rock crushers patent
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rock crushers patent

US3987971A - Rock crusher - Google Patents

An impact type rock crusher having a rotor comprised of a plurality of stirrup type hammers adapted to swing through arcs of approximately 180° between bumper blocks about pivot axes as well as rotating about the main shaft of the rotor. The grate positioned beneath the rotor through which the crushed material exits may be moved uniformly radially with regard to the rotor to an alternate ...

US3370795A - Rock crusher - Google Patents

ROCK CRUSHER Filed July 6, 1965 ATTORNEYS United States Patent 3,370,795 ROCK 'CRUSHER Lorentz Selmer, Oslo, Norway, assignor to Ingenior F. Selmer A/ S, Oslo, Norway Filed July 6, 1965, Ser. No. 469,704 Claims priority, application Norway, July 9, 1964, 153,967 3 Claims. (Cl. 241-81) ABSTRACT OF THE DISCLOSURE This application discloses a rock ...

US5863006A - Rock crusher - Google Patents

The rotor of a vertical shaft impact rock crusher is balanced by placing steel balls in a hollow ring attached around the top of the rotor. The vanes within the impeller are constructed to form rock shields on the forward or impact side of the vanes. Rocks are fed into the impeller upon a free floating table. The top of the free floating table is protected by a tungsten carbide disc.

US8322643B2 - Rock crusher attachment - Google Patents

The present invention relates to the field of rock crushers, in particular, rock crusher attachments for earth moving equipment or the like. The rock crusher attachment includes a front bucket portion configured for scooping rocks to be crushed and a rear crusher portion connected to and in communication with the rear of the bucket portion.

US6935587B2 - Mobile rock crushing plant - Google Patents

A rock crushing plant including rock crushers, screens and conveyors. The assembly is modularized whereby major components and associated support structures are organized into movable modules that are independently movable from site to site over public roadways. The modules are equipped with appropriate support wheels for traveling and stabilizing jacks for stabilization of the modules at a ...

US6536693B2 - Rock crusher seal - Google Patents

A socket seal for a gyratory crusher is comprised of a ring with a pair of lips extending therefrom. The ring can have an outwardly expanding dovetail which is inserted into a slot in the piston or hemispherical bearing socket. The seal prevents downward flow of oil from the lubricated space between the hemispherical bearing ball and socket.

US20060102760A1 - Clutch for rock crusher - Google Patents

A substantially unidirectional clutch for rock crushers that may help prevent undesired rotation of the cone. US20060102760A1 - Clutch for rock crusher - Google Patents Clutch for rock crusher Download PDF Info Publication number US20060102760A1. ...

Rock Crusher History - Mineral Processing Metallurgy

Apr 17, 2018  Rock Crusher History. History tells us, it was in 1830, the first US patent was issued on a rock crushing machine. It covered a device which, in a crude way, incorporated the drop hammer principle later used in the famous stamp mill, whose history is so intimately linked with that of the golden age of mining. In 1840, another patent was issued ...

Rock Stone Crushers Rock Crushing Machines Williams ...

Williams Patent Crusher is proud to offer a line of rock crushing machines that provide a wide range of available options. We understand that every crushing and grinding job is different, and we strive to make sure every machine we construct is a custom solution that gets a specific job done right.

Rock crusher - Boyd Motors Limited

3. The rock crusher as claimed in claim 2, wherein at least one of said jaws is biased against a roller. 4. The rock crusher as claimed in claim 2, wherein said upper portions of said first and second jaws diverge from each other so that in cross-section said upper portions form a substantially funnel shape. 5.

Rock Crusher History - Mineral Processing Metallurgy

Apr 17, 2018  Rock Crusher History. History tells us, it was in 1830, the first US patent was issued on a rock crushing machine. It covered a device which, in a crude way, incorporated the drop hammer principle later used in the famous stamp mill, whose history is so intimately linked with that of the golden age of mining. In 1840, another patent was issued ...

Rock crusher - RAWSON; JAMES W.

16. Apparatus for crushing rock into aggregate as set forth in claim 9 . wherein said operating means includes a hydraulic actuator operatively engaged, respectively, to said frame and to said movable jaw. 17. A method of crushing rock into aggregate comprising the steps of: introducing rock to be crushed into an entry region of a rock crusher;

Rock crusher - Texas Crusher Systems, Inc.

Reciprocating infeed tube for centrifugal impact rock crusher: 1982-04-27: Rose: 3540667: IMPACT TYPE ROCK CRUSHER: 1970-11-17: Parker: 3358939: Feeder for cone crushers and the like: 1967-12-19: Gasparac et al. 3346203: Impeller for centrifugal pulverizer: 1967-10-10: Danyluke: 241/275: 3174698: Rotary rock crusher: 1965-03-23: Miller: 3174697 ...

Analytics for US Patent No. 4927089, Rock crushers

Rock crushers Number of patents in Portfolio can not be more than 2000 United States of America Patent. PATENT NO: 4927089: SERIAL NO: 07263865: DOCKET NO: 0 Status Updates ... Hydraulic control system for controlling the movement of the movable jaw of a rock crusher between a first set position and a retracted position. The control system ...

The Blake Rock Crusher – Today in History: June 15 ...

Jun 15, 2019  On June 15, 1858, Eli Whitney Blake of New Haven was granted US patent No. 20,542 for a "machine for crushing stone." The nephew of cotton-gin inventor Eli Whitney, Blake gained civil and mechanical engineering skills at the Whitney Armory, his uncle's arms factory, which he and his brothers ran upon Whitney's death. The brothers left the armory in 1835 and opened a hardware factory, Blake ...

Patents Assigned to Cedarapids, Inc. - Justia Patents Search

Apr 10, 2008  Date of Patent: April 7, 2009. Assignee: Cedarapids, Inc. Inventors: Gregory A. Young, Steven A. Reicks. Jaw-type rock crusher with toggle plate tension bar. Patent number: 7510134. Abstract: A jaw crusher where the tension rod includes an electronically-controlled hydraulic pre-load and an automatically releasable pre-load whenever adjustments ...

Astec Rock Crushers Patent Claims Invalid, Judge Rules ...

The patent, issued in March 2000 and titled "Adjustment for rock crusher," describes a crusher with a conical bowl that can be adjusted to break rock into different sizes for use in road beds ...

William F. Burr Inventions, Patents and Patent ...

Date of Patent: December 29, 1992. Assignee: Canica Crushers, Inc. Inventors: Neil M. Rose, Stephen B. Ackers, Brett M. Rose, William F. Burr. Mounting apparatus for impeller for a centrifugal impact crusher. Patent number: 5137220. Abstract: An apparatus for mounting impeller blocks to the turntable of a centrifugal impact crusher is provided.

Sandvik Mining and Rock Technology — Mining Equipment ...

Sandvik rock drills or rotation heads - depending on application - are the heart of any rock drilling equipment. As the leading supplier of rock drill technology in the world, we design, produce and deliver these core components and their spare parts for underground drilling and surface drilling.

US Patent Full-Text Database Number Search

US Patent Full-Text Database Number Search. Query [Help] Utility patents must have numbers entered as seven or eight characters in length, excluding commas, which are optional. Examples: 10,000,000 -- 100000000 -- 6923014 -- 6,923,014 -- 0000001. Note: Utility Patent 10,000,000 will issue in 2018.

Patents Resources Telsmith

Country Patent No. Date Issued Patent Description Inventor(s) Equipment Model; U.S.A. 6,032,886: 3/7/2000: Adjustment for Rock Crusher: Drinkwater, Clark, Parker ...

Particle Size Reduction Equipment Williams Patent Crusher

Williams Patent Crusher has been a leader in the size reduction industry since 1871, with over 500 patents and trademarks to its credit. We set ourselves apart from other size reduction equipment companies with the diverse line of equipment and customization options for each machine.

Crusher - Wikipedia

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, sand or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.

Rock crusher - Boyd Motors Limited

3. The rock crusher as claimed in claim 2, wherein at least one of said jaws is biased against a roller. 4. The rock crusher as claimed in claim 2, wherein said upper portions of said first and second jaws diverge from each other so that in cross-section said upper portions form a substantially funnel shape. 5.

Rock crusher - RAWSON; JAMES W.

16. Apparatus for crushing rock into aggregate as set forth in claim 9 . wherein said operating means includes a hydraulic actuator operatively engaged, respectively, to said frame and to said movable jaw. 17. A method of crushing rock into aggregate comprising the steps of: introducing rock to be crushed into an entry region of a rock crusher;

Rock crusher - Texas Crusher Systems, Inc.

Reciprocating infeed tube for centrifugal impact rock crusher: 1982-04-27: Rose: 3540667: IMPACT TYPE ROCK CRUSHER: 1970-11-17: Parker: 3358939: Feeder for cone crushers and the like: 1967-12-19: Gasparac et al. 3346203: Impeller for centrifugal pulverizer: 1967-10-10: Danyluke: 241/275: 3174698: Rotary rock crusher: 1965-03-23: Miller: 3174697 ...

Rock crusher - LEBLOND; MICHEL

A rock crusher comprises a pair of rotors spaced apart to define a throat therebetween and driven in opposite directions. Impactor bars on the rotors crush rock that is delivered to the rotors and passes the broken rock fragments through the throat. The rock crusher may be conveniently provided in a harvesting vehicle such as a potato harvester ...

Portable rock crusher - RICHARD W. HANSEN

The crushers shown in the foregoing patents disclose the use of a variety of swinging elements. Other arrangements of flail type swing elements and means for attaching them to rotors or drums are shown in U.S. Pat. Nos. 1,687,093, 2,573,227 and 3,608,842 and U.S. Pat. Nos., 4,172,481 and 4,222,418 show lengths of chain used as flails mounted to ...

Patents Assigned to Cedarapids, Inc. - Justia Patents Search

Apr 10, 2008  Date of Patent: April 7, 2009. Assignee: Cedarapids, Inc. Inventors: Gregory A. Young, Steven A. Reicks. Jaw-type rock crusher with toggle plate tension bar. Patent number: 7510134. Abstract: A jaw crusher where the tension rod includes an electronically-controlled hydraulic pre-load and an automatically releasable pre-load whenever adjustments ...

Crusher - Wikipedia

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, sand or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.

William F. Burr Inventions, Patents and Patent ...

Date of Patent: December 29, 1992. Assignee: Canica Crushers, Inc. Inventors: Neil M. Rose, Stephen B. Ackers, Brett M. Rose, William F. Burr. Mounting apparatus for impeller for a centrifugal impact crusher. Patent number: 5137220. Abstract: An apparatus for mounting impeller blocks to the turntable of a centrifugal impact crusher is provided.

US Patent Full-Text Database Number Search

US Patent Full-Text Database Number Search. Query [Help] Utility patents must have numbers entered as seven or eight characters in length, excluding commas, which are optional. Examples: 10,000,000 -- 100000000 -- 6923014 -- 6,923,014 -- 0000001. Note: Utility Patent 10,000,000 will issue in 2018.

Sandvik Mining and Rock Technology — Mining Equipment ...

Sandvik rock drills or rotation heads - depending on application - are the heart of any rock drilling equipment. As the leading supplier of rock drill technology in the world, we design, produce and deliver these core components and their spare parts for underground drilling and surface drilling.

David R. Cross quoted in article “Astec Rock Crushers ...

Dec 06, 2012  David R. Cross quoted in article “Astec Rock Crushers Patent Claims Invalid, Judge Rules” ... Metso argued that the three asserted patent claims were invalid as obvious and anticipated, while Astec made the case that the patent claims were valid and that Metso had infringed them.

Particle Size Reduction Equipment Williams Patent Crusher

Williams Patent Crusher has been a leader in the size reduction industry since 1871, with over 500 patents and trademarks to its credit. We set ourselves apart from other size reduction equipment companies with the diverse line of equipment and customization options for each machine.

Metso Sues To Nix Astec Rock Crusher Patent - Law360

The '886 patent, issued in March 2000 and titled "Adjustment for rock crusher," describes a crusher with a conical bowl that can be adjusted to break rock into different sizes for use in road beds.

Hammer Mills for Material Reduction Williams Patent Crusher

HAMMER MILLS. Williams Patent Crusher is a leading industrial hammer mill manufacturer. Our industrial size reduction machines can handle any material size reduction job. Choose a Williams machine for high efficiency and economy. Using midair and impact crushing, grinding, and shredding, our machines can handle virtually any material.

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