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US4493440A Expired / Lapsed US ⏱️ 0.0 years remaining

Wall-mounted soap dispenser

Assignee: PLATT ENERGY Corp
•
Filing: 1983-08-08
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Granted: 1985-01-15
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Expires: 2003-08-08
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Abstract

Abstract A wall mounted soap dispenser made of plastic is described. The dispenser includes a hand-operated pump which dispenses liquid soap under pressure and which can be manufactured inexpensively. A disposable container of liquid soap is inserted in the dispenser to refill the dispenser. The pump has on its top a pan to collect liquid spilled as the disposable container is inserted. The pump and container are enclosed in a plastic housing which hinges from a plastic wall plate. A plastic latch with plastic key is used to lock the housing to the wall mounting plate. The pump mechanism uses a piston of two sections of different diameter and corresponding piston chamber of two sections of different diameter. There is an adjustable piston stroke length limiting mechanism. The piston is attached to the lever which moves the piston by means of a crossbar on the end of the piston rod. The crossbar is inserted in a slot in the lever and then turned to cross the slot.

Inventors

  • 👤 John von Buelow
  • 👤 Stephen G. Hauser

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 15:20
CPC Classifications
A; A47; A47K; A47K5/00; A47K5/06; A47K5/12; A47K5/1202; A47K5/1204

Claims Analysis

Total Claims: 54
Claim 1
Independent Claim 255 words
A dispenser for liquids, pastes, and creams capable of being mounted on a vertical surface comprising: a manual pumping mechanism including, a pump housing providing a reservoir for liquid, a pump chamber within said pump housing having at least one connecting opening to said reservoir, having a smaller chamber segment nearer the front of said mechanism and a larger chamber segment behind and co-axial with said smaller chamber segment, having a dispensing opening in said smaller chamber segment, a piston having a smaller piston segment and a larger piston segment behind and co-axial with said smaller piston segment, having a piston rod on the end of and co-axial with said larger piston segment, having grooves on each of said piston segments with gaskets fit into said grooves so as to form a sliding-contact fit between said chamber segments and said piston segments, said piston rod having at its end a crossbar, a lever pivoted at its upper end from the rear side of said pump housing and attached near its middle to said piston rod, said lever having a slot adapted and constructed to fit said piston into said lever, said crossbar having a flat at one end, said lever having a stop on its back side adapted and constructed so that after inserting said crossbar through said slot and rotating said crossbar by ninety degrees, said flat rests against said stop, a spring means forcing said lever toward the rear of said dispenser, and a means for attaching said mechanism to a vertical surface.
Claim 2
Dependent Claim 255 words
A dispenser for liquids, pastes, and creams capable of being mounted on a vertical surface comprising: a manual pumping mechanism including, a pump housing providing a reservoir for liquid, a pump chamber within said pump housing having at least one connecting opening to said reservoir, having a smaller chamber segment nearer the front of said mechanism and a larger chamber segment behind and co-axial with said smaller chamber segment, having a dispensing opening in said smaller chamber segment, a piston having a smaller piston segment and a larger piston segment behind and co-axial with said smaller piston segment, having a piston rod on the end of and co-axial with said larger piston segment, having grooves on each of said piston segments with gaskets fit into said grooves so as to form a sliding-contact fit between said chamber segments and said piston segments, said piston rod having at its end a crossbar, a lever pivoted at its upper end from the rear side of said pump housing and attached near its middle to said piston rod, said lever having a slot adapted and constructed to fit said piston into said lever, said crossbar having a flat at one end, said lever having a stop on its back side adapted and constructed so that after inserting said crossbar through said slot and rotating said crossbar by ninety degrees, said flat rests against said stop, a spring means forcing said lever toward the rear of said dispenser, and a means for attaching said mechanism to a vertical surface.
Claim 3
Dependent Claim 33 words
A dispenser as in claim 1 where said two segments of said pump chamber are cylindrical segments of different diameter and said two segments of said piston are cylindrical segments of different diameter.
Claim 4
Dependent Claim 20 words
A dispenser as in claim 2 where said piston includes a piston cylinder, a piston cap, and a piston base.
Claim 5
Dependent Claim 26 words
A dispenser as in claim 3 where said piston cylinder, piston cap and piston base are so formed as to make said piston hollow when assembled.
Claim 6
Dependent Claim 37 words
A dispenser as in claim 3 where said piston cylinder, piston cap and piston base are constructed and adapted as to form said gasket grooves in the joints between said piston cylinder, piston cap and piston base.
Claim 7
Dependent Claim 46 words
A dispenser as in claim 1 where said means for attaching said mechanisms to said vertical surface is a plate having holes formed in it through which fastening means can be attached to said vertical surface, said plate having means to hold said manual pumping mechanism.
Claim 8
Dependent Claim 49 words
A dispenser as in claim 6 where said means to hold said manual pumping mechanism includes rails on the rear of said pump housing which cooperate with flanges on said plate adapted and constructed so that said pump mechanism can be slid off said plate for servicing or cleaning.
Claim 9
Dependent Claim 35 words
A dispenser as in claim 7 additionally comprising a tab on said pump housing cooperating with a locking tab on said plate adapted and constructed to lock said pump mechanism in place on said plate.
Claim 10
Dependent Claim 20 words
A dispenser as in claim 8 additionally comprising a gusset under said tab adapted and constructed to strengthen said tab.
Claim 11
Dependent Claim 20 words
A dispenser as claim 1 additionally comprising a covering means over said pumping mechanism and said means for attaching dispenser.
Claim 12
Dependent Claim 20 words
A dispenser as in claim 10 where said covering means has a transparent window whereby to view the liquid level.
Claim 13
Dependent Claim 17 words
A dispenser as in claim 10 where said covering means is hinged to said means for attaching.
Claim 14
Dependent Claim 19 words
A dispenser as in claim 12 where said covering means is hinged at the bottom of said covering means.
Claim 15
Dependent Claim 21 words
A dispenser as in claim 13 where said hinged covering means has near its top latching means to said attaching means.
Claim 16
Dependent Claim 15 words
A dispenser as in claim 14 where said latching means includes a lock and key.
Claim 17
Dependent Claim 37 words
A dispenser as in claim 15 where said key cooperating with said lock is a bar supporting two parallel rods whereby inserting said two rods into said lock allows the user to open or close said lock.
Claim 18
Dependent Claim 27 words
A dispenser as in claim 10 where said covering means has a sloping top whereby to prevent holding objects placed on the top of said covering means.
Claim 19
Dependent Claim 11 words
A dispenser as in claim 1 where said gaskets are X-gaskets.
Claim 20
Dependent Claim 23 words
A dispenser as in claim 1 additionally comprising a stroke adjuster means whereby the length of the stroke of said piston is adjusted.
Claim 21
Dependent Claim 26 words
A dispenser as in claim 19 where said stroke adjusting means comprises a cylindrical ring fitting around said piston rod having segments of different cylindrical length.
Claim 22
Dependent Claim 18 words
A dispenser as in claim 20 where said stroke adjusting means has three segments of different cylindrical length.
Claim 23
Dependent Claim 29 words
A dispenser as in claim 20 where said cylindrical ring has a knurled region on the outside of said ring whereby to facilitate the finger grip of the user.
Claim 24
Dependent Claim 19 words
A dispenser as in claim 1 where said pump housing has on its top an inlet means for liquid.
Claim 25
Dependent Claim 36 words
A dispenser as in claim 23 where said inlet means is adapted and constructed to receive and support the neck of a bottle of said subject liquid, said bottle resting on top of said pump housing.
Claim 26
Dependent Claim 25 words
A dispenser as in claim 23 where the top of said pump housing is shaped as a pan adapted and constructed to hold spilled liquids.
Claim 27
Dependent Claim 26 words
A dispenser as in claim 25 where said pan has a drain hole adapted and constructed to pass spilled liquids from said pan into said reservoir.
Claim 28
Dependent Claim 35 words
A dispenser as in claim 1 additionally comprising bumpers on the back of said lever adapted and constructed to require that the direction of rotation of said crossbar be the shortest path to said stop.
Claim 29
Dependent Claim 235 words
A manual pumping mechanism for dispensing liquids, pastes, and creams comprising: a pump housing providing a reservoir for liquid; a pump chamber within said pump housing having at least one connecting opening to said reservoir, having a smaller chamber segment nearer the front of said mechanism and a larger chamber segment behind and co-axial with said smaller chamber segment, having a dispensing opening in said smaller chamber segment; a piston having a smaller piston segment and a larger piston segment behind and co-axial with said smaller piston segment, having a piston rod on the end of and co-axial with said larger piston segment, having grooves on each of said piston segments with gaskets fit into said grooves so as to form a sliding-contact fit between said chamber segments and said piston segments, said piston rod having on its end a crossbar; a lever pivoted at its upper end from the rear side of said pump housing and attached near its middle to said piston rod, said lever having a slot adapted and constructed to fit said piston into said lever, said crossbar having a flat on one end, said lever having a stop on its back side adapted and constructed so that after inserting said crossbar through said slot and rotating said crossbar by ninety degrees said flat rests against said stop; and a spring means forcing said lever toward the rear of said dispenser.
Claim 30
Dependent Claim 235 words
A manual pumping mechanism for dispensing liquids, pastes, and creams comprising: a pump housing providing a reservoir for liquid; a pump chamber within said pump housing having at least one connecting opening to said reservoir, having a smaller chamber segment nearer the front of said mechanism and a larger chamber segment behind and co-axial with said smaller chamber segment, having a dispensing opening in said smaller chamber segment; a piston having a smaller piston segment and a larger piston segment behind and co-axial with said smaller piston segment, having a piston rod on the end of and co-axial with said larger piston segment, having grooves on each of said piston segments with gaskets fit into said grooves so as to form a sliding-contact fit between said chamber segments and said piston segments, said piston rod having on its end a crossbar; a lever pivoted at its upper end from the rear side of said pump housing and attached near its middle to said piston rod, said lever having a slot adapted and constructed to fit said piston into said lever, said crossbar having a flat on one end, said lever having a stop on its back side adapted and constructed so that after inserting said crossbar through said slot and rotating said crossbar by ninety degrees said flat rests against said stop; and a spring means forcing said lever toward the rear of said dispenser.
Claim 31
Dependent Claim 44 words
A manual pumping mechanism as in claim 28 where said two segments of said pump chamber are cylindrical segments of different diameter and said two segments of said piston are cylindrical segments of different diameter fitting into said cylindrical segments in said pump chamber.
Claim 32
Dependent Claim 22 words
A manual pumping mechanism as in claim 29 where said piston includes a piston cylinder, a piston cap and a piston base.
Claim 33
Dependent Claim 28 words
A manual pumping mechanism as in claim 30 where said piston cylinder, piston cap and piston base are so formed as to make said piston hollow when assembled.
Claim 34
Dependent Claim 38 words
A manual pumping mechanism as in claim 30 where said piston cylinder, piston cap and piston base are adapted and constructed to form said gasket grooves in the joints between said piston cylinder, piston cap and piston base.
Claim 35
Dependent Claim 21 words
A manual pumping mechanism as in claim 30 where said piston cylinder, piston cap and piston base are made of plastic.
Claim 36
Dependent Claim 13 words
A manual pumping mechanism as in claim 28 where said gaskets are X-gaskets.
Claim 37
Dependent Claim 25 words
A manual pumping mechanism as in claim 28 additionally comprising a stroke adjusting means whereby the length of the stroke of said piston is adjusted.
Claim 38
Dependent Claim 28 words
A manual pumping mechanism as in claim 35 where said stroke adjusting means comprises a cylindrical ring fitting around said piston rod having segments of different cylindrical length.
Claim 39
Dependent Claim 20 words
A manual pumping mechanism as in claim 36 where said stroke adjusting means has three segments of different cylindrical length.
Claim 40
Dependent Claim 21 words
A manual pumping mechanism as in claim 28 where said pump housing has on its top an inlet means for liquid.
Claim 41
Dependent Claim 39 words
A manual pumping mechanism as in claim 38 where said inlet means is adapted and constructed to receive and support the neck of a bottle of said subject liquid, said bottle resting on the top of said pump housing.
Claim 42
Dependent Claim 27 words
A manual pumping mechanism as in claim 28 where the top of said pump housing is shaped as a pan adapted and constructed to hold spilled liquids.
Claim 43
Dependent Claim 28 words
A manual pumping mechanism as in claim 40 where said pan has a drain hole adapted and constructed to pass spilled liquids from said pan into said reservoir.
Claim 44
Dependent Claim 37 words
A manual pumping mechanism as in claim 28 additionally comprising bumpers on the back of said lever adapted and constructed to require that the direction of rotation of said crossbar be the shortest path to said stop.
Claim 45
Dependent Claim 458 words
A dispenser for liquids, pastes and creams capable of being mounted on a vertical surface comprising: a pump housing providing a reservoir for liquid, having the top of said pump housing shaped as a pan adapted and constructed to hold spilled liquids, having a drain hole in said pan adapted and constructed to pass spilled liquids from said pan into said reservoir, having an inlet on the top of said pump housing adapted and constructed to receive and support the neck of a bottle of said liquid, said bottle resting on the top of said pump housing; a pump chamber within said pump housing having at least one connecting opening to said reservoir, having a smaller cylindrical chamber segment nearer the front of said pump housing and a larger cylindrical chamber segment behind and co-axial with said smaller chamber segment, having a dispensing opening in said smaller chamber segment; a piston having a smaller cylindrical piston segment and a larger cylindrical piston segment behind and co-axial with said smaller piston segment, having a piston rod on the end of and co-axial with said larger piston segment, having grooves on each of said piston segments with X-gaskets fit into said grooves so as to form a sliding-contact fit between said cylinder segments and said piston segments, said piston includes a piston cap, piston cylinder and piston base adapted and constructed to form said grooves for X-rings in the joints between said piston cap, piston cylinder and piston base, there being a notch in said smaller piston segment adapted and constructed to facilitate dispensing subject liquid through said dispensing opening, there being a tongue inside said piston cylinder and a groove outside said piston base adapted and constructed to maintain a unique alignment between said piston rod and said notch; a lever pivoted at its upper end from the rear side of said pump housing and attached near its middle to said piston rod, said piston rod having at its end a crossbar and said lever had a slot adapted and constructed to fit said piston into said lever, where there is a flat on the end of said crossbar and a stop on the back side of said lever adapted and constructed so that, after inserting said crossbar through said slot and rotating said crossbar by ninety degrees, said flat rests against said stop; a spring forcing said lever toward the rear of said dispenser; a stroke adjusting cylindrical ring fitting around said piston rod and having three segments of different cylindrical length; a plate adapted and constructed to detachably hold said pump housing and to be attached to a vertical surface; and a hinged cover with latch which fits over said plate, said pump housing and said bottle.
Claim 46
Dependent Claim 458 words
A dispenser for liquids, pastes and creams capable of being mounted on a vertical surface comprising: a pump housing providing a reservoir for liquid, having the top of said pump housing shaped as a pan adapted and constructed to hold spilled liquids, having a drain hole in said pan adapted and constructed to pass spilled liquids from said pan into said reservoir, having an inlet on the top of said pump housing adapted and constructed to receive and support the neck of a bottle of said liquid, said bottle resting on the top of said pump housing; a pump chamber within said pump housing having at least one connecting opening to said reservoir, having a smaller cylindrical chamber segment nearer the front of said pump housing and a larger cylindrical chamber segment behind and co-axial with said smaller chamber segment, having a dispensing opening in said smaller chamber segment; a piston having a smaller cylindrical piston segment and a larger cylindrical piston segment behind and co-axial with said smaller piston segment, having a piston rod on the end of and co-axial with said larger piston segment, having grooves on each of said piston segments with X-gaskets fit into said grooves so as to form a sliding-contact fit between said cylinder segments and said piston segments, said piston includes a piston cap, piston cylinder and piston base adapted and constructed to form said grooves for X-rings in the joints between said piston cap, piston cylinder and piston base, there being a notch in said smaller piston segment adapted and constructed to facilitate dispensing subject liquid through said dispensing opening, there being a tongue inside said piston cylinder and a groove outside said piston base adapted and constructed to maintain a unique alignment between said piston rod and said notch; a lever pivoted at its upper end from the rear side of said pump housing and attached near its middle to said piston rod, said piston rod having at its end a crossbar and said lever had a slot adapted and constructed to fit said piston into said lever, where there is a flat on the end of said crossbar and a stop on the back side of said lever adapted and constructed so that, after inserting said crossbar through said slot and rotating said crossbar by ninety degrees, said flat rests against said stop; a spring forcing said lever toward the rear of said dispenser; a stroke adjusting cylindrical ring fitting around said piston rod and having three segments of different cylindrical length; a plate adapted and constructed to detachably hold said pump housing and to be attached to a vertical surface; and a hinged cover with latch which fits over said plate, said pump housing and said bottle.
Claim 47
Dependent Claim 262 words
A dispenser for liquids, pastes, and creams capable of being mounted on a vertical surface comprising: a manual pumping mechanism including, a pump housing providing a reservoir for liquid, a pump chamber within said pump housing having at least one connecting opening to said reservoir, having a smaller chamber segment nearer the front of said mechanism and a larger chamber segment behind and co-axial with said smaller chamber segment, having a dispensing opening in said smaller chamber segment, a piston having a smaller piston segment and a larger piston segment behind and co-axial with said smaller piston segment, having a piston rod on the end of and co-axial with said larger piston segment, having grooves on each of said piston segments with gaskets fit into said grooves so as to form a sliding-contact fit between said chamber segments and said piston segments, said smaller piston segment having a notch adapted and constructed to facilitate dispensing subject liquid through said dispensing opening, said piston further including a piston cylinder, a piston cap and a piston base so formed as the make said piston hollow when assembled, there being a tongue inside said piston cylinder fitting into a groove outside said piston adapted and constructed to maintain a unique alignment between said piston rod and said notch, a lever pivoted at its upper end from the rear side of said pump housing and attached near its middle to said piston rod, a spring means forcing said lever toward the rear of said dispenser, and a means for attaching said mechanism to a vertical surface.
Claim 48
Dependent Claim 262 words
A dispenser for liquids, pastes, and creams capable of being mounted on a vertical surface comprising: a manual pumping mechanism including, a pump housing providing a reservoir for liquid, a pump chamber within said pump housing having at least one connecting opening to said reservoir, having a smaller chamber segment nearer the front of said mechanism and a larger chamber segment behind and co-axial with said smaller chamber segment, having a dispensing opening in said smaller chamber segment, a piston having a smaller piston segment and a larger piston segment behind and co-axial with said smaller piston segment, having a piston rod on the end of and co-axial with said larger piston segment, having grooves on each of said piston segments with gaskets fit into said grooves so as to form a sliding-contact fit between said chamber segments and said piston segments, said smaller piston segment having a notch adapted and constructed to facilitate dispensing subject liquid through said dispensing opening, said piston further including a piston cylinder, a piston cap and a piston base so formed as the make said piston hollow when assembled, there being a tongue inside said piston cylinder fitting into a groove outside said piston adapted and constructed to maintain a unique alignment between said piston rod and said notch, a lever pivoted at its upper end from the rear side of said pump housing and attached near its middle to said piston rod, a spring means forcing said lever toward the rear of said dispenser, and a means for attaching said mechanism to a vertical surface.
Claim 49
Dependent Claim 33 words
A dispenser as in claim 44 where said two segments of said pump chamber are cylindrical segments of different diameter and said two segments of said piston are cylindrical segments of different diameter.
Claim 50
Dependent Claim 46 words
A dispenser as in claim 44 where said means for attaching said mechanisms to said vertical surface is a plate having holes formed in it through which fastening means can be attached to said vertical surface, said plate having means to hold said manual pumping mechanism.
Claim 51
Dependent Claim 21 words
A dispenser as in claim 44 additionally comprising a covering means over said pumping mechanism and said means for attaching dispenser.
Claim 52
Dependent Claim 11 words
A dispenser as in claim 44 where said gaskets are X-gaskets.
Claim 53
Dependent Claim 23 words
A dispenser as in claim 44 additionally comprising a stroke adjuster means whereby the length of the stroke of said piston is adjusted.
Claim 54
Dependent Claim 19 words
A dispenser as in claim 44 where said pump housing has on its top an inlet means for liquid.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-01-15 1988-07-16 1989-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-01-15 1992-07-16 1993-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-01-15 1996-07-16 1997-01-15 $7700.00 Window Closed / Lapsed

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