US3624794A - Inspection means for concrete-handling system - Google Patents
Inspection means for concrete-handling system Download PDFInfo
- Publication number
- US3624794A US3624794A US784376A US3624794DA US3624794A US 3624794 A US3624794 A US 3624794A US 784376 A US784376 A US 784376A US 3624794D A US3624794D A US 3624794DA US 3624794 A US3624794 A US 3624794A
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- United States
- Prior art keywords
- concrete
- opening
- cover
- cover assembly
- inspection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L45/00—Pipe units with cleaning aperture and closure therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
Definitions
- Patented [73] Assignee [54] INSPECTION MEANS FOR CONCRETE- [56] References Cited UNlTED STATES PATENTS 349,680 9/1886 Babcock Primary Examiner-Robert B. Reeves Assistant Examiner-Frederick R. l-landren Attorney-Holman & Stern ABSTRACT: An improved concrete-handling system comprising a concrete pump, delivery conduit means to carry the concrete from the pump to a remote worksite, and inspection means interposed between the concrete pump and the conduit is disclosed.
- the inspection means includes a pipe section with a portion cut away to provide easy access to the same and with cover means to close the opening during normal use. Clamps are provided to hold the cover means in position
- the inspection means is especially useful to determine the location of a possible stoppage in the system as well as to sample the concrete flowing therethrough.
- ⁇ Q is ROBERT C. FUTTY ATTORNEYS INSPECTION MEANS FOR CONCRETE-HANDLING SYSTEM .
- This invention relates to systems for conveying materials. More particularly, this invention relates to systems for conveying semifiuid materials such as concrete or the like. More specifically, this invention relates to an improvement in a system which includes a force-feed or pump for semifluid material which handles concrete from a delivery source such as a self-contained premix truck, and delivers the same to a remote point of utilization, such as a building construction form, through conduit means, the improvement comprising inspection means interposed between the force-feed or pump and the conduit means.
- the construction industry has derived great benefit in recent years from the many innovations in building materials and methods for utilizing the same.
- concrete is being used for more than just building foundations or as mortar, it is being used, in either precast or ready-mix form, in structural members at heights many feet above the ground.
- the concrete is delivered to building sites by the familiar, conventional readymix truck having a rotatable mixing drum mounted upon its bed with an opening therein for receiving the concrete ingredients. After charging the ingredients into the drum, the same is rotated about its axis to mix the concrete while the truck is en route to the construction site. When the truck arrives at its destination, an outlet opening in the drum is uncovered and the mixed concrete is discharged therefrom.
- the concrete is delivered gravitationally from the drum.
- Still another type of concrete mixing and delivery system is that described and claimed in Harold M. Zimmerman's US. Pat. No. 3,310,293, dated Mar. 21, 1967. in this patent a system is taught which permits selective variation of the ingredients of the concrete mixture, as well as the formulation and delivery of relatively small batches of concrete, thereby obviating a severe drawback of the drum-type ready-mix concrete trucks.
- the concrete ingredients are carried separately until the truck is on the site whereat the concrete is to be used.
- the proper proportions of the ingredients are metered and positively delivered into a mixing trough which contains means for uniformly mixing the ingredients to a proper concrete.
- the concrete is discharged from the trough to whatever means will be used for carrying the same to the specific location where it is to be used.
- concrete pumps can be said to comprise hopper means to receive the concrete from a source of the same, means to feed the concrete from the hopper means to pump means, power means to drive the pump means, and outlet means from the pump means.
- the pump means includes a chamber and a piston along with some type of valve means operatively associated therewith.
- the outlet is closed by valve means while concrete enters from the inlet.
- the piston then moves forwardly, the inlet then being blocked by valve means and the outlet being opened, and propels the concrete through the outlet.
- Conduit means are connnected to the outlet of the pump and carry the concrete to the remote work site whether it be at ground level, lower than ground level, or higher than ground level. When the concrete is propelled outwardly from the pump it moves into the conduit. After a number of cycles, the conduit becomes filled and each successive cycle of the pump drives the concrete through the conduit to its outlet end where it is directed into a mold.
- inspection means for a concrete-handling system which means comprises a removable tubular section disposed between the outlet end of the concrete pump and an elongated conduit for carrying the concrete to a remote worksite, such tubular section having a segmental section of the wall removed to provide an inspection opening and cover means for the opening to seal the same in ordinary use but which can be easily and quickly opened to expose the opening.
- FIG. 1 is an elevational view of the system of the present invention
- FIG. 2 is an elevational view of the inspection section of the present invention with the cover member in the closed position;
- FIG. 3 is a vertical cross-sectional view taken on the line 3 3 of FIG. 2;
- FIG. 4 is a perspective view of the inspection section of the present invention with the cover member in the opened position.
- a concrete pump generally designated by the numeral 10, includes inlet means for the mixed concrete, shown as a hopper 12.
- the pump means 14 generally encompasses the cylinder and piston arrangement along with the various pneumatic or hydraulic controls.
- Concrete pump 14 is powered by drive means 16, the whole being mounted on a trailer chassis 18 adapted to be towed to the site by a truck or other vehicle.
- the removable inspection section 24 Between the outlet end 20 of the pump 14 and delivery conduit 22 is disposed the removable inspection section 24.
- Conduit 22 carries the concrete from the pump to the remote work site and can be fabricated of any suitable material which will withstand the internal pressure and the generally rugged use to which it will be subjected. Conduit 22 can be either rigid or flexible.
- the removable inspection section 24 is a tubular pipe section 26 having releasable coupling means 28 at each end to connect the same to the outlet end 20 of the pump 14 and to the elongated conduit 22, respectively.
- Coupling means 28 are conventional and are preferably of the snap-type couplers shown in FIG. 4.
- a segmental section of the wall of tubular section 26 is removed to provide an opening 30 through which it can be determined whether the concrete is flowing properly through the system.
- Cover member 32 is made to fit snugly into opening 30 and is securely fixed to gasket means 34 which, in turn, is secured to outer covering 36.
- cover assembly generally designated by the numeral 38.
- Coupling means 40 comprises lower member 42 and upper member 44. Opposite opening 30 are welded circumferentially spaced radially extending spacers 46 to which lower members 42 are affixed as by bolts 48. Lower members 42 are generally semicircular in shape and made of channel stock.
- Lower member 42 widens out into wide flange section portion 50, and at the other end into hinge portion 52.
- Upper member 44 is similar to lower member 42 and is affixed to upper spacer 54 which in turn is secured, as by bolting, to outer cover member 36.
- Upper member 44 is hingedly secured to lower member 42 by hinge pin 56.
- cover assembly 38 is closed surfaces 58 and 60 of upper member 44 and lower member 42, respectively, mate at 62.
- Snap lock members 64 are pivotally attached to lower member 42 by means of extension member 66 and pivot pins 68 and 70, respectively. Accordingly, after the cover assembly 38 is closed snap lock member swings upwardly so that extension member 66 lies within channels 72 and 74 and portion 76 of snap lock member 64 bears against surface 78 of upper member 44, thereby locking snap lock member 64 in place.
- the cover assembly 38 When the cover assembly 38 is thereby closed and locked the inspection opening 30 is tightly sealed and no leakage can occur. As long as the concrete is flowing properly there is no need to open the section. Only when a stoppage occurs or when sampling is necessary must the unit be opened. If the conduit 22 is carrying the concrete to a remote location which is above ground level, and a stoppage occurs thereby necessitating opening the inspection section 24, determination of whether the stoppage is in the conduit 22 or the concrete pump 10 is easily made. With the inspection section 24 opened and the pump 14 stopped, a slow backflow of concrete indicates that the stoppage is not in the conduit 22. If the concrete level in the section is low, that indicates that the concrete pump is not operating properly.
- the pump may be operated for one cycle, for instance, for a visual determination of the output of the same.
- the inspection section can also be used to provide ready access to the system for cleaning purposes without the need to disassemble the same.
- means for establishing a flow of concrete means communicating with said first-mentioned means for conveying such established flow to a point of utilization of said concrete, and means located between said first and said second-mentioned means permitting inspection of such flow and for determining abnormalities therein, said first-mentioned means comprising force feed means, said second-mentioned means comprising a conduit section having an inspection opening therein, a cover member for said opening, and positive-locking, easily releasable coupling means to secure said cover member over said opening, said cover member fitting snugly into said opening and having affixed thereto gasket means and outer covering means thereby forming cover assembly means, said coupling means comprising a lower member, said lower member being secured to said conduit section opposite said opening; an upper member, said upper member being secured to said cover assembly and hingedly attached to said lower member such that said cover assembly is pivoted upwardly and outwardly to an opened position and downwardly and inwardly to a closed position wherein said first-mentioned means comprising force
- means for establishing a flow of concrete means communicating with said first-mentioned means for conveying such established flow to a point of utilization of said concrete, and means located between said firstand said second-mentioned means permitting inspection of such flow and for determining abnormalities therein, said first-mentioned means comprising force feed means, said second-mentioned means comprising conduit means, and said third-mentioned means comprising a conduit section having an inspection opening therein, a cover member for said opening, and positive-locking, easily releasable coupling means to secure said cover member over said opening, said cover member fitting snugly into said opening and having affixed thereto gasket means and outer covering means thereby forming cover assembly means, said coupling means comprising a lower member, an upper member, and a snap lock member, said lower member being secured to said conduit section opposite said opening through lower spacer means, said upper member being secured to said cover assembly through upper spacer means and hingedly attached to said lower member such that
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78437668A | 1968-12-17 | 1968-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3624794A true US3624794A (en) | 1971-11-30 |
Family
ID=25132271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US784376A Expired - Lifetime US3624794A (en) | 1968-12-17 | 1968-12-17 | Inspection means for concrete-handling system |
Country Status (1)
Country | Link |
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US (1) | US3624794A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874550A (en) * | 1973-06-21 | 1975-04-01 | Jerry D Gordon | Access door for cylinder |
WO2002021655A1 (en) * | 2000-09-11 | 2002-03-14 | Contact Gmbh | Add-on housing |
EP1329661A3 (en) * | 2002-01-18 | 2003-10-22 | Blücher Metal ApS | Cleanable pipe for discharge system |
US20050205134A1 (en) * | 2004-03-19 | 2005-09-22 | Conbraco Industries Inc. | Valve housing, cover, seal and method |
US20060243757A1 (en) * | 2005-04-28 | 2006-11-02 | B.H.K. Pty Ltd | Applicator for particulate matter |
FR2904085A1 (en) * | 2006-07-24 | 2008-01-25 | Sas Sanitec Ocene Soc Par Acti | Water transporting pipe interior inspecting device for use in farming, has cover permitting to open and to block transparent or semi-transparent tube, and having return-flow system made of elastic material to bring cover in closed position |
US20140338758A1 (en) * | 2012-10-19 | 2014-11-20 | Msd Research, Inc. | Drain line access device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US349680A (en) * | 1886-09-28 | stillmaf babcogk | ||
US781080A (en) * | 1904-11-07 | 1905-01-31 | Arthur C Lynch | Hand-hole covering. |
US1006260A (en) * | 1909-05-18 | 1911-10-17 | Nat Water Main Cleaning Company | Pipe-fitting. |
US2021108A (en) * | 1934-10-10 | 1935-11-12 | Chain Belt Co | Discharge gate for concrete transportation systems |
US3485481A (en) * | 1968-02-27 | 1969-12-23 | Harold M Zimmerman | Concrete conveyor |
US3520333A (en) * | 1967-09-26 | 1970-07-14 | Mechanical Constructors Inc | Concrete in line discharge gate |
-
1968
- 1968-12-17 US US784376A patent/US3624794A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US349680A (en) * | 1886-09-28 | stillmaf babcogk | ||
US781080A (en) * | 1904-11-07 | 1905-01-31 | Arthur C Lynch | Hand-hole covering. |
US1006260A (en) * | 1909-05-18 | 1911-10-17 | Nat Water Main Cleaning Company | Pipe-fitting. |
US2021108A (en) * | 1934-10-10 | 1935-11-12 | Chain Belt Co | Discharge gate for concrete transportation systems |
US3520333A (en) * | 1967-09-26 | 1970-07-14 | Mechanical Constructors Inc | Concrete in line discharge gate |
US3485481A (en) * | 1968-02-27 | 1969-12-23 | Harold M Zimmerman | Concrete conveyor |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874550A (en) * | 1973-06-21 | 1975-04-01 | Jerry D Gordon | Access door for cylinder |
WO2002021655A1 (en) * | 2000-09-11 | 2002-03-14 | Contact Gmbh | Add-on housing |
US6593531B2 (en) | 2000-09-11 | 2003-07-15 | Contact Gmbh | Add-on housing |
EP1329661A3 (en) * | 2002-01-18 | 2003-10-22 | Blücher Metal ApS | Cleanable pipe for discharge system |
US20050205134A1 (en) * | 2004-03-19 | 2005-09-22 | Conbraco Industries Inc. | Valve housing, cover, seal and method |
US20060243757A1 (en) * | 2005-04-28 | 2006-11-02 | B.H.K. Pty Ltd | Applicator for particulate matter |
US7641082B2 (en) * | 2005-04-28 | 2010-01-05 | Kenneth John Seton | Applicator for particulate matter |
FR2904085A1 (en) * | 2006-07-24 | 2008-01-25 | Sas Sanitec Ocene Soc Par Acti | Water transporting pipe interior inspecting device for use in farming, has cover permitting to open and to block transparent or semi-transparent tube, and having return-flow system made of elastic material to bring cover in closed position |
US20140338758A1 (en) * | 2012-10-19 | 2014-11-20 | Msd Research, Inc. | Drain line access device |
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Owner name: M & I MARSHALL & ILSELEY BANK, NORTHWESTERN MUTUAL Free format text: SECURITY INTEREST;ASSIGNOR:BARBER-GREENE COMPANY;REEL/FRAME:004246/0253 Effective date: 19840203 |
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Owner name: C.S. JOHNSON COMPANY, 502 KENWOOD, CHICAGO, ILL AN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BARBER-GREENE COMPANY;REEL/FRAME:004357/0944 Effective date: 19850123 |
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Owner name: BARBER-GREENE COMPANY,ILLINOIS Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST NATIONAL BANK OF CHICAGO AS AGENT FOR SEE DOCUMENT FORNAMES;REEL/FRAME:004688/0001 Effective date: 19861224 Owner name: BARBER-GREENE COMPANY, 400 N. HIGHLAND AVE., AUROR Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST NATIONAL BANK OF CHICAGO AS AGENT FOR SEE DOCUMENT FORNAMES;REEL/FRAME:004688/0001 Effective date: 19861224 |
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Owner name: BARBER-GREENE COMPANY, A DE. CORP.,ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:B.V. OCEANIC FINANCE COMPANY;REEL/FRAME:004730/0767 Effective date: 19861229 Owner name: BARBER-GREENE COMPANY, 400 NORTH HIGHLAND AVENUE, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:B.V. OCEANIC FINANCE COMPANY;REEL/FRAME:004730/0767 Effective date: 19861229 |