Patents by Inventor Thomas P. Bjorholm
Thomas P. Bjorholm 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: 9249617Abstract: Described is an animal door that is movable between a closed position and an open position and that has an adjustable resistance against the door being removed from the closed position to the open position. More specifically, the animal door defines a passageway and includes a flap that is moveable between the closed position and the open position, whereby the flap obstructs the passageway when at the closed position. The animal door generates a magnetic force that generates a resistance against the flap being moved from the closed position to the open position, whereby magnitude of the magnetic force, and thus the resistance, is adjustable.Type: GrantFiled: September 11, 2008Date of Patent: February 2, 2016Assignee: Radio Systems CorporationInventors: James R. Bosserdet, Jr., Thomas P. Bjorholm
-
Patent number: 7921811Abstract: Described is an electronic pet door for automatically granting a selected animal access to a through-way defined by the electronic pet door and denying a non-selected animal access to the through-way. The selected animal carries a transmitter. The electronic pet door includes a corresponding receiver and a frame that defines the through-way, which has a tapered contour. A flap, which has a tapered contour corresponding to the through-way, is disposed within the through-way and is capable of a locked position and an unlocked position. When in the locked position, the flap denies access to the through-way. When unlocked, the flap grants an animal access to the through-way. The flap is locked and unlocked by way of a locking mechanism that shifts the flap longitudinally between the less tapered and most tapered portions of the through-way. The locking mechanism shifts the flap in response to the receiver.Type: GrantFiled: May 19, 2010Date of Patent: April 12, 2011Assignee: Radio Systems CorporationInventors: James R. Bosserdet, Jr., Thomas P. Bjorholm, George M. Smart, IV, Andrew S. Grimmett, Lane Whiteside
-
Patent number: 7798103Abstract: Described is an electronic pet door for automatically granting a selected animal access to a through-way defined by the electronic pet door and denying a non-selected animal access to the through-way. The selected animal carries a transmitter. The electronic pet door includes a corresponding receiver and a frame that defines the through-way, which has a tapered contour. A flap, which has a tapered contour corresponding to the through-way, is disposed within the through-way and is capable of a locked position and an unlocked position. When in the locked position, the flap denies access to the through-way. When unlocked, the flap grants an animal access to the through-way. The flap is locked and unlocked by way of a locking mechanism that shifts the flap longitudinally between the less tapered and most tapered portions of the through-way. The locking mechanism shifts the flap in response to the receiver.Type: GrantFiled: January 9, 2008Date of Patent: September 21, 2010Assignee: Radio Systems CorporationInventors: James R. Bosserdet, Jr., Thomas P. Bjorholm, George M. Smart, IV, Andrew S. Grimmett, Lane Whiteside
-
Publication number: 20100218427Abstract: Described is an electronic pet door for automatically granting a selected animal access to a through-way defined by the electronic pet door and denying a non-selected animal access to the through-way. The selected animal carries a transmitter. The electronic pet door includes a corresponding receiver and a frame that defines the through-way, which has a tapered contour. A flap, which has a tapered contour corresponding to the through-way, is disposed within the through-way and is capable of a locked position and an unlocked position. When in the locked position, the flap denies access to the through-way. When unlocked, the flap grants an animal access to the through-way. The flap is locked and unlocked by way of a locking mechanism that shifts the flap longitudinally between the less tapered and most tapered portions of the through-way. The locking mechanism shifts the flap in response to the receiver.Type: ApplicationFiled: May 19, 2010Publication date: September 2, 2010Applicant: Radio Systems CorporationInventors: James R. Bosserdet, JR., Thomas P. Bjorholm, George M. Smart, Andrew S. Grimmett
-
Publication number: 20090255481Abstract: Described is an animal door that is movable between a closed position and an open position and that has an adjustable resistance against the door being removed from the closed position to the open position. More specifically, the animal door defines a passageway and includes a flap that is moveable between the closed position and the open position, whereby the flap obstructs the passageway when at the closed position. The animal door generates a magnetic force that generates a resistance against the flap being moved from the closed position to the open position, whereby magnitude of the magnetic force, and thus the resistance, is adjustable.Type: ApplicationFiled: September 11, 2008Publication date: October 15, 2009Inventors: James R. Bosserdet, JR., Thomas P. Bjorholm
-
Publication number: 20080184625Abstract: Described is an animal door for providing an animal a passageway through a structure and for reducing thermal transfer through the passageway. The animal door defines the passageway, which is sufficiently large for the animal to pass through, and is adapted to be secured to the structure such that the animal can pass through the structure by passing through the passageway. The animal door includes at least three flaps disposed at the passageway. The flaps are constructed and configured to reduce thermal transfer through the passageway by reducing both thermal convection and thermal conductivity at the passageway.Type: ApplicationFiled: January 9, 2008Publication date: August 7, 2008Applicant: Radio Systems CorporationInventors: Thomas P. Bjorholm, Robert T. Haas
-
Publication number: 20080184940Abstract: Described is an electronic pet door for automatically granting a selected animal access to a through-way defined by the electronic pet door and denying a non-selected animal access to the through-way. The selected animal carries a transmitter. The electronic pet door includes a corresponding receiver and a frame that defines the through-way, which has a tapered contour. A flap, which has a tapered contour corresponding to the through-way, is disposed within the through-way and is capable of a locked position and an unlocked position. When in the locked position, the flap denies access to the through-way. When unlocked, the flap grants an animal access to the through-way. The flap is locked and unlocked by way of a locking mechanism that shifts the flap longitudinally between the less tapered and most tapered portions of the through-way. The locking mechanism shifts the flap in response to the receiver.Type: ApplicationFiled: January 9, 2008Publication date: August 7, 2008Applicant: Radio Systems CorporationInventors: James R. Bosserdet, Thomas P. Bjorholm, George M. Smart, Andrew S. Grimmett, Lane Whiteside