Patent US3918407A successfully refreshed from Google Patents.
US3918407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pet collar
Assignee: AHP Subsidiary 9 Corp
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Filing: 1973-11-20
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Granted: 1975-11-11
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Expires: 1993-11-20
Abstract
Abstract The use of dimethyl 1,2-dibromo-2,2-dichloroethyl phosphate (naled) in a synthetic resin (PVC) collar for controlling fleas on animals such as dogs and cats. A manufacturing procedure for the collar is described which involves casting a dispersion containing a volatile surface porosity control component to produce a porous surface thereby to enhance the naled release rate to a level adequate for controlling fleas during a period of about 4 1/2 months.
Inventors
- 👤 Jack Greenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:32
CPC Classifications
A; A01; A01K; A01K27/00; A01K27/007
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
175 words
A flea control collar for a warm blooded animal comprising: a strip of flexible synthetic resin material containing between about 5 and 25 wt. percent naled and having a width, thickness and length sufficient to encircle the neck of the animal with clamping means at one end of the collars for engaging a spaced collar portion to prevent loss of the collar from the neck of the wearing animal; said strip being formed from a dispersion of a synthetic resin, naled and a surface porosity control component that is non-reactive in the dispersion and has a boiling point at or below the curing temperature of said resin, said dispersion being heated to its curing temperature to produce surface openings in communication with pores in said strip by vaporization of said porosity control component to provide for release of naled gas at a rate effective to control fleas on said animal throughout a period of at least about 90 days, but insufficient to form as droplets on the strip or to be toxic to said animal.
Claim 2
Dependent Claim
175 words
A flea control collar for a warm blooded animal comprising: a strip of flexible synthetic resin material containing between about 5 and 25 wt. percent naled and having a width, thickness and length sufficient to encircle the neck of the animal with clamping means at one end of the collars for engaging a spaced collar portion to prevent loss of the collar from the neck of the wearing animal; said strip being formed from a dispersion of a synthetic resin, naled and a surface porosity control component that is non-reactive in the dispersion and has a boiling point at or below the curing temperature of said resin, said dispersion being heated to its curing temperature to produce surface openings in communication with pores in said strip by vaporization of said porosity control component to provide for release of naled gas at a rate effective to control fleas on said animal throughout a period of at least about 90 days, but insufficient to form as droplets on the strip or to be toxic to said animal.
Claim 3
Dependent Claim
75 words
The flea collar of claim 1 wherein the synthetic resin is a polyvinyl chloride resin, the polyvinyl chloride resin is formed into said strip from a liquid plastisol dispersion including from about 0.8 to about 4 wt. percent of said surface porosity control component by filling an open faced casting mold pre-heated to a temperature of about 290*F., which is thereafter increased to about 360*F., and which is thereafter cooled and removed from said mold.
Claim 4
Independent Claim
198 words
A method of treating a warm blooded animal for fleas which comprises: providing a strip having a width, thickness and length suitable for use as a collar for said animal, said strip comprising a mixture of a synthetic resin, and from between about 5 and 25 percent by weight of said strip of naled; said strip being formed from a dispersion of said synthetic resin, naled, and a minor amount of a surface porosity control agent that is nonreactive in the dispersion and has a boiling point at or below the curing temperature of said dispersion, which dispersion is formed into said strip at the curing temperature to vaporize said control agent and produce surface porosity in said strip to provide for release of naled at a rate to effectively control fleas on said animal throughout a period of at least about 90 days but insufficient to form as droplets on the strip or to be toxic to said animal; providing on said collar near one end a clamping means for engaging a spaced collar portion to prevent loss of the collar from the neck of the wearing animal; and placing and maintaining said collar on said animal.
Claim 5
Independent Claim
198 words
A method of treating a warm blooded animal for fleas which comprises: providing a strip having a width, thickness and length suitable for use as a collar for said animal, said strip comprising a mixture of a synthetic resin, and from between about 5 and 25 percent by weight of said strip of naled; said strip being formed from a dispersion of said synthetic resin, naled, and a minor amount of a surface porosity control agent that is nonreactive in the dispersion and has a boiling point at or below the curing temperature of said dispersion, which dispersion is formed into said strip at the curing temperature to vaporize said control agent and produce surface porosity in said strip to provide for release of naled at a rate to effectively control fleas on said animal throughout a period of at least about 90 days but insufficient to form as droplets on the strip or to be toxic to said animal; providing on said collar near one end a clamping means for engaging a spaced collar portion to prevent loss of the collar from the neck of the wearing animal; and placing and maintaining said collar on said animal.
Claim 6
Dependent Claim
64 words
The method of claim 3 wherein said synthetic resin is formed into said strip from a liquid plastisol dispersion containing polyvinyl chloride by filling an open faced casting mold pre-heated to a temperature of about 290*F., increasing the mold temperature to about 360*F. in a hot air, radiant heated oven for about two minutes, and thereafter cooling and removing the collar from said mold.
Claim 7
Dependent Claim
179 words
A flea control collar for a warm blooded animal comprising: a strip of a flexible synthetic resin material containing between about 5 and 25 wt. percent naled and having a width, thickness and length sufficient to encircle the neck of an animal with clamping means at one end of the collar to prevent loss of the collar from the neck of the wearing animal; said strip being formed from a liquid dispersion of a synthetic resin, naled and a surface porosity control component that is non-reactive in the dispersion and has a boiling point beTween about 176*F. and 375*F. to be at or below the curing temperature of the resin, said dispersion being heated to a curing temperature sufficiently high to produce surface openings in communication with pores produced by vaporization of said porosity control component to provide for the release of naled gas at a rate effective to control fleas on said animal throughout a period of at least about 90 days, but insufficient to form as droplets on the strip or to be toxic to the animal.
Claim 8
Dependent Claim
179 words
A flea control collar for a warm blooded animal comprising: a strip of a flexible synthetic resin material containing between about 5 and 25 wt. percent naled and having a width, thickness and length sufficient to encircle the neck of an animal with clamping means at one end of the collar to prevent loss of the collar from the neck of the wearing animal; said strip being formed from a liquid dispersion of a synthetic resin, naled and a surface porosity control component that is non-reactive in the dispersion and has a boiling point beTween about 176*F. and 375*F. to be at or below the curing temperature of the resin, said dispersion being heated to a curing temperature sufficiently high to produce surface openings in communication with pores produced by vaporization of said porosity control component to provide for the release of naled gas at a rate effective to control fleas on said animal throughout a period of at least about 90 days, but insufficient to form as droplets on the strip or to be toxic to the animal.
Claim 9
Dependent Claim
51 words
The collar of claim 5 wherein the surface porosity control component is present in a plastisol dispersion in an amount between about 0.8 and 4 wt. percent of the dispersion and is selected from the group consisting of chloroacetaldehyde, dichloroacetaldehyde, chloral, bromoacetaldehyde, dibromoacetaldehyde, bromal, bromodichloroacetaldehyde, chlorodibromoacetaldehyde, bromochloroacetaldehyde, 2-bromopropanol, or mixtures thereof.
Claim 10
Dependent Claim
13 words
The collar of claim 6 wherein the surface porosity control component is bromoacetaldehyde.
Claim 11
Independent Claim
197 words
A method of treating warm blooded animals for fleas which comprises: providing a dispersion of a synthetic resin, naled and between 0.8 and 4 wt. percent of a surface porosity control component that is non-reactive in the dispersion and has a boiling point between about 176*F. and 375*F. to be at or slightly below the curing temperature of the dispersion; forming the dispersion into a strip having a width, thickness and length suitable for use as a collar for said animals including between 5 and 25 wt. % naled by heating said dispersion to its curing temperature to produce surface openings in communication with pores in said strip by vaporization of said surface porosity control component to provide for the release of naled gas at a rate effective to control fleas on said animal throughout a period of at least about ninety days but insufficient to form as droplets on the strip or to be toxic to said animals; providing on said collar near one end a clamping means for engaging a spaced collar portion to prevent loss of the collar from the neck of the wearing animal; and placing and maintaining said collar on said animal.
Claim 12
Independent Claim
197 words
A method of treating warm blooded animals for fleas which comprises: providing a dispersion of a synthetic resin, naled and between 0.8 and 4 wt. percent of a surface porosity control component that is non-reactive in the dispersion and has a boiling point between about 176*F. and 375*F. to be at or slightly below the curing temperature of the dispersion; forming the dispersion into a strip having a width, thickness and length suitable for use as a collar for said animals including between 5 and 25 wt. % naled by heating said dispersion to its curing temperature to produce surface openings in communication with pores in said strip by vaporization of said surface porosity control component to provide for the release of naled gas at a rate effective to control fleas on said animal throughout a period of at least about ninety days but insufficient to form as droplets on the strip or to be toxic to said animals; providing on said collar near one end a clamping means for engaging a spaced collar portion to prevent loss of the collar from the neck of the wearing animal; and placing and maintaining said collar on said animal.
Claim 13
Dependent Claim
31 words
The method of claim 8 wherein the surface porosity control component is selected from the group consisting of chloroacetaldehyde, dichloroacetaldehyde, chloral, bromoacetaldehyde, dibromoacetaldehyde, bromal, bromodichloroacetaldehyde, chlorodibromoacetaldehyde, bromochloroacetaldehyde, 2-bromopropanol, or mixtures thereof.
Claim 14
Dependent Claim
13 words
The method of claim 8 wherein the surface porosity control component is bromoacetaldehyde.
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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |