US3831897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skimmer throat entrance form
Assignee: Individual
•
Filing: 1973-02-26
•
Granted: 1974-08-27
•
Expires: 1993-02-26
Abstract
Abstract A reusable skimmer throat entrance form to provide an inlet opening in an upwardly extending wall of a swimming pool to enable surface water from a filled pool to enter a surface skimmer through the throat thereof which communicates with the inlet opening. The reusable form has at its inner end a plug section removably insertable into the skimmer throat to substantially close the same. At its outer end portion the reusable form has a mouth-forming section extending outwardly from the plug section and enlarging transversely with respect thereto to define in the swimming pool wall an entrance opening of appropriate dimensions, configuration, and orientation. The form is equipped with stop structure adjacent the mergence of the plug and mouth-forming sections for cooperation with the skimmer to positionally relate the form and skimmer. The mouth-forming section of the form is provided with a sheath along at least certain wall surfaces to resist abrasion and impact of wet concrete, the sheath being resilient for the purpose of elastically receiving impact from wet concrete directed thereagainst.
Inventors
- 👤 W Stegmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:21
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/1209; E04H4/1272; Y; Y10; Y10S; Y10S249/00; Y10S249/03
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
169 words
In combination, a reusable form adapted to provide in the wall of a swimming pool or the like an inlet opening for a surface skimmer, and a surface skimmer having a throat communicable with such opening and through which surface water from a filled pool enters the skimmer for cleaning purposes, said form comprising: a body equipped at the inner end thereof with a plug section slidably insertable into said throat to establish a relatively tight frictional fit therewith and substantially close the same and positionally relate said body and skimmer in transverse and vertical directions; said body further being equipped with a mouthforming section extending outwardly from said plug section and enlarging transversely with respect thereto; and stop structure provided by said body for cooperative engagement with such skimmer to positionally relate the body and skimmer in longitudinal directions, whereby a predetermined positional relationship is established between said form and such skimmer and between the skimmer and inlet opening therefor in a pool wall associated with the skimmer.
Claim 2
Dependent Claim
169 words
In combination, a reusable form adapted to provide in the wall of a swimming pool or the like an inlet opening for a surface skimmer, and a surface skimmer having a throat communicable with such opening and through which surface water from a filled pool enters the skimmer for cleaning purposes, said form comprising: a body equipped at the inner end thereof with a plug section slidably insertable into said throat to establish a relatively tight frictional fit therewith and substantially close the same and positionally relate said body and skimmer in transverse and vertical directions; said body further being equipped with a mouthforming section extending outwardly from said plug section and enlarging transversely with respect thereto; and stop structure provided by said body for cooperative engagement with such skimmer to positionally relate the body and skimmer in longitudinal directions, whereby a predetermined positional relationship is established between said form and such skimmer and between the skimmer and inlet opening therefor in a pool wall associated with the skimmer.
Claim 3
Dependent Claim
68 words
The form of claim 1 in which said skimmer throat is equipped with a protuberance projecting from an inner face thereof toward the center of the throat to serve as a stop for a skimmer valve, and in which said plug section along one surface thereof is provided with a recess adapted to pass said protuberance therethrough upon insertion and removal of said plug section from said throat.
Claim 4
Dependent Claim
43 words
The form of claim 2 in which said recess is provided along the upper surface of said plug section and has an interior terminus abuttable by such throat protuberance, the interior terminus of said recess comprising a part of the aforesaid stop structure.
Claim 5
Dependent Claim
29 words
The form of claim 1 in which at least certain surfaces of said mouth-forming section are equipped therealong with a sheath resistive to abrasion and impact of wet concrete.
Claim 6
Dependent Claim
21 words
The form of claim 4 in which said sheath is resilient so as to elastically receive impact thereagainst of wet concrete.
Claim 7
Dependent Claim
21 words
The form of cLaim 1 in which said stop structure is located at the mergence of said plug and mouth-forming section.
Claim 8
Dependent Claim
33 words
The form of claim 6 in which said stop structure comprises laterally extending stop shoulders provided by said form body for engagement with the skimmer throat into which said plug section is insertable.
Claim 9
Dependent Claim
31 words
The form of claim 1 in which said body is a substantially unitary mass of material, and in which said mouth-forming section progressively enlarges transversely from adjacency with said plug section.
Claim 10
Dependent Claim
20 words
The form of claim 8 in which said mouth-forming section has transversely spaced curvilinear walls defining said progressive transverse enlargement.
Claim 11
Dependent Claim
90 words
The form of claim 2 in which at least certain surfaces of said mouth-forming section are equipped therealong with a sheath resistive to abrasion and impact of wet concrete, in which said sheath is resilient so as to elastically receive impact thereagainst of wet concrete, in which said stop structure is located at the mergence of said plug and mouth-forming section, and in which said stop structure comprises laterally extending stop shoulders provided by said form body for engagement with the skimmer throat into which said plug section is insertable.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |