Matches 1 - 50 out of 135 1 2 3 >
Match Document Document Title
7464437 Door closer  
The apparatus for closing the door slowly and automatically can directly get the door closed by the piston rod without passing through a gear, so that the energy loss is little, and a small amount...
7455154 Shock absorber  
A shock absorber with a shock absorber body having a cylinder. A piston is moveably guided in a receiving space of the cylinder. When the piston is moved, an air pressure generated in the receiving...
7367086 String type air damper  
A string type air damper includes a cylinder formed in a tubular shape, defining a guide hole at one end portion thereof, a piston, which moves in the cylinder, a helical spring for biasing the...
7216400 Door hold and release mechanism  
A door hold and release mechanism is provided including a housing mounted onto the pneumatic cylinder of a door check or closer having a piston rod extending from one end of the cylinder. The...
7213299 Method and apparatus for securing a door piston to a door jamb  
A door piston to door jamb interface ( 30 ) includes an elongated plate ( 32 ) having a number of threaded holes ( 34 ) therein and a bracket ( 50 ) including a base ( 52 ) and a transverse support...
7134168 Door closer with pre-set stops  
A door closer comprises a cylinder with an extensible and retractable rod. The cylinder has a first end adapted to be secured to a door frame, while the rod has an outer end adapted to be connected...
7118472 Control system for pneumatically-powered door installation  
A mine door installation has a frame installed in a mine passageway. At least one door leaf is mounted on the frame for swinging movement between open and closed positions. Movement of the door...
7111359 Rod gripper  
A bar or rod gripper for arresting the linear axial movement of a rod, e.g. the piston rod of a door closure between a door open or closed position, that includes a compressible bushing slidably...
7016862 Method for enhancing security and providing assistance in the operation of a self-service checkout terminal  
A method of providing security during operation of a self-service checkout terminal includes the step of creating a transaction table which includes a plurality of records corresponding...
6976289 Door closer with door arresting mechanism  
A door closer having a door arresting mechanism to arrest a door in an opened position that includes a cylinder and piston assembly wherein the arresting mechanism includes a cam member having an...
6976288 Rod gripper  
A bar or rod gripper for arresting the linear axial movement of a rod, e.g. the piston rod of a door closure between a door open or closed position, that includes a compressible bushing slidably...
6964411 Column unit  
A column unit includes a fixed upright tube with a bottom upright-tube end and a top upright-tube end and a telescopic tube axially displaceably guided in the upright tube. A cylinder of a...
6957807 Damping device  
The invention concerns a damping device for damping the kinetic energy of movable cabinet components, which has a first damping element with a first cylinder that has a first piston, which slides...
6938372 Pneumatically-powered mine door installation with hydraulic checking system  
A mine door assembly has a frame. At least one door leaf is mounted on the frame for swinging movement between open and closed positions. Movement of the door leaf is powered by a pneumatic...
6934996 System for actuating a gas damper  
A gas-filled cylinder, with two concentric cylindrical bodies or tubes that determine an intermediate gas passage chamber and are separated by a shaft cap and a valve cap that allow the passage of...
6871381 Door closure with adjusting mechanism for controlling door closing speed  
A readily adjustable door closure for varying the rate of speed at which an associated door may close which is effected by rotating the piston rod relative to the piston and associated cylinder...
6748624 Hood support piston stopper  
A hood support piston stopper that is positionable in connection with the hood support piston assembly of a vehicle in a manner to prevent the piston rod of the hood support piston assembly from...
6658695 Door securing device  
A door securing device for securing screen door in an open position once it has been opened. The door securing device includes a housing comprising a perimeter wall. The perimeter wall defines an...
6640387 Damper assembly that opts to open doors for usage with reciprocating door closer devices  
An assembly ( 50 ) adapted to a reciprocative door closer device ( 10 ) and contingent door ( 62 ), the device ( 10 ) comprising a rod ( 16 ) and a body ( 12 ) having a biasing means ( 11 )...
6634059 Reinforcement hardware for a doorjamb bracket  
A reinforcement plate for use in attaching a doorjamb bracket to a doorjamb, the plate member having an aperture through which the arm of a conventional doorjamb bracket may be inserted. A...
6634058 Door closer with a reliable arresting effect  
A door closer comprises a cylinder and a piston rod mounted in the cylinder and having an exposed section outside the cylinder. A retainer plate, an elastic element, and an end cap are mounted...
6634057 Door holder assembly  
A control assembly for holding a pivoted door in an open position and releasable to enable the door to swing to a closed position. A rotor is connected to the door in a manner such that when the...
6615449 Releasable locking assembly for a door control cylinder  
A releasable locking assembly for a door control cylinder is disclosed. The assembly fits over the rod of the door control cylinder and includes a locking flange member maintained in a confined...
6578832 Air damper used in glove box of automobile  
An air damper comprises a cylinder having first and second openings at both ends, a piston that moves in the cylinder, a piston rod coupled to the piston and moving in and out at the first opening...
6497004 Delayed action door holder  
An apparatus for holding open a door or similar member for a predetermined time period includes a suction mechanism coupled to the door and the door frame. The suction mechanism includes an...
6460839 Air damper for a movably supported structural part, in particular in automobiles  
An air damper for a movably supported structural part in automobiles comprises a hollow cylinder closed at one end thereof, a closure cap mounted on the other end of the cylinder, a piston slidably...
6442796 Air damper  
An air damper consists of a tubular cylinder with opposite ends, a piston movable in the cylinder, a first coil spring for resiliently biasing the piston in the direction of one end of the...
6397431 Spring assembly normally inactive that opts for causing towards any position with reciprocative door closer devices  
An assembly ( 50 ) adapted to a reciprocative door closer device ( 10 ) and contingent door ( 62 ), the device ( 10 ) comprising a rod ( 16 ) and a body ( 12 ) having a biasing means ( 11 )...
6397430 Adjustable hydraulic backcheck door closer  
A hydraulic backcheck valve system for controlling an opening cycle of a door closer has a housing with an interior chamber, at least one cylinder, and a piston that can reciprocate between a door...
6298520 Door closer and mounting bracket  
A door closer and mounting bracket for attaching the door closer to either the door or the door frame. The door closer includes two pins at one end for engaging corresponding holes on the mounting...
6125505 Door closer and mounting bracket  
A door closer and mounting bracket for attaching the door closer to either the door or the door frame. The door closer includes a lip at one end for engaging a corresponding hook on the mounting...
6119832 Pneumatic movement damper  
6056087 Method and apparatus for providing security to a self-service checkout terminal  
A method of providing security to a self-service checkout terminal having a bagwell and a light curtain device that generates a light curtain which is positioned over the bagwell includes the step...
6032331 Checking mechanisms with variable plane trigger plates  
An improved mechanism (22) for checking reciprocating operative devices (10) to include door systems, by means of an improved rocker-washer mechanism (22) adapted to pivot (24) and frictionally...
5956806 Apparatus for automatically closing a swing door  
A door closer has a cylindrical body `A` installed in a swing door and a base plate `B` fixed to a wall `C` standing still and near the door. The body `A` has an oil-hydraulic third cylinder 3...
5953789 Checking mechanism for reciprocative devices  
A checking mechanism (22) to frictionally check reciprocative devices (10) comprising a rod (16) that functions within a body (12) controlling a biasing means (11); the mechanism (22) providing...
5946772 Cover for a door closure  
A cover device for a door closure mechanism includes a detachably mounted shell which has a generally C-shaped cross section and is formed by an elongated wall. The wall has an inside surface which...
5845360 Door closer hold-open clip  
A hold-open door clip can be disengaged with simple outward pressure on the door. A counterweight body section causes the clip to assume a position substantially perpendicular to the piston rod...
5832562 Door closer  
This invention is directed to a door closer which is rendered optionally operative to effect either a controlled closing of the door upon opening or to automatically latch or arrest the door in the...
5829098 Reinforcement basal attachment plate for reciprocating operative device  
An apparatus and method of providing improved attachment and securement for a reciprocating operative device stability control bracket (26) which comprises an arm structure (32) connected to a...
5829097 Hold open control for a door closer  
A blocking device for preventing a door closer from achieving a degree of rotation corresponding to a door hold-open position. A blocking device is provided which can be selectively protruded into...
5657969 Snap-in push-push latch mechanism  
A latch mechanism of the push-push type comprises a latching member and a latch track member which are adapted to be respectively snap-fittingly mounted upon a closure member and a closure housing...
5657511 Piston-tpye door closer with adjustable closing speeds  
An improved multi-stage door closer for automatically closing a door after the door is opened, is disclosed. It contains a cylinder having three sections each with a different diameter, with the...
5647578 Latch mechanism  
A latch mechanism is disclosed for use with an air damper assembly. The air damper assembly is used for controlling the dampening rate of an openable object and includes a piston head having a...
5630248 Door closer with semi-automatic latching  
A door closer employing a cylinder having an end attachable to a door or door frame and slidably retaining a piston biased by a spring to a maximum retracted position in the cylinder. One end of a...
5592780 Door position controlling apparatus  
An apparatus for controlling the position of a door suitable for use in association with door closing piston assemblies having a spring-biased reciprocable door closing piston rod and a latch plate...
5518223 Air damper assembly with piston seal and piston rod latch  
An air damper assembly for controlling the dampening rate of an openable object includes a piston head having a molded channel therein and a lip seal member disposed around the connecting member of...
5477589 Piston-type door closer with adjustable closing speeds  
A multi-stage door closer for automatically closing a door after the door is opened; it contains a cylinder having three sections each with a different diameter. The middle section has the largest...
5471708 Pneumatic door closer  
A pneumatic door closer has an elongated cylinder with a bore extending axially thereof and end walls, and a piston is slidably reciprocable within the bore. The piston is integrally fabricated of...
5456283 Infinite hydraulic check  
An infinite hydraulic check for use with a door that maintains the door in any position until an appropriate check effort is applied to release the door from the position. The check includes an...
Matches 1 - 50 out of 135 1 2 3 >