US2903971A - Pumps - Google Patents

Pumps Download PDF

Info

Publication number
US2903971A
US2903971A US661754A US66175457A US2903971A US 2903971 A US2903971 A US 2903971A US 661754 A US661754 A US 661754A US 66175457 A US66175457 A US 66175457A US 2903971 A US2903971 A US 2903971A
Authority
US
United States
Prior art keywords
rotor
pump
cylinder
head
shaft
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
Application number
US661754A
Inventor
Lowell J Collins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US661754A priority Critical patent/US2903971A/en
Application granted granted Critical
Publication of US2903971A publication Critical patent/US2903971A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/50—Intrinsic material properties or characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/01—Materials digest

Definitions

  • This invention relates to pumps for use in the process.- ing of foods, and provides a pump which is unaffected by foods or food acids or any of the products which are incorporated in the foods, or by water or detergents, one which is composed of an absolute of parts and which is quickly and easily assembled and disassembled Ito permit rapid washing and sterilization after each operation, a pump which will not mash or otherwise damage the foods in view of the substantially free and unobystructed passages.
  • V The pump is secured in its assembled form by thumb nuts or thumb screws or similar manually operable securing means, removal of the one head permitting withdrawal of shaft, piston, bushings and vane for thorough cleaning and sterilization.
  • Fig. 1 is a vertical sectional elevation through the invention.
  • Fig. 2 is a plan view with the cylinder shown in section.
  • Fig. 3 is an end view of the piston with the adjacent end shaft removed.
  • Fig. 4 is a fragmentary *view drawn to an enlarged scale showing the connection between one end shaft and the piston bearing plates.
  • Fig. 5 is an end view ofthe shafts.
  • This particular type of pump is well known in the art but the type of construction and arrangement, the ease Tice and rapidity of assembly and disassembly, and the eco- ⁇ nomical use of non-corrosive materials, to provide an easily and quickly cleaned and sterilized unit are believed to be new, and consists of a cylinder or housing 10 having an integral head 11 at one end and a flange 12 at the other end, and may be formed in various ways, such as by the use of a punch to distort a tube, by forming the cylinder from sheet metal about a mandrel of proper form, or by vdrawing or spinning from sheet metal.
  • the fixed head 11 is formed integrally with the cylinder and the same applies to spinning.
  • the head When formed by other means, the head must be welded, brazed or otherwise fixed to the end of the cylinder after forming, The same applies also to the ange 12.
  • the intake and discharge connections 13 and 14 are applied to the cylinder, and these passages through the connections open into the cylinder throughout almost the entire length of the cylinder leaving only a relatively narrow bearing area for the vane as indicated at 15 and -16 for the free flow of material in and out of the cylinder.
  • the removable head i17 is provided with a suitable pilot 18 for positive alignment with the cylinder, and is also provided with sealing means such as the O-ring, and any 'suitable quick-acting manually operable securing means, such as thumb screws or thumb nuts 18', is provided, the' O-ring '19 being set in the head and being compressed against the flange 12 when the thumb nuts are tightened.
  • Each head is provided with a bearing sleeve 20 and 21 respectively and may be formed integrally with the heads or may consist of a section of tubing fixed in or to the heads as shown, the sleeveZl being closed at the end as indicated at 22, the head 20 on the removable head having the terminal end threaded as indicated at 23 for the Vpacking gland 24.
  • Piston 27 is formed of two substantially semicylindrical lengths of the same synthetic plastic as the bushings and are faced on their llat surfaces with suitable stainless and non-corrosive metal plates as indicated at 28 and 29 which are lixed to the piston sections 30 and 31 by any suitable securing means such as screws 32, the plates 28 and 29 extending beyond both ends of the piston as indicated at 33 and 34.
  • the stub shaft 35 and drive shaft S6 are each slotted at one end with two spaced slots -37 and 38, the intervening material between the slots being equal to the thickness of the vane 40 plus sliding clearance, the projecting ends of the plates 28 and 29 being a force lit in these slots and being secured by suitable means such as the pin driven into the diametric hole 42.
  • the piston with its reciprocating Vane 40 and bushings 25 and 26 are removable since the bushings are slidable in the bearing sleeves and the shafts are rotatable in the bushings, thus also reducing friction as either the bushing or the shaft or both can rotate depending on the area of least frictional resistance.
  • a pump which is sanitary, non-corrodable, one which can be disassembled quickly, easily cleaned and sterilized, and just as quickly reassembled; one which is most economical to manufacture considering the high quality of material used; and one which will marring, squeezing or otherwise damaging the material being pumped.
  • An eccentric pump having Va rotor and having a vane slidable Vdiametrically through the rotor, comprising two substantially semicylindrical members each having a chordal face, a bearing plate removably mounted on each chordal face and having an end portion extending beyond each end of the rotor, a drive shaft and a stub 'shaft each having spaced parallel grooves formed in one end to receive said end portions, a bore formed diametrically through the one end of Veach shaft and inserted end portions, and a pin removably securable in each bore, providing a rotor completely disassembleable for cleaning and sterilization and reassembleable at will for pumping of food products, said pump having bearings and a bushing for each bearing and formed of a synthetic plastic material for self-lubrication through the medium of the liquid content of the food material being pumped to maintain the food material against contamination by externally supplied lubricants, said bushings being slidably supported in said bearings and rot
  • a pump comprising a cylinder having a removable head for one end of the cylinder and including manually operable securing means for quick removal and replacement of said removable head, a lixed head integral with the other end of lsaid cylinder, bearings eccentrically located in said heads, a bushing for each bearing and slidable therein for removal and replacement at will, a rotor comprising two substantially semi-cylindrical members each having a plane chordal face and including a bearing plate removably secured to each chordal face, coaxial yshafts including a drive shaft for one end and a stub shaft for the other end of the rotor and respectively rotatable in said bushings, said shafts each having a pair of spaced parallel -grooves formed in one end, said bearing plates each having an extension at each end and fitting in said grooves and thereby being spaced to provide a slot therebetween and including means for removably lsecuring said extensions in said grooves, a reciprocatable vane s
  • a pump having an eccentrically mounted rotor and a vane slidable diametrically through said rotor, said rotor comprising two substantially semi-cylindrical members each having a chordal face, a bearing plate removably secured to each lchordal face and each having an extension at each end beyond the terminal ends ofthe rotor, coaxial shafts including a drive shaft for one end and a stub shaft for the other end of the rotor, spaced parallel grooves formed in one end of each shaft to a depth equal to the length of the extensions withthe bearing plate extensions tting in said grooves with the said one ends of the shafts contacting the ends of the rotor, the bearing plates thereby being spaced to slidably receive the vane, means for removably securing said extensions in said grooves to provide an integral rotor and shaft assembly, with said substantially semi-cylindrical members being formed of a synthetic plastic material for self-lubrication.
  • a rotor for an eccentric pump having a vane slidable diametrically through the rotor comprising, two substantially semi-cylindrical members each having a choral face, a bearing plate removably mounted on each chordal face and having an end portion extending beyond each 'end of the rotor, a drive shaft and a stub shaft each having spaced parallel grooves formed -in one end to receive said end portions, a bore formed diametrically through the one end of each shaft and inserted end portions, and a pin removably securable in each bore, providing a rotor completely disassembleable for cleaning Aand sterilization and reassembleable at Will for pumping of food products.

Description

Sept. l5, 1959 1 COLLlNs 2,903,971
' PUMPS Filed May 27', 1957 INVENToR.
United States Patent() PUMPS Lowell J. Collins, Oakland, Calif. Application May 27, 1951, seria1N0.f661,7s4 4 Claims. (cl. v10s-437) This invention relates to pumps for use in the process.- ing of foods, and provides a pump which is unaffected by foods or food acids or any of the products which are incorporated in the foods, or by water or detergents, one which is composed of an absolute of parts and which is quickly and easily assembled and disassembled Ito permit rapid washing and sterilization after each operation, a pump which will not mash or otherwise damage the foods in view of the substantially free and unobystructed passages.
It is known that pumps of the oscillating type, or eccentric piston with reciprocating blade have been made, but so far as known, the assemblies are relatively fixed and requiring tools for assembly and disassembly, while in my'pump all parts are designed for quick disassembly, cleaning and reassembly, the pump being self-lubricating through the medium of the liquid content of the substance being pumped, and therefore requiring no added lubrication and which might contaminate the food.
VThe pump is secured in its assembled form by thumb nuts or thumb screws or similar manually operable securing means, removal of the one head permitting withdrawal of shaft, piston, bushings and vane for thorough cleaning and sterilization.
The objects and advantages of the invention are as follows? First, to provide a pump for -transfer of food products, one which is sanitary and unaffected by the food elements and which is self-lubricating through the medium of the liquids contained in the food elements.
Second, to provide a pump as outlined which has only two moving partsincluding a rotating part'and a reciprocating part.
Third, to provide a pump as outlined with only one removable head and which head is removable without the use of tools of any lkind, removal of the head permitting complete disassembly of the pump for cleaning and sterilizationd Fourth, to provide a pump as outlined which permits substantially free and unobstructed flow of material through the pump.
Fifth, to provide a pump as outlined which is constructed of non-corrosive material so as to be unaffected by the foods, or affect the foods in any way.
In describing the invention reference will be had to the accompanying drawings, in which:
Fig. 1 is a vertical sectional elevation through the invention.
Fig. 2 is a plan view with the cylinder shown in section.
Fig. 3 is an end view of the piston with the adjacent end shaft removed.
Fig. 4 is a fragmentary *view drawn to an enlarged scale showing the connection between one end shaft and the piston bearing plates.
Fig. 5 is an end view ofthe shafts.
This particular type of pump is well known in the art but the type of construction and arrangement, the ease Tice and rapidity of assembly and disassembly, and the eco- `nomical use of non-corrosive materials, to provide an easily and quickly cleaned and sterilized unit are believed to be new, and consists of a cylinder or housing 10 having an integral head 11 at one end and a flange 12 at the other end, and may be formed in various ways, such as by the use of a punch to distort a tube, by forming the cylinder from sheet metal about a mandrel of proper form, or by vdrawing or spinning from sheet metal.
By drawing the cylinder, the fixed head 11 is formed integrally with the cylinder and the same applies to spinning. When formed by other means, the head must be welded, brazed or otherwise fixed to the end of the cylinder after forming, The same applies also to the ange 12.
After the cylinder has been formed to proper shape, the intake and discharge connections 13 and 14 are applied to the cylinder, and these passages through the connections open into the cylinder throughout almost the entire length of the cylinder leaving only a relatively narrow bearing area for the vane as indicated at 15 and -16 for the free flow of material in and out of the cylinder.
The removable head i17 is provided with a suitable pilot 18 for positive alignment with the cylinder, and is also provided with sealing means such as the O-ring, and any 'suitable quick-acting manually operable securing means, such as thumb screws or thumb nuts 18', is provided, the' O-ring '19 being set in the head and being compressed against the flange 12 when the thumb nuts are tightened.
Each head is provided with a bearing sleeve 20 and 21 respectively and may be formed integrally with the heads or may consist of a section of tubing fixed in or to the heads as shown, the sleeveZl being closed at the end as indicated at 22, the head 20 on the removable head having the terminal end threaded as indicated at 23 for the Vpacking gland 24.
ing added lubrication at any time.
; 'I he Piston 27 is formed of two substantially semicylindrical lengths of the same synthetic plastic as the bushings and are faced on their llat surfaces with suitable stainless and non-corrosive metal plates as indicated at 28 and 29 which are lixed to the piston sections 30 and 31 by any suitable securing means such as screws 32, the plates 28 and 29 extending beyond both ends of the piston as indicated at 33 and 34.
The stub shaft 35 and drive shaft S6 are each slotted at one end with two spaced slots -37 and 38, the intervening material between the slots being equal to the thickness of the vane 40 plus sliding clearance, the projecting ends of the plates 28 and 29 being a force lit in these slots and being secured by suitable means such as the pin driven into the diametric hole 42.
As will be noted, by removing the cover or head 17, the piston with its reciprocating Vane 40 and bushings 25 and 26 are removable since the bushings are slidable in the bearing sleeves and the shafts are rotatable in the bushings, thus also reducing friction as either the bushing or the shaft or both can rotate depending on the area of least frictional resistance.
Thus a pump is provided which is sanitary, non-corrodable, one which can be disassembled quickly, easily cleaned and sterilized, and just as quickly reassembled; one which is most economical to manufacture considering the high quality of material used; and one which will marring, squeezing or otherwise damaging the material being pumped.
I4 claim: l,
' `1. An eccentric pump having Va rotor and having a vane slidable Vdiametrically through the rotor, comprising two substantially semicylindrical members each having a chordal face, a bearing plate removably mounted on each chordal face and having an end portion extending beyond each end of the rotor, a drive shaft and a stub 'shaft each having spaced parallel grooves formed in one end to receive said end portions, a bore formed diametrically through the one end of Veach shaft and inserted end portions, and a pin removably securable in each bore, providing a rotor completely disassembleable for cleaning and sterilization and reassembleable at will for pumping of food products, said pump having bearings and a bushing for each bearing and formed of a synthetic plastic material for self-lubrication through the medium of the liquid content of the food material being pumped to maintain the food material against contamination by externally supplied lubricants, said bushings being slidably supported in said bearings and rotatably supporting said shafts, whereby the entire rotor unit is completely and quickly disassembleable at will for washing and sterilization.
2, A pump comprising a cylinder having a removable head for one end of the cylinder and including manually operable securing means for quick removal and replacement of said removable head, a lixed head integral with the other end of lsaid cylinder, bearings eccentrically located in said heads, a bushing for each bearing and slidable therein for removal and replacement at will, a rotor comprising two substantially semi-cylindrical members each having a plane chordal face and including a bearing plate removably secured to each chordal face, coaxial yshafts including a drive shaft for one end and a stub shaft for the other end of the rotor and respectively rotatable in said bushings, said shafts each having a pair of spaced parallel -grooves formed in one end, said bearing plates each having an extension at each end and fitting in said grooves and thereby being spaced to provide a slot therebetween and including means for removably lsecuring said extensions in said grooves, a reciprocatable vane slidable in said slot and having a length equal to that of the rotor, said rotor having a length equal to the interior length of the cylinder, an intake passage and a discharge passage for said cylinder and each extending throughout the major portion of the length of the cylinder for substantially unrestricted intake and discharge of pulp, said rotor cooperating with the |wall of the cylinder I throughout the length thereof between the intake and discharge passages, thereby providing a pump which is completely disassembleable for cleaning and sterilization and reassembleable in an absolute minimum of time.
3. In a pump having an eccentrically mounted rotor and a vane slidable diametrically through said rotor, said rotor comprising two substantially semi-cylindrical members each having a chordal face, a bearing plate removably secured to each lchordal face and each having an extension at each end beyond the terminal ends ofthe rotor, coaxial shafts including a drive shaft for one end and a stub shaft for the other end of the rotor, spaced parallel grooves formed in one end of each shaft to a depth equal to the length of the extensions withthe bearing plate extensions tting in said grooves with the said one ends of the shafts contacting the ends of the rotor, the bearing plates thereby being spaced to slidably receive the vane, means for removably securing said extensions in said grooves to provide an integral rotor and shaft assembly, with said substantially semi-cylindrical members being formed of a synthetic plastic material for self-lubrication.
4. A rotor for an eccentric pump having a vane slidable diametrically through the rotor comprising, two substantially semi-cylindrical members each having a choral face, a bearing plate removably mounted on each chordal face and having an end portion extending beyond each 'end of the rotor, a drive shaft and a stub shaft each having spaced parallel grooves formed -in one end to receive said end portions, a bore formed diametrically through the one end of each shaft and inserted end portions, and a pin removably securable in each bore, providing a rotor completely disassembleable for cleaning Aand sterilization and reassembleable at Will for pumping of food products.
References Cited in the leof this patent UNITED STATES PATENTS 1,382,065 Crago June 21, 1921 1,626,510 Chase Apr. 26, 1927 2,246,086 Austin .Tune 17, 1941 2,353,965 Meador July 18, 1944 2,373,656 Brull i Apr. 17, 1945 2,436,876 Stamsvik Mar. 2, 1948 2,668,068 Breedemeier Feb. 2, 1954 2,782,725 Hojberg Feb. 26, 1957 2,791,182 Scheidl May 7, 1957 FOREIGN PATENTS 146,647 Switzerland July 16, 1931 722,010 Germany June 29, 1942
US661754A 1957-05-27 1957-05-27 Pumps Expired - Lifetime US2903971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US661754A US2903971A (en) 1957-05-27 1957-05-27 Pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US661754A US2903971A (en) 1957-05-27 1957-05-27 Pumps

Publications (1)

Publication Number Publication Date
US2903971A true US2903971A (en) 1959-09-15

Family

ID=24654981

Family Applications (1)

Application Number Title Priority Date Filing Date
US661754A Expired - Lifetime US2903971A (en) 1957-05-27 1957-05-27 Pumps

Country Status (1)

Country Link
US (1) US2903971A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038452A (en) * 1959-04-01 1962-06-12 Grell Frank Rotary piston fluid motor
US3190183A (en) * 1962-05-10 1965-06-22 Cooper Bessemer Corp Air tool improvement
DE1255848B (en) * 1961-12-27 1967-12-07 Daimler Benz Ag Rotary piston machine
US3374943A (en) * 1966-08-15 1968-03-26 Kenneth G Cervenka Rotary gas compressor
US3491696A (en) * 1968-10-11 1970-01-27 Henry H Howard Centrifugal pump
US4231727A (en) * 1976-07-10 1980-11-04 Volkswagenwerk Aktiengesellschaft Vacuum producing rotary vane pump with shaft lubrication
US4253809A (en) * 1978-05-22 1981-03-03 Diesel Kiki Co., Ltd. Vane compressor with rotor having metallic base and vane slots and a periphery of lower specific gravity
FR2496162A1 (en) * 1980-12-15 1982-06-18 Kurherr Motoren Ag DELIVERY TURBINE
EP0339332A2 (en) * 1988-04-26 1989-11-02 Hans Dr. Wälchli Vane pump for the transport of food products
US5006053A (en) * 1987-03-12 1991-04-09 Seno Cornelio L Vertical single blade rotary pump
US20040174401A1 (en) * 2003-03-05 2004-09-09 Brother Kogyo Kabushiki Kaisha Pump and inkjet printer
EP1471255A1 (en) * 2003-04-24 2004-10-27 Joma-Hydromechanic GmbH Vane pump
WO2007054055A1 (en) * 2005-11-09 2007-05-18 Ixetic Hückeswagen Gmbh Pump, particularly a van-cell vacuum pump
DE102006016244A1 (en) * 2006-03-31 2007-10-04 Joma-Hydromechanic Gmbh Rotor pump e.g. vacuum pump, has rotor rotatably supported within interior space of pump housing, where slot of rotor is provided with inserts respectively placed at both sides facing impeller, where insert is steel sheet piece
WO2007115782A1 (en) * 2006-04-11 2007-10-18 Vhit S.P.A. A rotor for a vane pump, made of plastic material reinforced by metallic foil

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1382065A (en) * 1919-09-25 1921-06-21 Felix H Crago Rotary water-motor or pump
US1626510A (en) * 1925-08-18 1927-04-26 Universal Candy And Chocolate Rotary pump
CH146647A (en) * 1930-04-22 1931-04-30 Rud Baumgartner & Cie Rotary vane pump.
US2246086A (en) * 1940-01-08 1941-06-17 Du Pont Bearing
DE722010C (en) * 1940-08-23 1942-06-29 Hinrich Schottler Rotary piston machine with sliding jaws provided in the rotating runner
US2353965A (en) * 1941-06-18 1944-07-18 Meador Calender Corp Rotary pump or compressor
US2373656A (en) * 1941-12-01 1945-04-17 American Prototype Corp Rotary operating machine
US2436876A (en) * 1943-07-29 1948-03-02 Alfred L Stamsvik Rotary sliding vane pump structure
US2668068A (en) * 1949-09-08 1954-02-02 Norden Lab Corp Seal for rotary shafts
US2782725A (en) * 1954-05-18 1957-02-26 Hojberg Laurencio Brochner Rotary pump
US2791182A (en) * 1954-08-11 1957-05-07 Scheidl Julius Water aerating pump

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1382065A (en) * 1919-09-25 1921-06-21 Felix H Crago Rotary water-motor or pump
US1626510A (en) * 1925-08-18 1927-04-26 Universal Candy And Chocolate Rotary pump
CH146647A (en) * 1930-04-22 1931-04-30 Rud Baumgartner & Cie Rotary vane pump.
US2246086A (en) * 1940-01-08 1941-06-17 Du Pont Bearing
DE722010C (en) * 1940-08-23 1942-06-29 Hinrich Schottler Rotary piston machine with sliding jaws provided in the rotating runner
US2353965A (en) * 1941-06-18 1944-07-18 Meador Calender Corp Rotary pump or compressor
US2373656A (en) * 1941-12-01 1945-04-17 American Prototype Corp Rotary operating machine
US2436876A (en) * 1943-07-29 1948-03-02 Alfred L Stamsvik Rotary sliding vane pump structure
US2668068A (en) * 1949-09-08 1954-02-02 Norden Lab Corp Seal for rotary shafts
US2782725A (en) * 1954-05-18 1957-02-26 Hojberg Laurencio Brochner Rotary pump
US2791182A (en) * 1954-08-11 1957-05-07 Scheidl Julius Water aerating pump

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038452A (en) * 1959-04-01 1962-06-12 Grell Frank Rotary piston fluid motor
DE1255848B (en) * 1961-12-27 1967-12-07 Daimler Benz Ag Rotary piston machine
US3190183A (en) * 1962-05-10 1965-06-22 Cooper Bessemer Corp Air tool improvement
US3374943A (en) * 1966-08-15 1968-03-26 Kenneth G Cervenka Rotary gas compressor
US3491696A (en) * 1968-10-11 1970-01-27 Henry H Howard Centrifugal pump
US4231727A (en) * 1976-07-10 1980-11-04 Volkswagenwerk Aktiengesellschaft Vacuum producing rotary vane pump with shaft lubrication
US4253809A (en) * 1978-05-22 1981-03-03 Diesel Kiki Co., Ltd. Vane compressor with rotor having metallic base and vane slots and a periphery of lower specific gravity
FR2496162A1 (en) * 1980-12-15 1982-06-18 Kurherr Motoren Ag DELIVERY TURBINE
US5006053A (en) * 1987-03-12 1991-04-09 Seno Cornelio L Vertical single blade rotary pump
EP0339332A2 (en) * 1988-04-26 1989-11-02 Hans Dr. Wälchli Vane pump for the transport of food products
EP0339332A3 (en) * 1988-04-26 1990-04-25 Hans Dr. Wälchli Vane pump for the transport of food products
US7588432B2 (en) * 2003-03-05 2009-09-15 Brother Kogyo Kabushiki Kaisha Pump and inkjet printer
US20040174401A1 (en) * 2003-03-05 2004-09-09 Brother Kogyo Kabushiki Kaisha Pump and inkjet printer
EP1471255A1 (en) * 2003-04-24 2004-10-27 Joma-Hydromechanic GmbH Vane pump
WO2007054055A1 (en) * 2005-11-09 2007-05-18 Ixetic Hückeswagen Gmbh Pump, particularly a van-cell vacuum pump
DE102006016244A1 (en) * 2006-03-31 2007-10-04 Joma-Hydromechanic Gmbh Rotor pump e.g. vacuum pump, has rotor rotatably supported within interior space of pump housing, where slot of rotor is provided with inserts respectively placed at both sides facing impeller, where insert is steel sheet piece
WO2007118501A1 (en) * 2006-03-31 2007-10-25 Joma-Hydromechanic Gmbh Rotary pump
WO2007115782A1 (en) * 2006-04-11 2007-10-18 Vhit S.P.A. A rotor for a vane pump, made of plastic material reinforced by metallic foil
US20090104063A1 (en) * 2006-04-11 2009-04-23 Vhit S.P.A. Rotor for a vane pump, made of plastic material reinforced by metallic foil
JP2009533588A (en) * 2006-04-11 2009-09-17 ブヒット エス．ピー．エー． Vane pump rotor made of plastic material reinforced with metal foil
CN101410590B (en) * 2006-04-11 2010-11-17 Vhit公司 A rotor for a vane pump, made of plastic material reinforced by metallic foil
US8246332B2 (en) 2006-04-11 2012-08-21 Vhit S.P.A. Rotor for a vane pump, made of plastic material reinforced by metallic foil

Similar Documents

Publication Publication Date Title
US2903971A (en) Pumps
US2966860A (en) Pump for corrosive fluids
US4140444A (en) Flexible shaft assembly for progressing cavity pump
US2027185A (en) Mixing machine
US3059584A (en) Rotary pumps and compressors
US2642808A (en) Sanitary pump
US4057375A (en) Pump structure
US2958294A (en) Hose-type pump
US2827856A (en) Axial flow magnetic drive pumps
US1430894A (en) Screw pump
US2446194A (en) Pump construction
US4153400A (en) Rotary pumps circulating pumped fluid to seal
US3038414A (en) Pump
NO148658B (en) INFORMASJONSOVERFOERINGSSYSTEM.
US4251192A (en) Rotary pump with symmetrical by-pass and rotor with resiliently mounted vanes
BRPI0410110B1 (en) ANNULAR PUMP FOR BOLT TYPE LIQUIDS
US3079868A (en) Flexible hose pump
US2257349A (en) Pump
US3122103A (en) Flexible hose pump with resiliently pressed rollers
US2047329A (en) Pump or the like and driving means therefor
US2461624A (en) Sanitary pump
US2124918A (en) Rotary vane pump
US3527550A (en) Adjustable stroke reciprocating pump
EP3495660A1 (en) Peristaltic pump with rollers formed of borosilicate glass and related methods
US4185839A (en) Packing gland for pump shaft seal