Patent US3719429A successfully refreshed from Google Patents.
US3719429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump apparatus and housing therefor
Assignee: Rule Industries LLC
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Filing: 1971-10-07
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Granted: 1973-03-06
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Expires: 1991-10-07
Abstract
Abstract There is described an impeller pump assembly and particularly an impeller pump housing characterized by simple and rapid assembly and disassembly thereof.
Inventors
- 👤 C Rule
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:25
CPC Classifications
F; F04; F04D; F04D25/00; F04D25/02; F04D25/08; F04D25/084; F04D29/00; F04D29/60; F04D29/62; F04D29/628
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
207 words
An impeller pump housing assembly comprising: A. a rear end wall defining an end closure of the housing and comprising an endplate, a rear tubular casing extending forwardly from said endplate and at least two resiliently inwardly biasable arm members extending forwardly from the perimeter of said endplate, said arm members having engaging means near the free ends thereof; B. front tubular casing means having a front portion and a rear portion, said rear portion having means to engage said rear tubular casing in fluid-tight relationship and said front portion having means to engage a tubular impeller chamber in substantially fluid-tight relationship; and C. housing means comprising i. a partition, ii. enclosure means integral with and extending rearwardly from said partition, said enclosure means having toward the rear margin thereof corresponding means to engage said engaging means of said arm members of (A) in interlocking relationship therewith, iii. a tubular impeller chamber extending rearwardly from said partition and adapted to engage said front portion of said front tubular casing, iv. an aperture through said partition in open communication with said impeller chamber and defining an inlet thereinto, and v. tangential outlet means adapted to conduct fluid from said impeller chamber to the exterior of said enclosure means.
Claim 2
Dependent Claim
207 words
An impeller pump housing assembly comprising: A. a rear end wall defining an end closure of the housing and comprising an endplate, a rear tubular casing extending forwardly from said endplate and at least two resiliently inwardly biasable arm members extending forwardly from the perimeter of said endplate, said arm members having engaging means near the free ends thereof; B. front tubular casing means having a front portion and a rear portion, said rear portion having means to engage said rear tubular casing in fluid-tight relationship and said front portion having means to engage a tubular impeller chamber in substantially fluid-tight relationship; and C. housing means comprising i. a partition, ii. enclosure means integral with and extending rearwardly from said partition, said enclosure means having toward the rear margin thereof corresponding means to engage said engaging means of said arm members of (A) in interlocking relationship therewith, iii. a tubular impeller chamber extending rearwardly from said partition and adapted to engage said front portion of said front tubular casing, iv. an aperture through said partition in open communication with said impeller chamber and defining an inlet thereinto, and v. tangential outlet means adapted to conduct fluid from said impeller chamber to the exterior of said enclosure means.
Claim 3
Dependent Claim
207 words
An impeller pump housing assembly comprising: A. a rear end wall defining an end closure of the housing and comprising an endplate, a rear tubular casing extending forwardly from said endplate and at least two resiliently inwardly biasable arm members extending forwardly from the perimeter of said endplate, said arm members having engaging means near the free ends thereof; B. front tubular casing means having a front portion and a rear portion, said rear portion having means to engage said rear tubular casing in fluid-tight relationship and said front portion having means to engage a tubular impeller chamber in substantially fluid-tight relationship; and C. housing means comprising i. a partition, ii. enclosure means integral with and extending rearwardly from said partition, said enclosure means having toward the rear margin thereof corresponding means to engage said engaging means of said arm members of (A) in interlocking relationship therewith, iii. a tubular impeller chamber extending rearwardly from said partition and adapted to engage said front portion of said front tubular casing, iv. an aperture through said partition in open communication with said impeller chamber and defining an inlet thereinto, and v. tangential outlet means adapted to conduct fluid from said impeller chamber to the exterior of said enclosure means.
Claim 4
Dependent Claim
207 words
An impeller pump housing assembly comprising: A. a rear end wall defining an end closure of the housing and comprising an endplate, a rear tubular casing extending forwardly from said endplate and at least two resiliently inwardly biasable arm members extending forwardly from the perimeter of said endplate, said arm members having engaging means near the free ends thereof; B. front tubular casing means having a front portion and a rear portion, said rear portion having means to engage said rear tubular casing in fluid-tight relationship and said front portion having means to engage a tubular impeller chamber in substantially fluid-tight relationship; and C. housing means comprising i. a partition, ii. enclosure means integral with and extending rearwardly from said partition, said enclosure means having toward the rear margin thereof corresponding means to engage said engaging means of said arm members of (A) in interlocking relationship therewith, iii. a tubular impeller chamber extending rearwardly from said partition and adapted to engage said front portion of said front tubular casing, iv. an aperture through said partition in open communication with said impeller chamber and defining an inlet thereinto, and v. tangential outlet means adapted to conduct fluid from said impeller chamber to the exterior of said enclosure means.
Claim 5
Dependent Claim
31 words
The pump housing of claim 1 wherein said front tubular casing comprises a front portion of abruptly smaller diameter than said rear portion, thereby forming a shoulder at the junction therebetween.
Claim 6
Dependent Claim
51 words
The pump housing of claim 1 wherein said front portion of said front tubular casing is provided with front and rear shaft seals in spaced apart relationship and downwardly oriented aperture means positioned between said seals and in open communication with the bore of said front portion of said front casing.
Claim 7
Dependent Claim
111 words
The pump housing of claim 1 wherein said means to engage said rear portion of said front casing with said rear casing includes A. at least two circumferentially oriented slots located near the forward margins of said rear casing, each of said slots comprising a relatively deeply slotted center section and at least one relatively narrowly slotted lateral section coextensive with said slotted center section and having a common and continuous rear margin therewith, and B. stud means projecting from the tubular surface of said rear portion of said front casing, said stud means being adapted to correspond to and engage in locking relationship with the center sections of said slots.
Claim 8
Dependent Claim
40 words
The pump housing of claim 4 wherein the front surface of each said stud means is substantially perpendicular to said tubular surface and wherein the rear surfaCe of each said stud means is beveled or radiused rearwardly from its apex.
Claim 9
Dependent Claim
25 words
The pump housing of claim 4 wherein the sides of each of said stud means are angled or radiused towards the apex of the stud.
Claim 10
Dependent Claim
30 words
The pump housing of claim 4 wherein each said circumferential slot comprises a relatively narrow slotted lateral section extending from each side of said relatively more deeply slotted center section.
Claim 11
Dependent Claim
111 words
The pump housing of claim 1 wherein said fluid-tight relationships between said rear casing, front casing and impeller chamber are provided by A. paired spaced apart flange means located on the rear portion of said front casing and defining therebetween a seat for an O ring, and an O ring in said seat adapted to bear against the interior of said rear casing in fluid-tight relationship; and B. paired spaced apart flange means located on the front portion of said front casing and defining therebetween a seat for an O ring, and an O ring in said seat adapted to bear against the interior of said impeller chamber in fluid-tight relationship.
Claim 12
Dependent Claim
28 words
The pump housing of claim 1 wherein said endplate has a resilient flange extending forwardly from the perimeter thereof and said arm members are attached to said flange.
Claim 13
Dependent Claim
23 words
The pump housing of claim 9 wherein said flange is provided with slots adjacent the sides of said arm members and parallel therewith.
Claim 14
Dependent Claim
86 words
The pump housing of claim 1 wherein said engaging means of each of said arm members includes a perimetrically oriented slot on the outer aspect of said arm and an outwardly oriented projection located substantially immediately forward of said slot and wherein each said corresponding engaging means of said enclosure means includes perimetrically oriented bridge means adapted to receive said slot of said arm member and aperture means located substantially immediately forward of said bridge means and adapted to receive said projection of said arm member.
Claim 15
Dependent Claim
73 words
An impeller pump comprising the pump housing of claim 1 and containing therein: A. a motor within said rear casing and said rear portion of said front casing; B. a shaft in operative communication with said motor and extending through said front casing into said impeller chamber; C. at least one shaft seal associated with said shaft and said front casing; and D. an impeller affixed to said shaft within said impeller chamber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |