# US 2019/0170290 A1 · Fastening system and air handling unit comprising such a fastening system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170290 A1 - Document ID: US20190170290A1 - Status: Published application - Kind: A1 - Application number: 16/324,752 - Filed: 2016-08-12 - Published: 2019-06-06 - Earliest claimed: 2016-08-12 - Assignees: Carrier Corporation - Applicants: Carrier Corporation - Inventors: Thomas Carton; Yoann Dardel - Web page: https://patentgrep.com/patent/US20190170290A1 ## CPC - F16M 7/00: Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks (elastic or equivalent mounting for absorbing vibrations F16F, especially F16F15/04) - F16F 1/12: Attachments or mountings {(F16F1/041, F16F13/02 take precedence; of combinations of vibration damper and mechanical spring for vehicle suspension units B60G15/02)} - F16F 1/122: {where coils, e.g. end coils, of the spring are rigidly clamped or similarly fixed} - F16F 15/067: using only wound springs - F16M 1/00: Frames or casings of engines, machines or apparatus; Frames serving as machinery beds - F24F 1/38: Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings - F24F 1/40: Vibration or noise prevention at outdoor units (for outdoor units compressors F24F1/12) - F24F 13/32: Supports for air-conditioning, air-humidification or ventilation units - F16B 5/0241: {with the possibility for the connection to absorb deformation, e.g. thermal or vibrational} - F16B 5/0266: {using springs} - F16M: FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) ## Abstract This invention concerns a fastening system (6) for fastening an air blower, comprising a first part (60) to be fastened to a panel (4) and a second part (62) to be fastened to a frame (20) of an air blower, and an elastic decoupling element (64), formed by a helical spring, linking the first and second parts (60, 62), wherein the first and second parts (60, 62) are cup-shaped and have peripheral edges extending towards each other, the elastic decoupling element (64) comprises two terminal spires (640, 642) which are respectively inserted in the first and second cup-shaped parts (60, 62) and the fastening system (6) comprises plates inserted between the terminal spires (640, 642) and the central spires of the helical spring (64) and fastened to the first and second cup-shaped parts (60, 62). ## Claims ### Claim 1 Fastening system (6) for fastening an air blower (2), comprising a first part (60) to be fastened to a panel (4) and a second part (62) to be fastened to a frame (20) of an air blower (2), and an elastic decoupling element (64), formed by a helical spring, linking the first and second parts (60, 62), wherein: the first and second parts (60, 62) are cup-shaped and have peripheral edges (600, 620) extending towards each other; the elastic decoupling element (64) comprises two terminal spires (640, 642) which are respectively inserted in the first and second cup-shaped parts (60, 62); the fastening system (6) comprises plates (66, 68) inserted between the terminal spires (640, 642) and the central spires (644) of the helical spring (64) and fastened to the first and second cup-shaped parts (60, 62). ### Claim 2 (depends on 1) Fastening system according to claim 1, wherein the plates (66, 68) have a circular shape adapted to insert in the first and second cup-shaped parts (60, 62), and radially protruding tongues (660, 680) adapted to insert in corresponding notches (602, 622) of the peripheral edges (600, 620) of the first and second cup-shaped parts (60, 62). ### Claim 3 (depends on 1) Fastening system according to claim 1, wherein the first and second cup-shaped parts (60, 62) comprise bulging shapes (604, 624) for centering the terminal spires (640, 642) around a central axis (X6) of the fastening system (6). ### Claim 4 (depends on 1) Fastening system according to claim 1, wherein the plates (66, 68) are fastened to the cup-shaped parts (60, 62) by riveted screws (70, 72) which respectively fasten the first and second cup-shaped parts (60, 62) to the panel (4) and to the air blower (2). ### Claim 5 (depends on 4) Fastening system according to claim 4, wherein each screw (70, 72) has an elongated body (700, 702) that is inserted through concentric holes (662, 682, 608, 628, 40, 20a) respectively provided in a plate (66, 68), a cup-shaped part (60, 62) and the panel (4) or the frame (20) of the air blower (2). ### Claim 6 (depends on 5) Fastening system according to claim 5, wherein each screw (70, 72) comprises a head (702, 722), a deformable portion (704, 724) that surrounds the elongated body (700, 720) and a radial collar (706, 724), the cup-shaped portion (60, 62) and the plate (66, 68) being secured together between the collar (706, 726) and the deformable portion (704, 724) by riveting. ### Claim 7 (depends on 5) Fastening system according to claim 5, wherein the elongated body (700, 720) comprising a threaded portion (700A, 720A) which protrudes from the opposite side of the cup-shaped part (60, 62) with respect to the helical spring (64). ### Claim 8 (depends on 7) Fastening system according to claim 7, wherein the frame (20) of the air blower (2) is adapted to be fastened to the second cup-shaped part (62) by screwing a nut (9) on an upwardly protruding threaded portion (720A). ### Claim 9 (depends on 1) Air handling unit comprising an enclosure formed by panels (4) and at least one air blower (2), wherein the air blower (2) is fastened to a panel (4) of the enclosure by fastening systems (6) according to claim 1.