# US 2014/0360293 A1 · Vacuum stable mechanism drive arm > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0360293 A1 - Document ID: US20140360293A1 - Status: Published application - Kind: A1 - Application number: 14/088,176 - Filed: 2013-11-22 - Published: 2014-12-11 - Earliest claimed: 2013-06-11 - Assignees: Raytheon Company - Applicants: Raytheon Company - Inventors: Eric J. Griffin; Michael L. Brest; Wallace H. Sunada - Web page: https://patentgrep.com/patent/US20140360293A1 ## CPC - G01J 5/06: Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity (for adjusting of solid angle of collected radiation G01J5/07; means for wavelength selection G01J5/0801) - F01L 9/20: by electric means - F16H 21/18: Crank gearings; Eccentric gearings - G01J 5/0804: Shutters - G01J 5/0805: Means for chopping radiation - G03B 9/08: Shutters - G05B 6/02: electric - H01F 7/1844: {Monitoring or fail-safe circuits (for relays H01H47/002)} - H02P 7/2913: {whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value} - Y10T 74/18248: Crank and slide - G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N) - F01L: CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES - F16H: GEARING - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A drive mechanism including a rotary actuated motor configured to rotatably drive a drive arm between a first position to a second position and an actuator responsive to movement of the arm, wherein the actuator is thermally isolated from the arm in both the first position and the second position to create a thermal barrier. The drive arm is configured to engage and advance the actuator between the first position and the second position, while remaining physically spaced from the actuator in the first position and the second position. The drive arm includes a recess such as an opening, wherein the actuator has a member configured to reside in the recess and remain thermally isolated from the arm in both the first position and the second position. In one preferred embodiment, a shutter of an imaging device is positioned in response to the actuator, which shutter remains thermally isolated from the motor and arm. Other devices may be driven as well, such as switches. ## Claims ### Claim 1 A device, comprising: a rotary actuated motor configured to rotatably drive a motor member; a drive arm coupled to the motor member and configured to responsively move from a first position to a second position upon rotation of the motor member, the drive arm having a first portion coupled to the motor member and a second portion; and an actuator responsive to movement of the drive arm moved from the first position to the second position, wherein the actuator is thermally isolated from the drive arm in both the first position and the second position. ### Claim 2 (depends on 1) The device as specified in claim 1 wherein the drive arm second portion is configured to engage and advance the actuator between the first position and the second position and impart movement of the actuator, and remain physically spaced from the actuator in the first position and the second position. ### Claim 3 (depends on 2) The device as specified in claim 2 wherein the drive arm second portion comprises a recess, wherein the actuator has a member configured to reside in the recess and remain thermally isolated from the drive arm in both the first position and the second position. ### Claim 4 (depends on 3) The device as specified in claim 3 wherein the actuator member comprises a pin. ### Claim 5 (depends on 3) The device as specified in claim 3 wherein the drive arm imparts a linear movement of the actuator when the drive arm is moved from the first position to the second position. ### Claim 6 (depends on 3) The device as specified in claim 3 wherein the drive arm is configured to rotate from the first position to the second position. ### Claim 7 (depends on 3) The device as specified in claim 3 wherein the recess comprises an opening. ### Claim 8 (depends on 7) The device as specified in claim 7 wherein the opening is elongated. ### Claim 9 (depends on 1) The device as specified in claim 1 further comprises at least one limit member configured to establish the first position and the second position. ### Claim 10 (depends on 9) The device as specified in claim 9 further comprising an adjustment member coupled to the at least one limit member and configured to selectively establish a length of a travel path of the drive arm between the first position and the second position. ### Claim 11 (depends on 1) The device as specified in claim 1 wherein the drive arm is balanced about the motor member. ### Claim 12 (depends on 1) The device as specified in claim 1 further comprises a securing mechanism configured to secure the drive arm in both the first position and the second position. ### Claim 13 (depends on 12) The device as specified in claim 12 wherein the securing mechanism comprises at least one magnet. ### Claim 14 (depends on 12) The device as specified in claim 12 further comprising a pair of Hall Effect sensors configured to sense the drive arm position. ### Claim 15 (depends on 1) The device as specified in claim 1 further comprising a shutter responsively coupled to the actuator, the shutter configured to have a first position when the drive arm is in the first position and a second position when the drive arm is in the second position, wherein the shutter is thermally isolated from the drive arm. ### Claim 16 A device, comprising; a rotary actuated motor configured to rotatably drive a motor member; a drive arm coupled to the motor member and configured to responsively move from a first position to a second position upon rotation of the motor member, the drive arm having a first portion coupled to the motor member and a second portion; an actuator responsive to movement of the drive arm moved from the first position to the second position, wherein the actuator is thermally isolated from the drive arm in both the first position and the second position; and a shutter responsively coupled to the actuator, the shutter configured to have a first position when the drive arm is in the first position and a second position when the drive arm is in the second position, wherein the shutter is thermally isolated from the drive arm. ### Claim 17 (depends on 1) The device as specified in claim 1 wherein the drive arm second portion is configured to engage the actuator between the first position and the second position and impart movement of the actuator, and remain physically spaced from the actuator in the first position and the second position. ### Claim 18 (depends on 17) The device as specified in claim 17 wherein the drive arm second portion comprises a recess, wherein the actuator has a member configured to reside in the recess and remain thermally isolated from the drive arm in both the first position and the second position. ### Claim 19 (depends on 16) The device as specified in claim 16 wherein the drive arm is configured to rotate from the first position to the second position. ### Claim 20 (depends on 16) The device as specified in claim 16 further comprising a limit member configured to establish the first position and the second position, and a securing mechanism configured to secure the drive arm in both the first position and the second position.