guney
-
Patent number: 8042543Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side portions and a rear portion that interconnects the pair of side portions. The pair of side portions includes at least one strap. The rear portion has at least one strap constructed of at least two layers of material. One of the layers of material has a more rigid construction than the other of the layers of material to resist compression of the at least one strap of the rear portion in a first direction which resists movement of the at least one strap of the pair of side straps in the first direction.Type: GrantFiled: October 6, 2008Date of Patent: October 25, 2011Assignee: ResMed LimitedInventors: Amal S. Amarasinghe, Perry D. Lithgow, Memduh Guney
-
Publication number: 20100236559Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and at least one locking clip. The frame has a main body and a side frame member provided on each lateral side of the main body, at least one of the side frame members including a locking clip receiver assembly. The at least one locking clip has a main body providing a front portion adapted to be removably coupled with the at least one locking clip receiver assembly and a rear portion adapted to be removably coupled to a headgear assembly. The rear portion includes a cross bar that forms an opening through which a strap of the headgear assembly can pass and be removably coupled with the cross bar, and the front portion includes at least one resiliently flexible spring arm that is flexible within the plane of the main body.Type: ApplicationFiled: May 26, 2010Publication date: September 23, 2010Applicant: ResMed LimitedInventors: Perry D. Lithgow, Memduh Guney, Amal S. Amarasinghe, Timothy Tsun-Fai Fu, Gary C. Robinson, Aaron Samuel Davidson, Milind Chandrakant Raje
-
Patent number: 7753050Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and at least one locking clip. The frame has a main body and a side frame member provided on each lateral side of the main body, at least one of the side frame members including a locking clip receiver assembly. The at least one locking clip has a main body providing a front portion adapted to be removably coupled with the at least one locking clip receiver assembly and a rear portion adapted to be removably coupled to a headgear assembly. The rear portion includes a cross bar that forms an opening through which a strap of the headgear assembly can pass and be removably coupled with the cross bar, and the front portion includes at least one resiliently flexible spring arm that is flexible within the plane of the main body.Type: GrantFiled: September 5, 2003Date of Patent: July 13, 2010Assignee: ResMed LimitedInventors: Perry D. Lithgow, Memduh Guney, Amal S. Amarasinghe, Timothy Tsun-Fai Fu, Gary C. Robinson, Aaron Samuel Davidson, Milind Chandrakant Raje
-
Patent number: 7509958Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side portions and a rear portion that interconnects the pair of side portions. The pair of side portions includes at least one strap. The rear portion has at least one strap constructed of at least two layers of material. One of the layers of material has a more rigid construction than the other of the layers of material to resist compression of the at least one strap of the rear portion in a first direction which resists movement of the at least one strap of the pair of side straps in the first direction.Type: GrantFiled: September 5, 2003Date of Patent: March 31, 2009Assignee: ResMed LimitedInventors: Amal S. Amarasinghe, Perry D. Lithgow, Memduh Guney
-
Patent number: D617446Type: GrantFiled: December 5, 2007Date of Patent: June 8, 2010Assignee: ResMed LimitedInventors: Amal S. Amarasinghe, Perry D. Lithgow, Memduh Guney
-
Patent number: D650895Type: GrantFiled: November 8, 2007Date of Patent: December 20, 2011Assignee: ResMed LimitedInventor: Amal S. Amarasinghe
-
Patent number: D652504Type: GrantFiled: November 14, 2007Date of Patent: January 17, 2012Assignee: ResMed LimitedInventor: Amal S. Amarasinghe
-
Patent number: D652911Type: GrantFiled: February 2, 2010Date of Patent: January 24, 2012Assignee: ResMed LimitedInventor: Amal S. Amarasinghe
-
Patent number: D652912Type: GrantFiled: March 1, 2010Date of Patent: January 24, 2012Assignee: ResMed LimitedInventors: Amal S. Amarasinghe, Perry D. Lithgow, Memduh Guney
-
Patent number: D663413Type: GrantFiled: December 20, 2011Date of Patent: July 10, 2012Assignee: ResMed LimitedInventor: Amal S. Amarasinghe
-
Patent number: D671205Type: GrantFiled: October 19, 2007Date of Patent: November 20, 2012Assignee: ResMed LimitedInventors: Memduh Guney, Timothy Tsun-Fai Fu, Perry D. Lithgow, Amal S. Amarasinghe, Joanne E. Drew, Jim Saada, Borivoje Ljubojevic, Anthony Ging, Susan R. Lynch, Gary C. Robinson, Robert H. Frater
-
Patent number: D699340Type: GrantFiled: December 30, 2011Date of Patent: February 11, 2014Assignee: ResMed LimitedInventors: Amal S. Amarasinghe, Perry David Lithgow, Memduh Guney
-
Patent number: D704826Type: GrantFiled: April 16, 2012Date of Patent: May 13, 2014Assignee: ResMed LimitedInventor: Amal S. Amarasinghe