Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7766312 | Coil spring A coil spring reduces Hertzian stress on a first turn and bending stress on a coil end. A coil end 11 is shifted in a diametral outer or inner direction of a coil spring relative to the first turn 13, to form a vertical gap between the coil end ... | 08/03/2010 |
| 7527252 | Spring spacer for a spring A spring spacer is provided to improve the durability of a spring, which is made of Ti or the like and low in surface hardness, by preventing abrasion With the spring spacer placed between a first turn and a second turn of a Ti spring, the spring spacer prevents an ... | 05/05/2009 |
| 7357380 | Anti-vibration element In order to reduce the formation of inherent vibrations in the coil spring in an anti-vibration element, in particular for a manually operated tool such as a chainsaw, a parting-off grinder or similar device and having a coil spring, an additional mass is positioned... | 04/15/2008 |
| 7270320 | Antivibration element An antivibration element (1) is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring (2) and at least one guide. An end section (7, 8) of the coil s... | 09/18/2007 |
| 7249757 | Brush type small motor having non-linear spring device A spring device consists of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a liner spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance b... | 07/31/2007 |
| 7137636 | Vehicle suspension lift spacer The vehicle suspension lift spacer of the present invention fits between the coil spring and the upper spring receiver of the front suspension. It is made by welding stock flat and cylinder stock material, making it cheap to make and sufficiently rugged for the desi... | 11/21/2006 |
| 7080829 | Device for holding one end of a helical spring The invention relates to a device for holding one end of a helical spring and adjusting the tension of the spring. It comprises a plate (P1) provided with two series of holes (12, 13) spaced apart by a distance approximately equal to the diameter o... | 07/25/2006 |
| 7077390 | Suspension strut unit with a height-adjustable spring collar Spring strut comprising a cylinder, with respect to which the axial position of a spring collar can be adjusted, where the spring collar has a sleeve section, by which it is connected to the cylinder, where, on the cylinder side, a chamber is provided, which is at l... | 07/18/2006 |
| 7025343 | Adjusting method and adjusting mechanism for remedying the coil pitch tolerance and fatigue deformation of adjustable helical spring In an adjusting method for remedying the coil pitch tolerance and fatigue deformation of an adjustable helical spring, an adjusting mechanism is mounted at one end of the casing for the adjustable helical spring for changing the precompression or the pretension of t... | 04/11/2006 |
| 7008195 | Compressor spring locator A spring locating body (36) is a substantially annular shape formed with an annular recess (38) and a radially inner circular hole (40) that extends through the spring locating body (36). The spring locating body (36) is a substant... | 03/07/2006 |
| 6883651 | Dust cover receiving structure of hydraulic shock absorber A dust cover receiving structure of a hydraulic shock absorber in which a seat rubber is interposed between a suspension spring and a spring seat. The seat rubber has a spring receiving portion which is arranged between the suspension spring and the spring seat, a c... | 04/26/2005 |
| 6773000 | Vibration isolation spring mount A vibration isolation spring mount is disclosed. A compression coil spring is inserted between an inner sleeve and an outer sleeve and a pair of pads are disposed on the inner sleeve and the outer sleeve. Outwardly extending blades disposed on the open end of the in... | 08/10/2004 |
| 6767010 | Suspension strut with vertically adjustable spring perch Suspension strut comprising a cylinder and a spring perch which is axially displaceable relative to the cylinder for adjustment of the position, wherein the spring perch has a sleeve portion by which the connection to the cylinder is carried out. A chamber is arrang... | 07/27/2004 |
| 6726191 | Spring sheet A lower spring sheet has receiving portions on a sheet surface that supports a coil spring. Thus the sheet surface and a spring end portion of the coil spring come into contact discretely. The contact positions between the coil spring and the sheet surface maintain ... | 04/27/2004 |
| 6616131 | Helical compression spring for a vehicle suspension The present invention is directed to a helical compression spring for a vehicle suspension to be compressed between an upper seat and a lower seat. The spring is formed to provide an end coil center line connecting the centers of an upper end coil and a l... | 09/09/2003 |
| 6550755 | Arrangement with a helical spring and a support bearing for spring struts A coil spring (1) and support bearing (2) arrangement for suspension struts (3) with a shock absorber, supporting a steering knuckle of an automobile has a rolling-contact bearing (7), with an axis (x); a receiving body (6), arranged below the rolling-con... | 04/22/2003 |
| 6398201 | Vehicle shock absorber pad having a spring containment flange The restoring coil spring of a vehicle shock absorber can be seated on an annular elastomeric pad that is equipped with a reinforced peripheral flange adapted to maintain the lowermost convolution of the spring on the elastomeric pad should the spring bre... | 06/04/2002 |
| 6382648 | Spring-plate support with noise reduction The invention relates to spring strut with a flexible pad between a coil spring and a spring-plate which is firmly connected to a cylindrical container of an oscillation damper. The flexible pad, which is used, in particular, for noise damping, is formed ... | 05/07/2002 |
| 6193225 | Non-linear non-circular coiled spring A non-linear non-circular coiled spring comprises a first coil portion of rectangular cross-section having a lateral length "a" and a longitudinal length "b", a second coil portion of rectangular in cross-section having a lateral length "b" and a longitud... | 02/27/2001 |
| 6155544 | Vehicle shock absorber and strut damper spring seat pad having a discontinuous spring seat surface The coil spring of a vehicle shock absorber can be seated on an elastomeric sound isolator pad whose spring engagement surface has plural slot-like depressions evenly spaced around the pad circumference. These slot-like depressions form raised ribs that p... | 12/05/2000 |
| 6109599 | Flexible connector A flexible connector which is a combination of a coil spring and an elastomeric sleeve is disclosed. This combination allows for greater strength and resistance to exceeding the strain limit of the coil spring.... | 08/29/2000 |
| 5984283 | Vibration-damping rubber in suspension of vehicle A vibration-damping rubber for a suspension of a vehicle is composed of a resilient rubber body adapted to be interposed between a plurality of members of the suspension. The resilient rubber body has a slide surface adapted to contact one of the pluralit... | 11/16/1999 |
| 5906362 | Coil spring assembly and damper mechanism To avoid an increase of the number of steps for assembling a coil spring and seat members and a reduction in mechanical strength of the coil spring or the like, a coil spring assembly 20 is provided with the coil spring 25 and the seat members 26. Each se... | 05/25/1999 |
| 5676355 | Suspension system A suspension system includes a shock absorber, a coil spring, a tubular dust cover, and an insulator. The shock absorber is provided with a first seat and a second seat at the opposite ends. The insulator is disposed between the first seat and the coil sp... | 10/14/1997 |
| 5482258 | Shock mitigating tether system A shock mitigating tether system includes a helical coil spring mounted within a tubular housing between opposing retention plates. A first cable is folded in half and journaled through the longitudinal axis of the spring such that a loop end projects fro... | 01/09/1996 |
| 5470049 | Bearing for a spring strut of a motor vehicle A bearing assembly is disclosed for supporting a coil spring, for example for an automobile suspension system. The bearing assembly includes an elastic support having a sloped spring supporting surface corresponding to the pitch of the spring. At the side... | 11/28/1995 |
| 5454150 | Manufacturing methods for machining spring ends parallel at loaded length A first end surface of a coiled compression spring at its relaxed length is machined to a plane transverse to the spring axis. The spring is then placed in a press structure having first and second opposed planar support surfaces, with the machined spring... | 10/03/1995 |
| 5390903 | Variable force die spring assembly A variable force die spring is disclosed which combines high force, short axial compression distance spring assembly, such as belleville springs, and low force, high axial compression distance springs, such as coil springs, in a telescoping casing having ... | 02/21/1995 |
| 5366047 | Disc brake with ring-shaped pressing element In disc brakes, disturbing noises, such as whistling or squealing, occurring during braking operations can be prevented if the brake shoe, to be pressed against a brake disc by a pressure member, for example a hydraulically actuated piston, is taken along... | 11/22/1994 |
| 5285856 | Mechanical suspension device for piler of sugar cane loaders A sugar cane piler having a mechanical spring suspension device connected between the piler and the front end of the loader, the device including a precompressed spring to absorb a major portion of the weight of the piler and reduce the force of the piler... | 02/15/1994 |
| 5249781 | Support for a coil spring A support for a coil spring of a spring strut of a motor vehicle, which is cardanically disposed on the vehicle body, comprises a coil spring which, on one side, on the side of the vehicle body, is supported on an upper first elastic spring pocket and, on... | 10/05/1993 |
| 5246215 | Spring seat member with notch for ground spring end A spring system for applying an elastic restoring force to a moveable member undergoing a reciprocating movement. This spring system includes a coil spring made of steel and having a moveable end engaged to a moveable member and a fixed end engaged to a f... | 09/21/1993 |
| 5232207 | Spring connector accumulator A spring connector accumulator includes a helical compression spring, and a pair of connector body members that extend in opposite directions through the spring for maintaining the same in a predetermined preloaded partially compressed condition. The body... | 08/03/1993 |
| 5092568 | Coil spring device A coil spring device comprises a coil spring formed of a spiral wire having a first end and a second end, a first end support mechanism supporting the first end of the wire, and a second end support mechanism supporting the second end of the wire. The pai... | 03/03/1992 |
| 5088705 | Bicycle shock-absorbing apparatus A bicycle shock-absorbing apparatus comprises an inner tube and an outer tube. The inner tube is inserted into the outer tube. An upper spring socket and a lower spring socket are disposed in the inner tube and the outer tube separately. A compression spr... | 02/18/1992 |
| 5080446 | Hydraulic pressure control device A hydraulic pressure control device of a load sensing type is provided. The hydraulic pressure control device includes a spring support disposed on a vehicle body side or wheel side for supporting a suspension spring, a support member tiltably disposed in... | 01/14/1992 |
| 4993376 | Spring system A spring system for applying a restoring force to a reciprocating member such as an exhaust or intake valve of an internal combustion engine, comprising: a helical spring having open ends and consisting of titanium or an alloy thereof; and a spring seat s... | 02/19/1991 |
| 4962834 | Threaded removable end mount system for shock absorbers An interchangeable end mount system for stabilizer shock absorbers. Two types of end mounts are described, an eye ring end mount and a stud end mount. In one preferred embodiment, the eye ring end mount includes an eye ring, a threaded sleeve with a shoul... | 10/16/1990 |
| 4953591 | Hydraulic accumulator A hydraulic accumulator for vehicle transmission includes a valve body incorporated into the transmission casing, a piston disposed in a space provided in the valve body and dividing the space into first and second pressure chambers and a cylindrical slee... | 09/04/1990 |
| 4905574 | Single-acting rotary pneumatic actuator, including at least a precompressed spring assembly The rotary actuator includes at least a precompressed spring assembly comprising a compression coil spring the ends of which are engaged by flanged cups adapted to limit the spring extension and carried slidably on a pin provided, at each end, with a circ... | 03/06/1990 |
