...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 |
| 8286762 | Drum brakes A drum brake backplate having a vibration damping mass secured thereto. One or more portions of the mass are secured to the backplate and the remainder of the mass is spaced from the backplate and defines one or more further portions which are tuned to vibrate relat... | 10/16/2012 |
| 7318503 | Pad retaining clips A brake caliper mounting clip is disposed between a brake caliper having a brake pad channel and a brake pad having an edge member. The edge member moves in the brake pad channel between a rotor gap and a caliper housing. The clip further comprises a pad holding por... | 01/15/2008 |
| 6920965 | Spot-type disc brake with a spring assembly for a brake pad The present invention relates to a spot-type disc brake with a brake housing straddling a brake disc, with at least one brake pad that is arranged in the brake housing so as to be slidable in the actuating direction and cooperates tribologically with the brake disc ... | 07/26/2005 |
| 6719105 | Pad retraction spring for disc brake assembly This invention relates to an improved pad retraction spring (30) adapted for use in a disc brake assembly. The disc brake assembly includes an anchor bracket (12) adapted to be secured to a vehicle component, a brake caliper (108) adapted to be ... | 04/13/2004 |
| 6634469 | Spot-type disc brake with a retaining device for a brake pad The present invention relates to a spot-type disc brake for automotive vehicles and an associated brake pad with a retaining device for the brake pad (1) on an actuating means (2), with the brake pad (1) being additionally clamped to a pad mounting suppor... | 10/21/2003 |
| 6499569 | Damped anchor shim for drum brake assembly This invention related to a multi-layered damped anchor shim adapted for use in a drum brake assembly. The anchor shim includes an inner surface and an outer surface which is adapted to contact the second ends of the brake shoes. The anchor shim includes ... | 12/31/2002 |
| 6467590 | Arrangement for preventing the squealing of a disk brake In order to prevent squealing of a disk brake, the disk brake has a brake disk with friction rings having locally weakening section moduli which detune corresponding to the natural oscillation mode. As a result, the natural oscillation mode of the brake d... | 10/22/2002 |
| 6397982 | Disc brake housing An annular disc brake assembly has a housing mounted to a vehicle and a rotor disk mounted to a wheel of the vehicle. A pair of annular brake shoes are in frictional engagement with the rotor disk during a brake action, and resiliently supported by the ho... | 06/04/2002 |
| 6374965 | Damped brake shoe support device for drum brake assembly An improved drum brake assembly having at least one damped brake shoe support device secured to an associated backing plate which is effective to reduce brake noise during actuation of the drum brake assembly. The drum brake assembly includes a backing pl... | 04/23/2002 |
| 6349803 | Shim structure for sound dampening brake squeal noise A silencer structure is mounted on a friction pad of a disc brake assembly by retaining pins which extend through the shim structure and into the backing plate for preventing dislodging of the shim structure in service. The force of the rotating action of... | 02/26/2002 |
| 6269915 | Pad clip for a disc brake A pad clip for a disc brake including at least one friction pad and a support member. The pad clip comprises a first U-shaped portion, a second U-shaped portion, and a third side portion. The first U-shaped portion includes a first base portion and first ... | 08/07/2001 |
| 6131708 | Drum brake device A shock absorber (13) is provided between the anchor (9) and the ends (2b, 3b) of the brake shoes (2, 3) facing the anchor (9) to reduce the impact noise between the brake shoe and the anchor.... | 10/17/2000 |
| 5979611 | Disc brake device A torque member has thread holes for attaching itself to a vehicle body and L-shaped rails for supporting inner and outer brake pads in the circumferential direction of a disc rotor, so as to allow the brake pads to be displaced in the axial direction of ... | 11/09/1999 |
| 5915505 | Disc brake system with unitary support A mounting assembly for a disc brake pad is disclosed. The disc brake pad has a first end portion provided with a finger engaged in a slot of a reaction block to partially restrain the disc brake pad. The disc brake pad has a substantially unrestrained se... | 06/29/1999 |
| 5901815 | Disk brake A disk brake includes a carrier secured to a fixed part of a vehicle, a rotor fixed to a vehicle wheel, a caliper slidably mounted to the carrier, a pair of inboard and outboard pad assemblies for operative braking coaction with the rotor, and a pair of p... | 05/11/1999 |
| 5896958 | Drum brake with divided brake support plate The drum brake has a brake support plate which is divided into a supporting body (10) and a back plate (22). The supporting body (10) has a central ring (12) for centering and securing to an axle housing of a vehicle, and an abutment carrier (16) against ... | 04/27/1999 |
| 5881848 | Disk brake using a pad which is urged to rotate A disk brake for a motor vehicle having a caliper (1), a carrier (2) which fixed to the vehicle and a pad (41) located between a tip (10) on the caliper (1) and a disk (D). The pad (41) being fitted with a spring (5) which holds the pad against the tip (1... | 03/16/1999 |
| 5699882 | Pad clip for disc brake A pad clip for use in a disc brake in which a concave and convex fitting structure is formed in a braking support portion between each of friction pads disposed opposite to a rotor, and a support member for bearing braking force from the friction pads. Th... | 12/23/1997 |
| 5609228 | Assembly of a friction member and of a spring for a disk-brake and disk-brake equipped with such an assembly This invention relates to a vehicle disk-brake and spring (40) through which a friction member (10) is attached to a torque-withstanding member (24). A support plate (12) is received via its circumferential ends (16, 18), which is anchored, and slides on ... | 03/11/1997 |
| 5564532 | Mounting member for disk brake An inner arm for receiving a brake torque applied to an inner pad when a car is running forwardly includes a reinforcing rib, in the portion thereof situated near the opposite side to the side where a torque receiving portion of the inner arm is located. ... | 10/15/1996 |
| 5547047 | Brake caliper shock and vibration isolation system A system includes rigid non-metal washers separating a caliper lever from the bridge, a rigid non-metal bridge bushing separating a shaft of a bridge pin from the bridge and a rigid non-metal lever bushing separating the bridge pin from the lever. The bri... | 08/20/1996 |
| 5535856 | Antivibration clip which biases friction pad and caliper in same direction A vehicle disc brake caliper assembly which includes an improved structure for supporting a caliper relative to an associated anchor plate. The disc brake caliper assembly includes an anchor plate including first and second spaced apart guide rails, and a... | 07/16/1996 |
| 5518088 | Shim structure for sound dampening brake squeal noise A shim structure for sound dampening brake squeal noise in a disc brake apparatus, when installed on the piston and/or caliper engaging surface of a steel backing plate of the friction pad structure, is composed of a sheet of aluminum and a continuous mem... | 05/21/1996 |
| 5472067 | Supporting device for disk brake friction pads A novel supporting device for the friction pads of a disk brake is provided in which a frame straddling a disk rotating in tandem with the wheel is fixed to a non-rotating member of the vehicle, and a caliper slidable in the axial direction of the rotatin... | 12/05/1995 |
| 5437351 | Friction disk brake mechanism for electric motor A brake mechanism for selectively stopping and permitting rotation of a shaft journaled in a motor frame, the brake mechanism comprising: a brake hub secured to the shaft for rotation therewith, the hub including a plurality of first splines each having a... | 08/01/1995 |
| 5377790 | Brake pad clip with holding, side and damper portions A disc brake assembly includes a disc rotor, a pair of brake pads, a mounting member supporting at least one of the brake pads so as to be able to slide in the parallel direction with respect to a rotational shaft of the disc rotor, a caliper member slida... | 01/03/1995 |
| 5259485 | Truck car braking system A slack adjuster adapted for use in railroad truck car braking mechanisms. The slack adjuster compensates for wear of the truck car brake shoes by automatically adjusting the length of travel of the brake cylinder piston rod as the shoes wear. The slack a... | 11/09/1993 |
| 5251727 | Wear compensating return spring for floating caliper disc brake shoes A floating-caliper disc brake is described of a type having brake shoes (3, 4) which are positioned on either side of a brake disc (2) and with a brake caliper (1) which straddles the brake shoes (3, 4) and the edge of said brake disc (2), which brake cal... | 10/12/1993 |
| 5099967 | Drum brake assembly A drum brake assembly has brake shoes 2 and 3 within a rotatable drum 1. The shoes 2 and 3 are displaceable to effect braking by an hydraulic ram 7 and free ends 9 of the shoes react against an abutment 10. This reaction is effected through a layer of vis... | 03/31/1992 |
| 5069314 | Spot type disc brake including an improved hold down spring On the caliper (10) of a spot-type disc brake a hold-down spring (40) of sheet metal is supported with a supporting region (42) formed thereon near a brake pad (28); from there it extends in cantilever manner beyond the brake disc (18). The hold-down spri... | 12/03/1991 |
| 5067594 | Resilient guide for the brake housing of a floating caliper spot-type disc brake A resilient guide for the brake housing of a floating caliper spot-type disc brake for automotive vehicles in which the brake carrier is integrated into the steering knuckle. A resilient spring for a brake housing (1) of a floating caliper spot-type disc ... | 11/26/1991 |
| 5046589 | Reduction of caliper lining wear in air brakes In order to reduce friction and wear in an air brake system wherein a caliper moves on upper and lower slide pins and an air chamber is suspended from the caliper by a bracket a portion of the weight of the air chamber is suspended from the upper slide pi... | 09/10/1991 |
| 4823920 | Sliding caliper disc brake and brake shoe assembly therefor A disc brake assembly with a pivotable caliper is disclosed. The disc brake is a dual pin type, floating caliper disc brake wherein the caliper can be pivoted about one of the pins to facilitate servicing thereof while the caliper remains supported by tha... | 04/25/1989 |
| 4784242 | Pad for a disc brake and disc brake equipped with such pads The brake pad (10) comprises a lining (8), a lining support (11) and a spring (15) fastened at (17) to the support (11) near one edge of the support. The two free ends of this spring are shaped so that each forms a mechanism for attachment (23, 24, 25; 23... | 11/15/1988 |
| 4669583 | Disc brake with sliding calliper The invention concerns a disc brake with a sliding calliper (10) incorporating two shafts for guiding and holding two friction components (20, 24) which are capable of being actuated by a brake actuator (18), and incorporating a spring for noise suppressi... | 06/02/1987 |
| 4657119 | Device for attaching a component of a strut incorporating an automatic adjustment device for a shoe of a drum brake The attachment device incorporates a bearing zone (78) and a projection (80) formed in the web (16) of a shoe of a drum brake. A portion (68) of the component (46) to be attached to the shoe is retained in a working position between the bearing zone (78) ... | 04/14/1987 |
| 4607728 | Pad spring for disc brake and having restricting portion A pad spring for use in a disc brake including a stationary member adapted to be secured to a non-rotatable part of a vehicle at one side of a rotatable disc and having two circumferentially spaced leg portions which straddle the outer circumference of th... | 08/26/1986 |
| 4580664 | Sliding caliper disc brake A sliding caliper disc brake includes a caliper slidably mounted on a fixed torque-taking member to urge one friction pad onto one side of a rotatable disc and having a fluid actuated piston which urges the other friction pad onto the other side of the ro... | 04/08/1986 |
| 4553649 | Axial retention of the shoe of a drum brake and a drum-brake shoe equipped with an axial-retention device A drum brake assembly includes a pair of brake shoes which are slidably mounted on a fixed support. An elastic retention member is mounted on each of the shoes before they are assembled onto the fixed support. Each of the retention members includes a lock... | 11/19/1985 |
| 4522287 | Disc brake with camming member and torsion spring for vibration control A disc brake assembly (10) includes a rotor (12) having a pair of friction faces (14, 16) and a pair of friction elements (18, 20) disposed adjacent the friction faces. A caliper (32) is slidably mounted on a support member (22) by mounting mechanism (40)... | 06/11/1985 |