# US 7,722,097 B2 · Surface mounted electric rim strikes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,722,097 B2 - Document ID: US7722097B2 - Status: Granted - Kind: B2 - Application number: 11/353,074 - Filed: 2006-02-14 - Published: 2006-08-31 - Granted: 2010-05-25 - Earliest claimed: 2005-02-15 - Assignees: Rutherford Controls International Corp. - Inventors: Robert P. Schnarr; John S. Rutherford - Web page: https://patentgrep.com/patent/US7722097B2 ## CPC - E05B 47/0047: {Striker rotating about an axis parallel to the wing edge} - E05B 15/0205: {Striking-plates, keepers, staples (means for reducing friction E05B17/007; electric strikers E05B47/0046; staples for padlocks E05B67/383; strikers for espagnolettes E05C9/1808)} - E05B 2047/0074: {holding means other than current (mechanical, magnetic)} - E05B 2047/0077: {holding means other than current} - Y10T 292/1082: Motor - Y10T 292/699: Motor controlled - Y10T 292/705: Adjustable - E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An electric rim strike including a housing having a cavity defined therein; a pivotally rotatable keeper having a front blocking face; a pivotally rotatable locking bar having a rear blocking face; and an actuating mechanism that selectively pivots the locking bar. The keeper, locking bar, and actuating mechanism are disposed within the cavity of the housing. The actuating mechanism being operationally connected to the locking bar and driving the locking bar and the keeper from a first state to a second state. The rear blocking face of the locking bar opposes the front blocking face of the keeper to prevent the locking bar and keeper from freely rotating relative to each other. ## Claims ### Claim 1 An electric rim strike surface mountable on a door frame, comprising: a pivotally-rotatable keeper, including: a first member having two ends, each end including a front inclined blocking face, and a second member extending orthogonally from the first member; a pivotally-rotatable locking bar including two extension arms, each extension arm having a rear inclined blocking face to engage a respective front blocking face of the keeper; a thrust mechanism; and an anchor including a spacer, wherein, when the thrust mechanism is de-energized, the anchor engages the locking bar to prevent the locking bar from rotating, and the rear blocking faces engage the respective front blocking faces to prevent the keeper from rotating, and when the thrust mechanism is energized, the anchor is driven towards the thrust mechanism, the spacer maintains an air gap between the anchor and the thrust mechanism, the anchor disengages from the locking bar to allow the locking bar to rotate, and the rear blocking faces disengage from the respective front blocking faces to allow the keeper to rotate. ### Claim 2 (depends on 1) The rim strike according to claim 1, wherein the locking bar includes a member disposed between the two extension arms and at least one shelf to engage the anchor. ### Claim 3 (depends on 1) The rim strike according to claim 1, wherein the locking bar pivots about a first pivoting mechanism and the keeper pivots about a second pivoting mechanism. ### Claim 4 (depends on 3) The rim strike according to claim 3, wherein the first and the second pivoting mechanisms are an axial shaft or a pin. ### Claim 5 (depends on 1) The rim strike according to claim 1, wherein the locking bar includes a member, disposed between the two extension arms, having a front face, wherein the rear blocking faces are obliquely disposed relative to the front face. ### Claim 6 (depends on 1) The rim strike according to claim 1, further comprising: a first biasing member urging the anchor to a respective predetermined state; and a second biasing member urging the keeper to a respective predetermined state. ### Claim 7 (depends on 6) The rim strike according to claim 6, wherein the first and second biasing members are springs. ### Claim 8 (depends on 1) The rim strike according to claim 1, wherein the thrust mechanism is a solenoid. ### Claim 9 An electric rim strike surface mountable on a door frame, comprising: a housing having a cavity defined therein; a pivotally-rotatable keeper, including: a first member having two ends, each end including a front inclined blocking face, and a second member extending orthogonally from the first member; a pivotally-rotatable locking bar including two extension arms and a member disposed therebetween, each extension arm having a rear inclined blocking face; and two solenoids; and two anchors, each including a spacer, wherein, when the solenoids are de-energized, each anchor engages the locking bar to prevent the locking bar from rotating, and each locking bar blocking face engages a respective keeper blocking face to prevent the keeper from rotating, and when the solenoids are energized, each anchor is driven towards a respective solenoid, each spacer maintains an air gap between the anchor and the respective solenoid, each anchor disengages from the locking bar to allow the locking bar to rotate, and each locking bar blocking face disengages from the respective keeper blocking face to allow the keeper to rotate. ### Claim 10 (depends on 9) The rim strike according to claim 9, wherein the locking bar member includes two shelves to respectively engage the anchors. ### Claim 11 (depends on 9) The rim strike according to claim 9, wherein the keeper, the locking bar, and the solenoids are disposed within the cavity of the housing. ### Claim 12 (depends on 9) The rim strike according to claim 9, wherein the solenoids have an energized state and a non-energized state. ### Claim 13 (depends on 9) The rim strike according to claim 9, wherein the locking bar pivots about a first pivoting mechanism connected to the housing, and the keeper pivots about a second pivoting mechanism connected to the housing. ### Claim 14 (depends on 13) The rim strike according to claim 13, wherein the first and second pivoting mechanisms are one of an axial shaft and a pin. ### Claim 15 (depends on 1) The rim strike according to claim 1, wherein the anchor is pivotally-rotatable. ### Claim 16 (depends on 1) The rim strike according to claim 1, wherein each end of the keeper includes a front face connected to the font inclined blocking face. ### Claim 17 (depends on 8) The rim strike according to claim 8, wherein the spacer is manufactured from a non-magnetic material. ### Claim 18 (depends on 9) The rim strike according to claim 9, wherein each end of the keeper includes a front face connected to the front inclined blocking face. ### Claim 19 (depends on 9) The rim strike according to claim 9, wherein the spacers are manufactured from a non-magnetic material. ### Claim 20 An electric rim strike surface mountable on a door frame, comprising: a pivotally-rotatable keeper, including: a first member having two ends, each end including a front inclined blocking face, and a second member extending orthogonally from the first member; a pivotally-rotatable locking bar including two extension arms, each extension arm having a rear inclined blocking face to engage a respective front blocking face of the keeper; a thrust mechanism; and an anchor including a spacer, wherein, when the thrust mechanism is de-energized, the spacer maintains an air gap between the anchor and the thrust mechanism, the anchor disengages from the locking bar to allow the locking bar to rotate, and the rear blocking faces disengage from the respective front blocking faces to allow the keeper to rotate, and when the thrust mechanism is energized, the anchor is driven away from the thrust mechanism, the anchor engages the locking bar to prevent the locking bar from rotating, and the rear blocking faces engage the respective front blocking faces to prevent the keeper from rotating. ### Claim 21 An electric rim strike surface mountable on a door frame, comprising: a housing having a cavity defined therein; a pivotally-rotatable keeper, including: a first member having two ends, each end including a front inclined blocking face, and a second member extending orthogonally from the first member; a pivotally-rotatable locking bar including two extension arms and a member disposed therebetween, each extension arm having a rear inclined blocking face; and two solenoids; and two anchors, each anchor including a spacer, wherein, when the solenoids are de-energized, each spacer maintains an air gap between the anchor and the respective solenoid, each anchor disengages from the locking bar to allow the locking bar to rotate, and each locking bar blocking face disengages from the respective keeper blocking face to allow the keeper to rotate, and when the solenoids are energized, each anchor is driven away from a respective solenoid, each anchor engages the locking bar to prevent the locking bar from rotating, and each locking bar blocking face engages a respective keeper blocking face to prevent the keeper from rotating.