US2127257A - Pinch-cock - Google Patents
Pinch-cock Download PDFInfo
- Publication number
- US2127257A US2127257A US135733A US13573337A US2127257A US 2127257 A US2127257 A US 2127257A US 135733 A US135733 A US 135733A US 13573337 A US13573337 A US 13573337A US 2127257 A US2127257 A US 2127257A
- Authority
- US
- United States
- Prior art keywords
- tube
- cock
- jaws
- jaw
- pinch
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/56—Labware specially adapted for transferring fluids
- B01L3/567—Valves, taps or stop-cocks
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/39—Cord and rope holders
- Y10T24/3916—One-piece
- Y10T24/392—Wire
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44641—Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member
- Y10T24/44769—Opposed engaging faces on gripping member formed from single piece of resilient material
- Y10T24/44778—Piece totally forms clasp, clip, or support-clamp and has shaped, wirelike, or bandlike configuration with uniform cross section throughout its length
- Y10T24/44821—Relatively movable segments of resilient gripping member contact and cross in nonuse position
- Y10T24/44829—Segments form opposed engaging faces
- Y10T24/44838—Segments form opposed engaging faces having specific handle structure
Definitions
- the invention relates to pinch-cocks for controlling flexible tubes used for the intermittent supplying of fluid, as in laboratory work.
- the object of the invention is to provide, in a cock adapted to be applied to a tube laterally, means for positively retaining the tube between the clamping jaws.
- Fig. 1 is a view of the cock in perspective
- Fig. 2 is a side elevational view of the cock applied to a tube, the jaws of the cock being spread apart to permit the flow of fluid through the tube;
- Fig. 3 is a similar View, but showing the tube closed by the spring action of the cock.
- the cock is formed of a continuous strip or strand of material such as spring wire as shown.
- the strand is bent, midway of its ends, to form a closed preferably circular loop Ill.
- the end portions of the strand After being crossed, as at l l in the formation of the loop, the end portions of the strand are bent, as at l2 and 3o !3, approximately radially as to the loop, and folded back upon themselves, as at M and I5, to form a pair of jaws I6 and I! which may be of substantially equal lengths although the former is slightly longer than the latter in order to form a 3.5 seat for the jaw ll when the cock is closed without a tube interposed between the jaws.
- Adjacent the inner ends of the jaws the ends of the strand are bent, each across the opposing jaw, and thence forwardly as shown at l8 and I9, and preferably 40 terminating in loops 20, 2
- the transverse planes of the two jaws are normal to each other, that of the jaw l6 being perpendicular to the axis of the loop [0.
- the return or top element of the jaw I6 is formed into a U-shaped retaining loop 22, adjacent the outer 5 end of the jaw, which normally extends between the two members of the jaw 11.
- the jaws are spread apart, the loop or tooth 22, however, preventing the escape of the tube whatever may be its size.
- a pinch cock comprising a pair of jaws each having a tube-compressing area intermediate its ends and having an outer free end, a spring portion connecting the inner ends of the jaws urging the jaws together, a tube-retaining projection ex- 25 tending from one jaw toward the other at a point between the free end and the tube-compressing area of the jaw, and a finger seat portion extending away from each jaw at a point between its tube-compressing area and the spring connection whereby said areas of the jaws may be separated to relieve compression on a tube between said areas, the length of each finger seat extension and the length of the tube-retaining projection being so proportioned as to permit a tube to be introduced laterally from the free ends of the jaws, between the projection and the other jaw, and on to the tube-compressing areas when said areas are separated by pressing the free ends of the finger seat portions toward each other.
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pipe Accessories (AREA)
Description
Aug" 16, 1938. ORNBER ER 2,127,257
PINCH COCK Filed April 8, 1937 Patented Aug. 16, 1938 UNITED STATES PATENT OFFICE PINCH-COCK Illinois Application April 8, 1937, Serial No. 135,733
1 Claim.
The invention relates to pinch-cocks for controlling flexible tubes used for the intermittent supplying of fluid, as in laboratory work.
As such cocks have heretofore been made, it
was necessary, in one type, to thread the tube through between the jaws, and in another, there was danger that it would escape from between them when the jaws were opened to permit the flow of the fluid.
The object of the invention is to provide, in a cock adapted to be applied to a tube laterally, means for positively retaining the tube between the clamping jaws.
The invention is fully hereinafter described and is illustrated in the accompanying drawing in which Fig. 1 is a view of the cock in perspective;
Fig. 2 is a side elevational view of the cock applied to a tube, the jaws of the cock being spread apart to permit the flow of fluid through the tube;
and
Fig. 3 is a similar View, but showing the tube closed by the spring action of the cock.
The cock is formed of a continuous strip or strand of material such as spring wire as shown. The strand is bent, midway of its ends, to form a closed preferably circular loop Ill. After being crossed, as at l l in the formation of the loop, the end portions of the strand are bent, as at l2 and 3o !3, approximately radially as to the loop, and folded back upon themselves, as at M and I5, to form a pair of jaws I6 and I! which may be of substantially equal lengths although the former is slightly longer than the latter in order to form a 3.5 seat for the jaw ll when the cock is closed without a tube interposed between the jaws. Adjacent the inner ends of the jaws, the ends of the strand are bent, each across the opposing jaw, and thence forwardly as shown at l8 and I9, and preferably 40 terminating in loops 20, 2|, which provide finger seats.
The transverse planes of the two jaws are normal to each other, that of the jaw l6 being perpendicular to the axis of the loop [0. The return or top element of the jaw I6 is formed into a U-shaped retaining loop 22, adjacent the outer 5 end of the jaw, which normally extends between the two members of the jaw 11.
In applying the cock to a tube 23, the jaws are spread apart by thumb and finger pressure upon the loops 2!], 2| as shown in Fig. 2, sufficiently to 10 withdraw the retaining loop 22 from the jaw I1, and the tube is slipped past it to the position illustrated. Release of pressure on the members l8 and I9 permits the closing of the jaws together by the tendency of the loop to expand, thus com- 15 pressing the tube as shown in Fig. 3.
To permit the flow of fluid the jaws are spread apart, the loop or tooth 22, however, preventing the escape of the tube whatever may be its size.
I claim as my invention:
A pinch cock comprising a pair of jaws each having a tube-compressing area intermediate its ends and having an outer free end, a spring portion connecting the inner ends of the jaws urging the jaws together, a tube-retaining projection ex- 25 tending from one jaw toward the other at a point between the free end and the tube-compressing area of the jaw, and a finger seat portion extending away from each jaw at a point between its tube-compressing area and the spring connection whereby said areas of the jaws may be separated to relieve compression on a tube between said areas, the length of each finger seat extension and the length of the tube-retaining projection being so proportioned as to permit a tube to be introduced laterally from the free ends of the jaws, between the projection and the other jaw, and on to the tube-compressing areas when said areas are separated by pressing the free ends of the finger seat portions toward each other.
CARL S. HORNBERGER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US135733A US2127257A (en) | 1937-04-08 | 1937-04-08 | Pinch-cock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US135733A US2127257A (en) | 1937-04-08 | 1937-04-08 | Pinch-cock |
Publications (1)
Publication Number | Publication Date |
---|---|
US2127257A true US2127257A (en) | 1938-08-16 |
Family
ID=22469406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US135733A Expired - Lifetime US2127257A (en) | 1937-04-08 | 1937-04-08 | Pinch-cock |
Country Status (1)
Country | Link |
---|---|
US (1) | US2127257A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3061263A (en) * | 1959-01-16 | 1962-10-30 | William F Butler | Clamping device |
US3142472A (en) * | 1961-02-03 | 1964-07-28 | Chemicals Sales Inc | Safety clamp for hose |
US3164433A (en) * | 1962-03-12 | 1965-01-05 | Gen Motors Corp | Wiring connector |
US4298299A (en) * | 1978-12-18 | 1981-11-03 | Quarles James R | Hairpin cotter key |
US4354660A (en) * | 1981-02-02 | 1982-10-19 | Baxter Travenol Laboratories Inc. | In-line flow control clamp |
US5535970A (en) * | 1993-10-20 | 1996-07-16 | Gobbi; Gianfranco | Universal clamp for supporting the wall mounted piping of external electrical, telephone or plumbing systems |
US20060081797A1 (en) * | 2004-10-18 | 2006-04-20 | Z-Man Corporation | Pinch clamp |
US20090013509A1 (en) * | 2007-07-14 | 2009-01-15 | Kenneth Mark Busler | Clamp to hold an object inside a vessel |
-
1937
- 1937-04-08 US US135733A patent/US2127257A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3061263A (en) * | 1959-01-16 | 1962-10-30 | William F Butler | Clamping device |
US3142472A (en) * | 1961-02-03 | 1964-07-28 | Chemicals Sales Inc | Safety clamp for hose |
US3164433A (en) * | 1962-03-12 | 1965-01-05 | Gen Motors Corp | Wiring connector |
US4298299A (en) * | 1978-12-18 | 1981-11-03 | Quarles James R | Hairpin cotter key |
US4354660A (en) * | 1981-02-02 | 1982-10-19 | Baxter Travenol Laboratories Inc. | In-line flow control clamp |
US5535970A (en) * | 1993-10-20 | 1996-07-16 | Gobbi; Gianfranco | Universal clamp for supporting the wall mounted piping of external electrical, telephone or plumbing systems |
US20060081797A1 (en) * | 2004-10-18 | 2006-04-20 | Z-Man Corporation | Pinch clamp |
US7234677B2 (en) * | 2004-10-18 | 2007-06-26 | Z-Man Corporation | Pinch clamp |
US20070252096A1 (en) * | 2004-10-18 | 2007-11-01 | Zerfas Gerald B | Pinch clamp |
US8485495B2 (en) | 2004-10-18 | 2013-07-16 | Z-Man Corporation | Pinch clamp |
US20090013509A1 (en) * | 2007-07-14 | 2009-01-15 | Kenneth Mark Busler | Clamp to hold an object inside a vessel |
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