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Class 267/291 - Having guide rods extending through coils


Subclass of Class 267 - Spring devices
Definition: Spring device wherein each of two coil-spring elements have
No. of patents: 24
Last issue date: 09/06/2011


NumberTitleIssue Date
8011645Two stage hood lift spring assembly
A lift spring assembly has a compression spring rod with a housing having a longitudinal axis and axially opposite ends, and having a rod member coaxial with the axis and having an inner end in the housing and an outer end axially outwardly of one of the opposite en...
09/06/2011
7467787Compression spring rod
A compression spring rod for relatively displacing elements attached to end mounts of the rod assembly comprises a housing having a rod member moveable between extended and retracted positions relative thereto, and a first compression spring in the housing surrounde...
12/23/2008
7350774Long travel, high force combination spring
A long travel, varying spring rate combination spring includes two differing rate springs connected end-to-end in such a way that the lower rate spring is compressed until positive engagement of a plunger with an intermediate flange member occurs with the higher rat...
04/01/2008
7335084Traveling toy and suspension of traveling toy
A traveling toy having a plurality of steering front wheels and a plurality of rear wheels being connected with a driver, and a suspension of traveling toy in which a trailing arm having one end part supported rotatably at the upper part of a supporting wall standin...
02/26/2008
7261286Two stage hood lift spring assembly
A lift spring assembly has a compression spring rod with a housing having a longitudinal axis and axially opposite ends, and having a rod member coaxial with the axis and having an inner end in the housing and an outer end axially outwardly of one of the opposite en...
08/28/2007
7229140Pre-tensioned spring track tensioning system
A pretensioned spring track tensioning system provides a two stage loading of a tension roller on the interior of a vehicle drive track. The two stage loading first loads the track under a lower tension load for normal operation, but when the track is highly loaded,...
06/12/2007
7066455Self-centering mechanical strut
A self-centering mechanical strut has first and second housing members. The second housing member telescopically receives the first housing member. Spring assemblies are mounted within each of the housing members. The spring assembly in the first tube is compressed ...
06/27/2006
6691991Shock absorber
A shock absorber comprising: a cylinder body has a piston rod movably received therein, a shock absorbing spring is mounted to the cylinder body and biased between the piston rod and the cylinder body, a buffering spring is mounted to an end of the piston...
02/17/2004
6669178Air damper used in glove box of automobile
An air damper suitably used in the glove box of an automobile comprises a cylinder having a first open end and a second end, a guide cap covering the first open end, and a piston moveable in the cylinder. A compression coil spring is inserted into the cyl...
12/30/2003
6564667Device for compensating the weight of a robot arm
A device for compensating the weight of a robot arm of a robot with a spring cylinder and having at least one helical spring is characterized in that there is at least one mechanism for the insertion and removal of at least one further, replaceable helica...
05/20/2003
6220583Air damper with hook on piston
An air damper of the present invention is provided with a cylinder whose one end is closed and other end is open; a piston which is movable along an axial direction of the cylinder within the cylinder in a state where an end of a string is connected to th...
04/24/2001
6120014Twist-correcting device for wire rope isolator
A twist-correcting device for a wire rope isolator, the retaining bars of which may become twisted in the process of installing the conventional wire rope isolator between a platform and an apparatus, which makes it difficult to assemble the wire rope iso...
09/19/2000
5906361Conical disc spring column
The conical disc spring column has a central shaft with retention shields at both ends thereof and with aligned superposed conical discs positioned about the shaft, the shaft being formed of two coaxial telescopic sections having a sliding connection ther...
05/25/1999
5823518Spring guide retainer
A spring guide retainer is provided for preventing buckling of a spring during spring compression as an upper die moves toward a lower die in a stamping operation. The spring guide retainer comprises a spring guide housing to hold the spring location, a s...
10/20/1998
5813202Impact absorbing mower deck mounting mechanism
A mechanism for absorbing impacts encountered by a mower deck coupled with a vehicle, including an arm operatively coupled with the vehicle, a longitudinally extending first tube member coupled with the arm and defining a generally linear axis which exten...
09/29/1998
5351947Sheet sorting apparatus
The vertical stack of trays in a movable tray sorter for sheets of paper exiting a copies is moved in a manner to enlarge the spacing between consecutive pairs of the trays to accept consecutive sheets of paper by moving the trays along a pair of helical ...
10/04/1994
5213301Suspension system for isolating vibrations
A suspension system for isolating a platform from external vibrations includes spring assemblies suspending the platform. In each spring assembly an elongated outer coil spring is suspended at an upper end thereof from a support structure. A tube is dispo...
05/25/1993
5209138Handlebar assembly for cycles
A handlebar including a shank, a ring formed integral in the shank, a number of teeth formed in the ring, a rod slidably engaged in the ring, a number of teeth formed on the rod for engagement with the teeth of the ring so as to prevent the rod from rotat...
05/11/1993
5118127Hitch device for interconnecting mobile apparatus in tandem
The invention is a hitch device for interconnecting two mobile apparatus, such as a hospital gurney and an IV stand. The hitch device comprises a body having first and second ends, each end having a coupling for attachment to a mobile apparatus, and a mon...
06/02/1992
5056764Shock absorber for use in toys
A shock absorber for use in toys comprising a rod for supporting a wheel, a retainer slidably along the rod, and a spring interposed between the lower section of the rod and the retainer which forces the retainer upwardly. These members can be pre-assembl...
10/15/1991
4991675Hood tilt mechanism
A hood tilt control mechanism includes a hood support brakcet having one hinge leaf attached to the chassis including a longitudinally extending slot for slidably receiving one end of a telescoping hood tilt assist mechanism and a second hinge leaf attach...
02/12/1991
4923182Spring energized air guns
An anti-vibration damping device for the main spring of a piston air gun comprises an insert body extending longitudinally within the spring coils and a locating portion at one end on which an end of the spring seats, the insert body including resilient l...
05/08/1990
4781359Sub assembly for a swivel
A sub assembly for connecting a power swivel to a drill string. The assembly includes a telescopic sub having a preloaded spring. The telescopic sub has three discrete positions enabling it to travel in either direction from a normal position. This capabi...
11/01/1988
4118020Spring assembly and method of assembly thereof
A spring assembly and a method of assembly therefor are provided wherein one or more longitudinal coil springs are retained between two end caps. Each end cap receives a hollow pin, each pin extending axially inwardly therefrom and abutting the other pin....
10/03/1978
 
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